CS241311 Final Report

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  • Committee E-1 Proficiency Test Program

    Chemical Analysis of Plain Carbon and Low-Alloy Steel Sample ID: 4Q13L1 and 4Q13L2

    Fourth Quarter 2013

    Issued by:

    ASTM International

    100 Barr Harbor Drive

    West Conshohocken, PA 19428-2959

    (610)832-9500

    Sponsored by ASTM Committee E-1 on Analytical Chemistry for

    Metals, Ores, and Related Materials

  • Copyright 2014 ASTM International, West Conshohocken, PA. All rights reserved. This material may not

    be reproduced or copied, in whole or in part, in any printed, mechanical, electronic, film, or other distribution

    and storage media, without the written consent of the publisher.

  • TABLE OF CONTENTS Page Report Introduction .................................................................................................................. 3-4 Alphabetical Listing of Program Participants ......................................................................... 5-7 Z Score Summary Tables Sample 4Q13L1 ................................................................................................................ 8-14 Sample 4Q13L2 ................................................................................................................ 15-21 Aluminum ................................................................................................................................. 22-27 Arsenic...................................................................................................................................... 28-32 Calcium .................................................................................................................................... 33-38 Carbon ...................................................................................................................................... 39-45 Chromium ................................................................................................................................. 46-52 Cobalt ....................................................................................................................................... 53-58 Copper ...................................................................................................................................... 59-65 Manganese ................................................................................................................................ 66-72 Molybdenum ............................................................................................................................ 73-79 Nickel ....................................................................................................................................... 80-86 Nitrogen .................................................................................................................................... 87-92 Oxygen ..................................................................................................................................... 93-96 Phosphorus ............................................................................................................................... 97-102 Silicon ....................................................................................................................................... 103-109 Sulfur ........................................................................................................................................ 110-116 Tin............................................................................................................................................. 117-122 Participant comments .............................................................................................................. 123 Test Instructions and Data Entry Form ................................................................................... 124-131

  • INTRODUCTION

    This report constitutes the final report of results for the Fourth Quarter 2013 Proficiency Test Program for

    Chemical Analysis of Plain Carbon and Low Alloy Steel. The report contains tables of results for laboratory

    data, statistical summary analyses of test results, and graphs charting laboratory data. Tables and charts are

    labeled with the program title and element determined.

    The TABLE OF RESULTS provides a listing of laboratories with corresponding test results. Each

    laboratory is identified by a randomly selected code with the same laboratory code applying throughout the

    entire report. Sample 4Q13L1 and 4Q13L2 results are included on the same page for each element.

    The tables are organized by the element determined. Test results for each element are grouped in the table

    according to the ASTM method utilized. Individual method summaries are provided at the end of each

    grouping enabling you to compare your laboratory data to the Robust Mean obtained by a given method. An

    Overall Summary Robust Mean combining all methods is provided at the end of the table for comparison to

    the grand mean.

    The last grouping of test results in the tables, where applicable, provides the test results received from

    laboratories utilizing other methods. Individual summaries are provided for this grouping where there are

    sufficient number of data received. This grouping is included in the Overall Summary.

    Dev. Column indicates whether or not the laboratory deviated from the ASTM method utilized. A

    indicates yes, indicates that the laboratory did not provide a response.

    Description of Z-Score Column: The z-score column reports each lab' s deviation in units of standard

    deviations. The z-score is the ratio of the deviation to the standard deviation. A z-score greater than 2 -- or

    less than negative 2 -- should cause a laboratory to review their test data for any possible systematic error.

    Z-scores outside this range should occur only about one time in twenty, if a laboratory has average capability

    running the method. Laboratories should strive to obtain z-score values close to zero.

    Description of Robust Mean and Robust Standard Deviation

    Means and standard deviations are computed using a two-stage robust procedure which is designed to limit

    the influence of unusually large or small results, while eliminating only the most egregious among them. The

    computations and philosophy of robust statistics are explained more fully in Robust Statistics How Not to Reject Outliers, by the Analytical Methods Committee of the Royal Society of Chemistry, Analyst, 114 pp,

    1693-97, Dec. 1989. In this report, data are subjected to these robust computations twice. After the first

    stage, results which differ from the (first stage) robust mean by more than three times the (first stage) robust

    standard deviation are noted as outliers (shown in the Table of Results marked with a double asterisk) and

    excluded from the second-round robust computation. The robust mean and standard deviation resulting from

    this second-stage computation are those published in the Table. (There is no second stage exclusion. As the

    second-stage robust standard deviation is generally smaller than that of the first stage, some non-excluded

    results may differ from the robust mean by more than three robust standard deviations. That is, some non-

    excluded data may result in z-scores greater than 3 or less than 3.)

    A description of an iterative algorithm for computing robust means and standard deviations is provided in the

    next section. The process is tedious, but the estimates do have the following property which can easily be

    verified. If n results are included in the computation, and if all the results which differ from the robust mean

    by more than n1) - (n5.1 times the robust standard deviation are replaced by the robust mean.

    n1) - (n5.1 robust standard deviations, as appropriate. The mean of these trimmed results will equal

    the robust mean, and the standard deviation of the trimmed results will be .882 times the robust standard

    deviation.

    3

  • Calculation of Robust Mean and Robust Standard Deviation

    The Robust Mean and Robust Standard Deviation of a collection of n results are calculated by first finding

    the median of all test results and then finding each result' s absolute deviation from this median. An initial

    standard deviation for the reported results is determined by dividing the median of the absolute deviations by

    0.6745. This value is multiplied by a cutoff value ( n1) - (n5.1 ) and the result is added and subtracted

    from the median of the test results to arrive at initial upper and lower limits.

    For calculation purposes test results that fall within these limits are retained, and other results are adjusted to

    the nearest limit. A robust mean and robust standard deviation are calculated using this new set of values

    (Robust Mean = average of trimmed results; Robust Standard Deviation = standard deviation of results

    divided by 0.882). The robust standard deviation is compared to the initial standard deviation estimates

    determined above. If they are equal then record the values as the robust mean and robust standard deviation.

    If the standard deviations are not equal, then a loop process begins by utilizing the robust average and

    standard deviation to calculate a new set of upper and lower limits. This looping process continues until the

    robust standard deviation stabilizes from one iteration to the next. The resulting values are the Robust Mean

    and Robust Standard Deviation. The number of digits carried out in the loop process is one digit more than

    the reporting resolution of the test values.

    BAR GRAPHS are provided for each element and test sample. The "Y" scale represents the test results and

    "X" scale the laboratory codes. Each laboratory' s data is plotted, excluding outliers. Data that falls outside

    the scale of the graphs are indicated with an arrow in the bar. Horizontal lines are provided at the Overall

    Summary Robust Mean and average plus/minus one and two standard deviations. The bar graphs are

    organized by ASTM method.

    An XY Graphical presentation for each element determined in the samples is provided utilizing

    methodology developed by W. J. Youden and published in "Industrial Quality Control vol XV, No. 1, May

    1959" "Journal of Quality Technology". The article is titled "Graphical Diagnosis of Interlaboratory Test

    Results. A legend is provided in the graphs that identifies the ASTM method used.

    The Youden article points out that reported values can be expected to fall along a diagonal line from the

    lower left quadrant to the upper right quadrant. As used in this evaluation the position of a laboratory value

    along this line indicates a probable laboratory bias either positive or negative from the consensus value.

    Where a laboratory value point falls off this line into another quadrant in a significant way, the laboratory has

    an indication of a problem that needs to be corrected. The actual problem depends on the data point' s

    position.

    GENERAL COMMENTS: Any reported values of "< ", "> ", "0", or "nil" are not included in the

    statistics but are included in the tables as reported data.

    4

  • Alphabetical Listing of Laboratories

    Participating in CS241311 Chemical Analysis Plain Carbon (2ndQtr, 4thQtr)

    ASTM Proficiency Testing Program

    (Alphabetical list does not correspond to

    randomly selected lab codes published in the report)

    A.Q.C. S.R.L.

    NAPOLI, ITALY 80147

    AGENZIA DELLE DOGANE

    VIA DELL'ELETTRICITA N.19

    VENEZIA-MARGHERA, ITALY 30175

    AL EZZ DEKHEILA STEEL COMPANY

    ALEXANDRIA, EGYPT

    ALTA STEEL

    EDMONTON, AB CANADA T5J 2R3

    ANDEC S.A.

    PRIMER PASAJE 12C SE MZ 2009

    GUAYAQUIL, ECUADOR

    ARCELOR MITTAL STEEL, USA RIVERDALE

    RIVERDALE, IL 60827

    ARCELORMITTAL CLEVELAND

    CENTRAL RECEIVING -DOOR 40

    CLEVELAND, OH 44105

    ARCELORMITTAL LAZARO CARDENAS S.A DE

    C.V

    ZONA INDUSTRIAL

    LAZARO CARDENAS MICHOACAN, MEXICO

    60950

    ARCELORMITTAL PLATE LLC

    COATESVILLE PLANT-C/O CENTRAL STORES

    COATESVILLE, PA 19320

    ARCELORMITTAL STEEL USA INDIANA

    STA026

    EAST CHICAGO, IN 46312

    ARCELORMITTAL USA LLC

    MS 2-101

    EAST CHICAGO, IN 46312

    ARCELORMITTAL-USA BURNS HARBOR

    BURNS HARBOR, IN 46304-9745

    ARCELORMITTAL LAS TRUCHAS S.A. DE C.V.

    COL CENTRO LAZARO CARDENAS

    MICHOACAN, MEXICO 60950

    ARCELORMITTAL TUBARAO

    SERRA, BRAZIL 29163-970

    BELASTINGDIENST / DOUANE LABORATORIUM

    AMSTERDAM, NETHERLANDS 1043GN

    BRAMMER STANDARD CO

    HOUSTON, TX 77069

    CASTCO TESTING CENTRE LTD

    33 ON KUI ST

    FANLING, HONG KONG

    CHEMICAL TESTING SECTION, TAIWAN POWER

    RESEARCH INSTITUTE, TAIWAN POWER

    COMPANY

    TAIPEI, TAIWAN 100

    CHINA STEEL CORPORATION

    1 CHUNG KANG ROAD

    KAOHSIUNG, TAIWAN 81233

    CLARK LABORATORIES LLC

    BUILDING 9

    JEFFERSON HILLS, PA 15025

    CONSULTORIA Y PRUEBAS DE MATERIALES S A

    DE CV

    1099 A-1 COL MARGARITA SALAZAR

    SAN NICOLAS, MEXICO 66479

    DHS CBP

    SUITE 400

    CHICAGO, IL 60607

    DOFASCO

    GATE 15 DOOR 700

    HAMILTON, ON CANADA L8N 3J5

    DOOSAN HEAVY INDUSTRIES

    CORPORATE R

    CHANGWON GYEONGNAN, KOREA, REPUBLIC

    OF 642 792

    DRAGON STEEL CORPORATION

    TAICHUNG CITY, TAIWAN 434

    EMSL ANALYTICAL, INC

    CINNAMINSON, NJ 08077

    EPI MATERIALS TESTING GROUP

    THE WOODLANDS, TX 77380

    EMIRATES TECHNO CASTING

    SHARJAH, UNITED ARAB EMIRATES 41608

    EVRAZ OREGON STEEL

    RIVERGATE PORTLAND WORKS

    PORTLAND, OR 97203

    FIAT AUTO AGENTINA S A

    X592XAD

    CORDOAB, ARGENTINA

    FRANKLIN RESEARCH ASSOCIATES

    HOUSTON, TX 77065

    FUGRO TECHNICAL SERVICES LTD

    FUGRO DEVELOPMENT CENTRE

    HONG KONG, CHINA

    GALLATIN STEEL CO.

    GHENT, KY 41045

    GEOSCIENCE TESTING LAB

    DUBAI INDUSTRIAL CITY

    DUBAI, UNITED ARAB EMIRATES 61670

    GEOTECHNICS

    HUNG HOM, KOWLOON,

    HONG KONG, HONG KONG 852

    GERDAU

    MONROE, MI 48161

    GERDAU ACOMINAS S/A

    FAZENDA DO CADETE

    OURO BRANCO, MINAS GERAIS BRAZIL

    36420-000

    GERDAU AMERISTEEL - ARL #1

    MIDLOTHIAN, TX 76065

    GERDAU AMERISTEEL - ARL #2

    MIDLOTHIAN, TX 76065

    I L V A S P A

    TARANTO, ITALY 74123

    INTI REGIONAL CORDOBA

    CORDOBA CAPITAL, ARGENTINA 5000

    IKA LABORATORIES (2006) LTD.

    NESHER, ISRAEL 36601

    INDUSTRIAL SUPPORT SERVICES

    OPPOSITE TO DAMMAM TV STATION

    DAMMAM, SAUDI ARABIA 31463

    INSTITUTO COSTARRICENSE DE ELECTRICIDAD

    LAB. CORROSIN

    SUITE 506-2465

    MIAMI, FL 33126

    5

  • INTERFACE TECHNICAL INSPECTION

    RAS AL KHOR INDUSTRIAL AREA-2

    DUBAI, UNITED ARAB EMIRATES 78921

    ISRAEL INSTITUTE OF METALS

    HAIFA, ISRAEL 32000

    KEYSTONE STEEL & WIRE

    PEORIA, IL 61641

    KANSAS DEPT OF TRANSPORTATION

    BUREAU OF MATERIALS & RESEARCH

    TOPEKA, KS 66611

    LAB PROVE MAT S MARCO S R L

    SCHIO (VI), ITALY 36015

    LABORATORIO NACIONAL DE ENGENHARIA

    CIVIL

    LISBON, PORTUGAL 1700-066

    MAURITIUS STANDARDS BUREAU

    MOKA, MAURITIUS 230

    MME

    DACULA, GA 30019

    MTEC MECHANICAL TESTING SERVICES

    HOUSTON, TX 77064

    NLMK INDIANA

    PORTAGE, IN 46368

    NOVACERO

    LATACUNGA, ECUADOR 050150

    NUCOR STEEL

    DARLINGTON, SC 29540

    OVAKO HOFORS AB

    HOFORS, SWEDEN S-81382

    PAMA FUNDICAO

    RUA ALBINO DE RUSSI 434

    SERTOZINHO, BRAZIL 14176-150

    PROAQT EMPREENDIMENTOS TECNOLO

    OSASCO, BRAZIL 06093010

    PROMET METALS TESTING LABORATORY LTD

    INDUSTRIAL ESTATE TAI PO

    HONG KONG, HONG KONG 852

    PUBLIC WORK CENTRAL

    LABORATORY/CEDD/HONG KONG SAR

    KOWLOON, HONG KONG 999077

    QATAR STEEL COMPANY

    TECHNICAL DEPARTMENT

    DOHA, QATAR 50090

    REPUBLIC ENGINEERED STEELS

    CANTON STORE ROOM, LAB 2B

    CANTON, OH 44704

    REPUBLIC ENGINEERED STEELS

    LAB A

    CANTON, OH 44704

    RUUKI METALS OY

    RAAHE, FINLAND FI-92101

    S K F GMBH

    SCHWEINFURT, GERMANY 97419

    SAMPLE AND TEST MEXICO, S. A. DE C. V.

    COL SANTA MARIA LA RIBERA

    DISTRITO FEDERAL, MEXICO 06400

    SETSCO SERVICES PTE LTD

    SINGAPORE, SINGAPORE 608925

    SEVERSTAL INTERNATIONAL DEARBORN

    DEARBORN, MI 48121

    SGS-CSTC STANDARDS TECHNICAL SERVICES

    CO., LTD.

    GUANGZHOU, CHINA 510663

    SHENG YU STEEL CO LTD

    HSIAO KANG DIST

    KAOHSIUNG CITY, TAIWAN 81260

    SHIU WING STEEL LTD

    TUEN MUN

    HKSAR, HONG KONG 00000

    SIDERCA SAIC

    CAMPANA CITY 2804

    BUENS AIRES, ARGENTINA

    SILCOTUB

    ZALAU, ROMANIA 450131

    SKF FRANCE

    B.P. 239

    SAINT CYR SUR LOIRE 37540, FRANCE

    SKF INDUSTRIES SPA

    AIRASCA, ITALY 10060

    SKF PLYMOUTH

    PLYMOUTH, MI 48170

    STORE STEEL D.O.O.

    STORE, SLOVENIA S13220

    SUN-JET TECHNOLOGY & CONSULTING CO LTD.

    LUNG TAN HSIEN

    TAO YUAN HSIEN, TAIWAN

    T V A CENTRAL LABS SERVICES

    BLDG. A PSC 1B-C

    CHATTANOOGA, TN 37415

    TAIWAN ACCURATE TESTING LAB. CO., LTD.

    TAOYUAN, TAIWAN 338

    TENARIS DALMINE

    DALMINE (BG), ITALY 24044

    TENARIS DALMINE #2

    DALMINE (BG), ITALY 24044

    TERNIUM COLOMBIA PLANT

    SAN NICOLAS DE LOS GARZA

    NUEVO LEON, MEXICO 66452

    TERNIUM MEXICO S.A. DE C.V.

    APODACA LAB

    NUEVO LEON, MEXICO 66452

    TERNIUM MEXICO S.A. DE C.V.

    GUERRERO LAB

    NUEVO LEON, MEXICO 66452

    TERNIUM MEXICO S.A. DE C.V.

    PUEBLA LAB

    NUEVO LEON, MEXICO 66452

    TERNIUM SIDERAR LAB. QUMICO

    LABORATORIO DE ACERIA

    SAN NICOLAS, ARGENTINA B2900

    THE TIMKEN COMPANY - FSP

    MAIL CODE HSP-27

    CANTON, OH 44706

    THE TIMKEN COMPANY - HSP

    1835 DUEBER AVE. SW

    CANTON, OH 44706-0924

    THE TIMKEN COMPANY- HSP 2

    MAIL CODE: HSP-2

    CANTON, OH 44706

    THYSSENKRUPP STEEL

    CALVERT, AL 36513

    THYSSENKRUPP CSA

    RIO DE JANEIRO, BRAZIL 23560-352

    TITAN METALLURGY

    OAK PARK, MI 48237

    US STEEL CORP

    METALLURGICAL BLDG

    GARY, IN 46404

    USAPHC

    ATTN: BLDG E2100, MCHB-IP-QA

    APG, MD 21010

    6

  • UNION ELECTRIC STEEL CORP 31 UNION ELECTRIC ROAD

    BURGETTSTOWN, PA 15021

    USS - FAIRFIELD WORKS

    M/S IS&C

    FAIRFIELD, AL 35064

    V & M STAR OHIO

    YOUNGSTOWN, OH 44510-1033

    VALLOUREC SUMITOMO TUBOS DO BRASIL

    LABORATORIO QUMICO

    JECEABA, MINAS GERAIS BRAZIL

    VILLARES METALS S.A.

    R ALFREDO DUMONT VILLARES

    SAO PUALO, BRAZIL 13178 902

    WESTMORELAND MECHANICAL

    YOUNGSTOWN, PA 15696

    WIRETECH INC

    CITY OF COMMERCE, CA 90040

    YIEH UNITED STEEL CORP

    GANGSHAN DISTRICT

    KAOHSIUNG CITY, TAIWAN 82057

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    001 E415 -0.4 0.5 -1.0 0.6 -0.4 -0.3 -0.1 -0.1 0.6 -0.3 1.5 -0.4 0.8

    002 E1019 -0.5 -0.7

    Other 0.7 -0.8 -1.4 1.3 0.8 0.5

    003 E1019 -0.4 -0.2 -0.3

    E415 -0.5 2.0 -0.7 -0.2 0.1 -0.8 -0.5 0.0 -0.3 -0.5 -0.6

    004 E415 -1.2 -1.6 -1.7 1.5 -0.9 -2.5 -2.3

    005 E415 0.8 2.5 0.5 0.3 -1.0 -1.3 -1.2 1.7 0.0 -2.1 2.3 0.2 1.8 -0.9 1.3

    006 E1019 -0.3 0.7 -1.6

    ICP -3.1 -1.2

    Other -1.7 0.4 1.3 -0.3 -0.7 1.0 0.4 -0.3 -0.1

    007 E1019 -0.6 -1.9

    E1085 0.5 -1.2 1.7 -0.5 -2.1 1.7

    E415 0.5 1.6 -0.1 3.4 0.6 0.7 2.0 -3.1 -0.5 -2.3 1.8

    008 E1019 -0.8 -0.1 1.0

    E415 1.4 0.1 0.0 -0.8 -0.1 -0.8 0.4 -0.1 -1.2 0.2 -1.1 0.2 -1.9 1.3 -1.0

    009 E415 -0.4 -0.5 0.6 0.5 -1.7 0.8 0.9 1.0 -2.9 0.2 1.1 -0.1 1.3 0.7

    010 E1019 -1.8 1.2 -0.9

    E415 -0.9 -1.8 0.2 -0.2 -2.8 1.2 0.4 0.2 -0.9 0.8

    011 E1019 -0.2 -0.6

    E415 2.0 -0.5 0.1 0.0 0.1 -0.6 -1.4 -0.7 1.5 -1.1 -0.6 0.3 -0.2 0.2

    012 E1019 -0.1 0.7

    E415 0.8 1.0 -1.0 -2.1 -0.4 0.8 0.2 -0.2 -1.2 0.4 1.7 0.6 0.8

    013 E415 2.6 -0.4 -1.8 1.5 -0.2 -0.5 2.0 -0.9 -0.9 0.6

    014 E415 -0.9 -1.1 -0.1 1.0 0.8 1.8 -0.4 0.8 -0.2

    015 E1019 2.5 0.4 2.1

    E415 -0.7 -1.1 -0.5 -1.0 -1.2 0.5 -0.8 -1.6 0.9 -0.5 -2.4 -1.1 0.4

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    016 ICP 0.4 1.5 0.0 -1.2 -0.6

    Other -2.9 0.8 -2.6 -2.3 -0.2 -1.3 0.4 -0.6 0.9

    017 E1019 0.4 0.0 -1.9

    E415 0.3 0.8 0.0 0.4 0.2 0.8 0.1 1.1 0.0 -0.4 0.5 -0.2 -0.8 0.0 0.2

    018 E1019 -1.0 0.6

    E415 0.2 -1.2 1.1 -1.4 -0.1 -1.4 -0.5 0.2 0.8 -0.7 0.6

    Other -0.3 0.4 3.2 -1.2 -0.3

    019 E1019 -0.8 -0.2

    E415 0.5 -1.1 0.7 -0.4 0.0 -2.0 -0.3 0.0 -0.2 -0.4 0.1 2.2 0.7

    020 E1019 0.4 -1.1 0.1

    E415 0.8 -0.1 -0.5 -0.7 0.6 -0.5 1.0 0.4 -0.9 1.6 1.1 0.6 1.3

    021 E1019 0.2 0.4 -0.8

    E1085 0.7 0.2 -0.6 0.6 0.2 0.4 -0.5

    E415 -0.4 -0.1 0.5 0.6 0.2 2.0 -0.6 0.2 0.4 0.5 0.2 -0.6 0.7

    022 E415 -0.4 2.0 0.0 2.7 2.3 0.4 -1.0 -1.9 -0.2 -0.9 0.1 1.3 0.8

    ICP 2.1 0.4 -1.2

    023 E415 -1.4 0.4 1.1 0.3 -0.3 0.3 -0.6 -0.5 0.2 1.0

    024 E1019 -0.4 0.6

    E415 -0.4 0.7 -0.1 0.9 -1.4 0.5 -0.6 -0.1

    025 E1019 0.7 0.7 -1.9

    E1085 0.0 -0.1 -1.8 -0.7 0.5 0.4 -0.3 2.7

    E415 0.2 -0.5 0.0 -1.5 -0.1 -0.8 -2.0 -0.4 -0.3 1.6 -1.1 0.4 0.0 -0.4 0.8

    026 E1019 -0.8 -0.9

    E415 -0.6 -1.2 -1.0 -0.1 0.4 0.0 -0.1 -0.1 0.0 0.5 0.0 0.6 -0.1 0.0

    027 E415 0.8 -1.2 0.1 1.6 -0.2 0.8 -0.9 -0.1

    028 E1019 -2.3

    E415 1.4 -0.9 1.3 1.0 1.1 -0.9 -2.3 -1.9 0.6 -1.0

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    029 E1019 -1.5

    E1085 -0.3 -0.9 -1.4 -0.3 -0.9

    E415 -0.9 1.3 1.5 -0.4 1.5 -0.9 1.1

    030 E1085 0.8 1.3 -0.6 0.1 -0.2

    E415 -0.3 -0.7 0.8 0.8 -0.4 -0.8 -1.3 -0.2 -0.5 -1.6 -1.0

    031 E1019 0.4 0.5

    E415 -1.4 0.4 -0.4 -0.2 -0.3 -0.1 -1.2 -1.3 0.0

    032 E1019 0.9 0.4 -0.1

    E1085 -0.1 -1.0 -1.4 -0.4 -0.6

    E415 0.2 0.0 0.0 1.3 0.9 0.5 -2.5 -0.7 -0.3 0.2 0.7 0.2 -0.5 0.7 0.5

    033 E415 -0.8 -2.1 0.8 -0.1 2.2 -1.1 0.3 0.2 1.6 -2.3 -1.3 -1.8

    034 E1019 -0.1 0.3 0.6

    E415 -0.4 1.1 0.7 0.2 0.9 -0.6 -0.3 0.6

    035 E415 -3.2 0.2 1.1 -0.5 -0.5 -1.5 -2.0 -0.3 0.5 -1.2 -1.0 -0.2

    036 E1019 -0.2 0.6

    E415 -0.9 0.2 0.9 0.4 0.9 1.1 0.5 1.0 -0.2 0.6

    037 E415 -0.6 0.9 -1.0 1.4 -0.1 0.0 1.3 0.2 1.3 -0.2 0.3 0.0 0.3 1.8 0.3

    038 E1019 -0.1 -0.1 0.5

    E415 0.2 -0.2 0.0 0.1 -0.4 -0.3 0.2 -0.3 0.2 -0.2 -0.1 0.0 0.4 -0.5

    039 E415 0.8 1.8 -1.2 -1.3 1.3 -0.9 -2.0 0.6 0.9 -0.9

    040 E1019 -0.1 1.0 -0.1

    E415 0.2 0.8 -1.0 0.5 -0.1 0.7 -0.5 -0.2 2.2 -0.5 1.0

    041 E415 -0.3 1.4 -0.5 1.1 1.6 2.5 0.7 -0.9 0.9 -0.1 -1.3 0.0 0.1 -0.1 1.7

    042 E1019 0.6 -0.8 0.6

    E415 1.5 0.1 -0.4 -0.7 -0.1 0.3 0.4 0.0 -0.2 -0.6 -0.1 1.5 -0.3

    043 E1019 -1.4 -1.5 -0.1

    E415 0.8 0.5 0.8 -0.4 0.5 1.8 0.5 0.4 0.9 0.6 0.8

    10

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    044 E1019 0.4 0.0 -1.8

    E1085 1.8 -1.2 1.2 -0.7 -0.9 -0.8 -0.8 0.4

    E415 0.6 1.1 -0.5 -0.3 -1.1 -0.2 -0.9 0.6 1.1 0.2 1.2 0.6 -0.2 -0.9 -0.2

    Other 3.2

    045 E1019 0.7

    E415 1.2 0.6 0.1 -1.2 0.3 0.0 -1.7 1.9 -0.2 -1.1

    046 Other 3.0 -0.2

    047 E1019 0.8 -0.1

    E322 -0.9 -2.1 -0.5 0.9

    048 E1019 -1.0 -0.2 -0.9

    E415 0.8 -0.3 -1.2 -0.4 1.1 -0.9 0.6 -0.9

    ICP 0.8 -0.2 -1.2 -0.2 -0.9

    049 E1019 -0.2 1.1

    E415 -0.4 2.0 0.2 0.4 1.0 0.5 1.3 -0.5 -0.7 0.9 0.1 0.8 -0.2

    050 E415 2.0 -1.3 1.8 0.6 -0.7 0.5 1.0 2.3 -0.9

    051 E415 -1.5 -1.0 -2.0 -1.6 -0.3 1.9 -0.9 -0.2 0.9 -0.8 -1.7 2.6 -1.0

    052 E415 2.9 -1.2 1.1 3.1 -2.1 -0.1

    053 E415 1.3 -0.4 0.5 -1.4 2.7 -3.3 1.8 0.9 -0.3 -1.1 -1.7 0.0 -0.5 0.4 -2.3

    054 Other 1.9

    055 E415 1.4 0.4 0.4 1.1 1.5 1.0 -1.3 -1.0 1.4 3.0

    056 E1019 -0.3 0.5 0.4

    E1085 -0.1 -2.0 -0.2 -0.7 -0.6 0.4 -0.9

    E415 -0.9 -0.5 -1.0 -0.2 -1.2 -0.8 -0.9 -1.0 -0.7 -0.6 -0.9 0.7 -0.1 -0.2

    057 E1019 0.7 -0.1 -0.9

    E1085 -0.7 -0.4 -0.4 -0.9 -0.6 0.2

    E415 -0.4 0.5 -0.3 -0.8 -0.4 -0.1 0.6 -2.1 -0.9 -0.9

    058 E1019 0.9 -0.3 -1.6

    11

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    058 E415 -0.9 -0.5 0.0 -0.3 -1.2 0.4 -1.0 -0.3 -0.6 -0.5 -0.1 -0.8 1.3 0.5

    059 E415 -0.9 0.0 -0.5 -0.5 -1.1 -0.6 -1.0 -0.5 0.9 0.2 -0.9 0.3 0.2 -0.8

    060 E415 0.2 0.1 2.0 0.1 0.5 0.4 -0.5 -0.3 1.0 -0.2 -0.2 -1.3 -2.7

    061 E1019 -0.1 0.7 0.7

    E415 -1.5 -0.1 0.9 -0.7 -0.1 -0.6 0.4 0.5 -0.6 0.4 1.2 1.2

    062 E415 0.9 -1.4 0.0 2.3 1.7 -0.6 1.8 0.6 1.3 0.9 0.0 0.0 -1.4 1.0

    063 E415 0.2 3.2 -0.4 -2.1 0.8 -0.9 -1.4 0.4 -0.1 -1.6 -0.8

    064 E1019 0.0 0.3 -0.1

    E415 -0.1 -0.4 -1.0 -1.0 -0.3 -0.2 0.4 0.1 -0.7 -0.2 -0.2 -0.3 -0.3 -0.5

    065 E415 1.4 -0.6 -1.2 0.8 0.4 -0.2 0.6 3.1 0.2 1.8 -0.1

    066 E415 -0.9 0.2 0.4 -1.0 0.9 -0.9 1.2 -0.8 -0.9 -0.5

    Other -0.1 0.2 0.2 -0.4 0.4 -1.7 -0.8 -1.9 -0.4

    067 E1019 -0.6 1.0 -2.3

    E415 0.8 -1.0 -0.5 1.0 0.5 0.7 1.2 0.9 1.6 -0.1 0.7 -0.3

    068 E1019 1.0

    E415 -0.2 0.0 -1.5 1.2 0.5 -1.6 1.9 -0.3 0.2 2.7 -1.6 1.1 1.3 0.1 -1.0

    069 E1019 0.9 0.2

    E415 1.5 0.6 -2.0 0.8 0.8 -0.2 0.3 -0.7 0.0 1.6 0.2 0.1 -0.4 0.3 0.7

    070 E1019 -0.8

    E415 0.9 0.8 1.0 2.2 0.8 0.5 1.8 -0.1 1.8 0.7 -0.5 0.6 -0.3 2.1

    ICP 2.0 1.4 -2.1

    071 E1019 -0.2 -0.2 -0.9

    E415 0.2 0.2 -0.5 -0.4 -0.7 0.5 -0.4 -0.2 0.2 0.2 -0.2 0.0 -0.6 -0.9 -0.7

    072 E415 -2.1 -2.1 -1.0 -0.7 2.6 -0.9 -1.4 -0.7 -0.2 -1.9 1.9 2.0 -3.3

    Other -1.2 -1.7 -0.4 -3.1 -0.4 -0.7 -2.0 -0.5 -0.9 2.2

    073 E415 -2.3 2.7 1.2 -1.4 1.0 0.1 0.3 0.6 0.2 1.2 -0.8

    074 E1019 -0.3 0.7 -0.7

    12

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    074 E415 0.2 0.5 0.1 -0.2 0.3 0.5 -0.8 0.2 0.0 0.0

    075 E1019 0.1 -0.2 -0.9

    E415 1.6 1.5 -0.1 -0.7 -0.3 0.2 -4.0 0.4 -0.7 1.3

    076 E415 0.2 0.8 -2.0 -2.3 -1.3 0.8 -0.6 0.2 -1.9 -0.6 -2.5 0.4 -0.9 1.3 -0.8

    077 E415 1.0 0.6 -0.8 1.0 -0.2 1.8 2.4 1.3 2.2 0.9 0.8 -1.1 1.0

    078 E415 -1.0 -2.5 0.0 0.1 0.2 -1.5 0.3 0.2 -0.6 -2.2 1.0 -0.4

    079 Other -0.3 0.3 -0.1 0.3 -0.3 -0.2 -0.2 2.4 -0.2 0.6 0.0

    080 Other -0.2 -0.6 0.4 -2.8 -0.6 0.7 0.1

    081 E415 2.5 0.6 0.7 1.0 0.2 -1.3 1.0 0.0

    082 E1019 0.3 0.7 -0.5

    E1085 -0.6 -2.0 -0.5 -0.9 -0.2 1.2

    E415 -1.8 -1.0 -1.5 -0.3 -2.0 -1.0 -0.6 -0.5 0.2 -0.6 0.4 -0.4 1.0 -0.2

    083 E415 0.8 -0.8 -0.9 2.9 0.5 -0.9 1.3

    084 E1019 0.3

    E415 -0.4 0.0 1.2 0.1 0.0 -0.9 0.9 1.1 -0.2 0.4 0.2 -0.6 -0.3

    085 E415 0.1 -1.0 0.4 -2.2 -0.1 2.6 -1.2 0.5 2.9 0.4 1.2 0.1 0.8

    086 E415 0.8 1.1 0.4 0.1 -1.4 0.2 1.6 -0.1

    087 E415 -2.1 0.5 -0.9 -1.0 0.7 -0.1 -0.7 -0.6 -2.1 -3.0

    088 E1019 0.3 1.9 0.9

    E415 0.1 -0.2 -1.5 0.7 0.0 -0.5 0.1 0.7 0.5 -0.1 -0.4 0.7 0.4 0.2

    ICP -0.4 -0.2 -0.2 -1.2 1.3 0.4 1.3 -0.7

    089 E322 -0.1 1.0 0.7 -3.2

    E415 0.0 0.8 -2.0 -1.2 -0.8 0.4 -3.2 -2.1 2.0 -1.5 -1.0 -2.1 -0.1 -0.8

    090 E1019 -2.0

    E415 -0.9 0.2 -1.3 -0.1 0.0 -2.0 0.2 0.0 0.9 0.2 -1.9 0.3 -0.7

    091 E415 -0.5 1.5 0.0 2.1 -0.3 0.1 0.0 0.4 1.3 1.7 -0.2 1.7 -0.4 0.7

    092 E415 -0.8 1.5 -0.6 1.3 0.1 -1.3 1.7 0.4 0.4 -0.6 1.5 -0.8

    13

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L1

    093 E415 0.2 0.8 -0.7 -0.4 1.1 -1.4 1.6

    094 E1019 -0.1 0.0 1.3

    E415 -0.4 0.9 0.2 -0.4 1.1 0.6 0.5 1.2 0.6

    095 E1019 0.2

    E415 0.8 0.8 0.5 -0.7 0.3 -1.3 -0.7 2.0 0.3 -0.9 0.2 0.8

    096 E415 0.5 0.9 -0.1 1.0 0.6 0.9 0.2 1.8 -0.5

    097 E1019 -0.3 0.0 -1.1

    E415 0.2 0.8 -0.5 0.1 0.1 0.9 -0.1 1.2 1.1 0.9 -0.3 1.4 0.8 -0.9 0.8

    098 E415 0.2 0.1 0.2 -0.6 0.9 2.4 -1.6 -1.6 1.1 0.6

    099 E415 -2.1 -0.5 2.0 1.3 1.0 0.8 -1.2 1.5 2.2 1.3 1.7 0.4 -0.1 0.6 -0.8

    100 E1019 0.1 -0.2 0.2

    E1085 0.8 -0.4 0.0 0.0 0.2 -1.5 -0.2 0.0

    E415 0.5 1.2 -1.0 2.0 0.0 0.0 0.2 0.8 0.4 0.2 1.8 -0.1 -0.1 0.4 -0.3

    Other 0.2

    101 ICP -0.4 0.1 0.4 0.0 -0.5 -0.5

    Other 0.0 0.3 -1.4 -0.1

    102 E415 -0.5 1.0 0.7 0.8 -0.8 -0.6 0.9 0.0 0.2 0.1 0.0 -0.1 -0.3

    103 E415 0.2 -1.0 1.0 -0.1 -1.0 0.0 0.9 1.6 0.2 -0.1

    104 E1019 0.2 -2.2

    E415 0.6 1.8 -1.1 2.6 0.7 0.1 0.1 -2.1 0.3 -2.0 -1.6 0.4 1.3

    14

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    001 E415 -0.8 0.5 -0.5 -1.1 -0.3 -0.8 -0.9 0.1 0.4 0.4 1.5 -0.2 -0.8 0.3

    002 E1019 -0.4 -0.9

    Other 0.7 -1.0 -0.3 0.6 -0.3

    003 E1019 0.7 0.2 0.3

    E415 -0.5 0.3 -0.9 0.4 -1.1 -1.0 -0.3 -0.7 -0.2 0.5 1.2 -0.4

    004 E415 0.4 -1.5 -1.7 0.6 -1.3 -2.7

    005 E415 0.9 2.6 -1.8 -1.1 -1.8 -1.1 1.9 -0.1 -1.3 -1.8 0.2 1.9 0.8 1.0

    006 E1019 -0.4 0.4

    ICP -1.3 -0.5

    Other -1.3 0.5 1.6 0.0 -1.2 -1.1 -0.5 0.1 -0.2

    007 E1019 0.3

    E1085 1.0 1.0 1.6 1.2 -1.3 0.9

    E415 0.2 -0.3 0.7 2.8 -0.4 0.2 1.1 0.2 -0.8 0.1

    008 E1019 -0.5 -0.9 0.3

    E415 1.5 -0.1 -0.5 0.2 -0.9 0.4 -0.2 -1.7 0.4 -2.6 0.4 -2.1 1.0 -0.9

    009 E415 -0.1 0.6 0.6 -1.4 1.0 0.8 1.4 -2.5 -0.2 1.1 -0.1 0.5 0.3

    010 E1019 -1.4 -0.7 1.4

    E415 -0.8 -1.4 -1.7 -0.2 -0.9 2.3 -0.7 -0.5 -0.8 1.0 0.3

    011 E1019 -0.4 -0.5

    E415 2.5 2.9 0.0 0.1 0.4 -0.9 -1.3 0.1 0.3 -2.0 -2.0 0.3 -0.6 0.3

    012 E1019 0.3 1.5

    E415 1.5 -0.7 -2.2 -0.5 1.0 0.3 0.4 -1.7 0.8 1.7 0.5 0.3

    013 E415 2.1 0.0 -2.5 1.0 -1.8 -1.2 0.9 -1.8 -0.8 -0.8

    014 E415 -0.6 -0.1 0.6 1.0 0.9 1.9 -0.6 -0.1 -0.3

    015 E1019 1.5 0.8 0.9

    E415 -0.6 -1.0 -1.0 -1.1 0.6 -0.2 -1.9 1.3 1.0 -2.0 -0.9 0.9

    15

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    016 ICP 0.1 2.2 -0.4 -0.1 -0.4

    Other 1.3 -0.8 0.3 -0.4 -1.5 0.5 0.1 0.5

    017 E1019 1.8 0.2 -1.3

    E415 0.5 0.5 -1.1 -0.4 0.9 -0.7 0.0 -0.8 -1.0 0.8 -0.8 -1.5 -1.1 -0.6

    018 E1019 -1.6 -0.6

    E415 -0.2 -1.2 0.9 -0.7 -0.5 -1.3 -0.8 0.4 0.6 0.8 1.0

    Other 0.2 0.4 -1.7 -2.1 -0.7

    019 E1019 -0.1 -0.5 2.0

    E415 0.3 -0.9 1.6 0.0 0.2 -2.3 0.3 0.6 0.0 0.5 0.4 1.3 1.2

    020 E1019 -0.2 -0.2 -0.4

    E415 0.6 -0.2 -0.5 0.4 -0.6 0.7 0.3 -1.0 1.0 1.3 0.3 1.2

    021 E1019 -0.5 0.6 -1.2

    E1085 -0.4 0.1 -0.7 0.6 -0.2 0.8 -0.7

    E415 -0.2 -0.1 0.2 0.3 1.8 -0.2 0.9 0.3 0.2 0.6 0.0 0.9

    022 E415 -0.2 3.1 2.3 0.4 -1.2 -1.9 -0.8 -0.5 0.0 2.0 0.3

    ICP 3.4 0.3

    023 E415 -1.5 0.9 1.2 0.3 -0.4 0.4 -0.6 -0.2 0.1

    024 E1019 0.4 0.3

    E415 -0.2 1.1 -0.5 2.2 -1.7 0.4 -0.7

    025 E1019 -0.1 0.2 -1.8

    E1085 -3.0 -0.2 -2.3 -0.3 -0.2 -0.5 -1.3

    E415 0.4 -0.5 -0.4 0.0 -0.9 -2.0 -0.4 -0.8 1.5 -1.7 -0.5 0.3 -0.6 0.3

    026 E1019 -1.3 -0.8

    E415 -0.5 -1.0 0.2 0.4 -0.7 -0.2 -0.3 0.1 -0.8 0.4 -1.3 0.8 -0.2

    027 E415 0.1 -1.1 -0.1 1.7 -1.9 3.8 -1.0 -0.4

    028 E1019 -0.8 -1.3 -2.2

    E415 0.9 -0.8 -0.9 0.5 0.3 -0.2 -1.3 -1.8 0.1 -2.2 -1.1

    16

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    029 E1019 -1.7

    E1085 -0.3 -0.8 -1.5 -0.3 -0.6

    E415 -0.8 1.2 -0.6 -0.5 2.1 -0.6 0.8 -1.4

    030 E1085 0.6 1.1 -0.6 -0.2 -0.3

    E415 -0.1 0.2 2.1 1.8 1.1 1.7 -0.6 1.2 0.4 0.7 0.2

    031 E1019 1.5 -0.7

    E415 -1.5 1.3 -0.1 0.4 -0.1 0.1 -0.2 -1.0 -1.2 -0.8

    032 E1019 0.7 0.4 0.3

    E1085 0.6 0.3 -1.7 -0.9 -1.1

    E415 0.6 -0.1 0.9 0.8 0.1 -0.2 0.4 -0.3 0.0 0.2 -0.2 0.0 -0.2 0.3

    033 E415 -0.8 -2.2 0.5 0.2 2.5 -1.0 0.2 -0.5 -4.3 1.5 -1.8 -1.1 -1.8

    034 E1019 0.5 0.2 -0.2

    E415 -0.2 0.5 0.4 0.3 1.0 0.0 -0.7

    035 E415 0.5 1.7 -0.4 -0.1 -2.0 -2.1 -1.0 0.6 -1.3 0.3 0.4

    036 E1019 -0.6 -0.5

    E415 0.4 -0.4 1.1 0.4 0.9 0.6 -0.4 0.4 0.3

    037 E415 -0.5 0.8 1.5 -0.2 0.1 0.1 -0.4 1.7 -0.4 0.0 -0.2 0.3 0.6 0.3

    038 E1019 -0.2 -0.2 0.1

    E415 0.4 -0.1 0.7 0.1 -0.3 0.4 0.2 0.3 -0.2 -0.1 0.0 0.5 0.0

    039 E415 0.9 1.0 -0.8 -1.6 1.2 -3.2 0.6 0.5 0.3

    040 E1019 -0.2 0.0 -0.8

    E415 0.4 0.4 0.0 -0.8 -0.2 -1.0 -0.2 0.8 -0.7 0.6

    041 E415 -0.3 1.5 1.8 2.5 2.6 1.0 -0.9 1.7 -0.2 -0.5 -0.1 0.1 -0.5 1.6

    042 E1019 0.5 -0.5 -0.1

    E415 2.0 0.2 -0.3 -0.4 -0.2 0.5 0.6 0.2 0.4 -0.4 0.2 0.6 0.1

    043 E1019 -2.2 -0.5 -0.8

    E415 0.9 -0.1 -2.6 0.7 -0.8 -0.5 0.3 0.4 -0.5 0.1 -0.8 0.3

    17

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    044 E1019 -1.9 0.0 -1.2

    E1085 2.1 -1.7 1.3 -1.0 -1.3 -1.2 -1.3

    E415 0.9 1.4 1.2 -0.5 0.2 -1.1 1.5 1.4 0.4 2.3 1.2 0.1 0.6 0.6

    Other 1.6

    045 E1019 0.2

    E415 0.5 0.6 0.1 -0.7 0.3 -0.2 -0.6 1.5 -0.1 -0.5

    046 Other 1.1 0.2

    047 E1019 0.0 2.0

    E322 -0.4 -2.0 -1.0 0.9

    048 E1019 -0.5 -0.2 -0.8

    E415 0.4 0.1 -1.4 0.3 1.4 -0.8 0.4

    ICP 0.9 0.2 -1.1 0.6 -0.8

    049 E1019 -0.1 0.2

    E415 -0.4 0.1 0.3 1.6 0.5 0.1 -0.6 0.4 0.4 0.5 0.9 0.1

    050 E415 2.7 0.9 0.3 1.3 0.7 -0.5 0.2 0.8 2.7 -1.2

    051 E415 -1.4 -0.4 -2.0 0.2 0.0 -1.7 0.0 0.6 -0.6 -0.3 0.2 -0.9

    052 E415 -0.1 -1.1 -0.5 0.3 0.4 -0.5 1.6

    053 E415 1.1 -0.5 0.1 -3.4 2.2 1.4 0.3 0.2 -1.8 0.0 -0.2 2.3 -1.5

    054 Other 2.2

    055 E415 1.2 0.5 0.3 1.1 0.7 1.0 -0.6 -0.8 2.0 -2.4

    056 E1019 -0.8 0.2 1.2

    E1085 1.3 -2.3 -0.3 -1.4 -1.1 0.8

    E415 -1.4 -0.5 0.4 -0.8 -0.9 -0.8 -1.1 -0.5 -0.4 -0.5 -0.2 0.1 0.1

    057 E1019 0.7 0.2 0.9

    E1085 -0.5 -0.8 -0.2 -1.4 -0.2 -0.3

    E415 -0.2 0.5 -0.3 -0.2 0.7 1.2 -1.5 -0.3 0.6

    058 E1019 -0.1 -0.3 -1.2

    18

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    058 E415 -0.8 -0.5 -0.2 -0.8 1.0 -0.8 -0.3 -1.1 0.0 0.0 -0.8 1.0 0.9

    059 E415 -0.8 0.0 0.8 -1.4 -0.2 0.0 -0.8 1.1 0.6 -0.5 0.6 -0.5 -1.2

    060 E415 0.1 0.1 1.7 -0.1 0.7 0.1 -0.9 -0.9 0.2 -0.4 -0.6 -0.2 -2.3

    061 E1019 1.1 1.0 1.4

    E415 -0.8 -0.1 1.2 0.6 -0.5 1.0 -0.1 -0.6 1.7 0.9 -1.3 -0.4 -0.9

    062 E415 1.3 -1.2 1.5 1.8 -0.4 1.6 0.6 0.6 1.1 -0.1 -0.2 -1.5 1.0

    063 E415 -0.2 3.2 -1.3 -2.6 0.7 -1.7 -2.3 -0.5 -1.3 -1.2

    064 E1019 -1.4 0.6 -0.8

    E415 -0.4 -0.2 -1.0 -0.4 0.1 0.4 -0.3 -0.3 -0.2 -0.2 -1.1 -2.0 -0.3

    065 E415 0.9 0.1 -0.5 -1.2 0.1 0.3 0.6 3.0 0.4 1.6 -0.5

    066 E415 -1.0 0.8 0.7 -0.6 0.3 -1.3 1.9 -0.5 -1.1 0.2

    Other -0.1 -0.3 0.4 -0.4 0.3 -1.3 -0.6 -0.8 0.1

    067 E1019 -1.5 0.4 -1.3

    E415 0.9 -0.9 0.1 0.4 0.1 -0.4 -0.1 0.2 -0.1 0.3 -0.8

    068 E1019 0.0

    E415 -0.1 0.4 0.6 0.7 -1.5 1.8 -0.2 0.8 2.1 3.1 1.2 1.3 0.5 0.0

    069 E1019 1.5 0.2

    E415 1.4 0.8 1.3 0.9 -0.1 0.5 -0.5 -0.1 1.9 0.0 0.0 -0.5 -1.1 0.9

    070 E1019 -0.9

    E415 0.9 0.5 1.3 0.9 0.5 1.3 -0.4 1.2 0.9 -2.0 0.2 -0.8 0.6

    ICP 2.1

    071 E1019 -0.4 -0.5 0.2

    E415 0.4 0.4 0.0 -0.3 0.7 -0.2 0.4 0.6 0.2 0.2 -0.1 -0.7 0.1 -0.2

    072 E415 -1.4 -2.2 -0.8 -0.2 2.3 -0.2 -1.1 -0.3 0.9 -1.5 3.1 -2.7

    Other -2.3 -0.2 -1.2 0.1 -2.6 0.3 -0.9 -1.5 0.2 -2.6 2.4

    073 E415 -2.4 0.3 1.2 -0.9 1.4 0.3 0.0 1.0 0.6 3.0 -0.5

    074 E1019 0.2 0.6 -0.5

    19

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    074 E415 0.5 0.5 0.5 -0.4 0.0 0.4 0.0 0.1 0.0 0.1

    075 E1019 0.1 -2.4

    E415 2.1 1.8 1.0 -0.2 0.0 0.2 -0.5 0.8 -0.2 0.3

    076 E415 0.4 0.8 -1.3 -1.1 0.7 -0.2 0.6 -2.1 -1.3 -1.8 0.8 -1.0 3.4 -1.2

    077 E415 1.3 1.0 -1.0 0.6 0.4 1.6 1.6 1.2 1.7 0.8 0.8 -0.1 2.2

    078 E415 -1.3 -2.6 0.4 -0.3 -3.3 1.1 -0.3 1.3 -2.7 -1.7 -2.4 1.5 -0.5

    079 Other 0.4 0.2 0.4 0.1 0.7 0.8 0.0 -0.5 2.2 0.4 -0.1 0.0

    080 Other -3.2 0.1 -0.8 -0.2 1.9 0.0 0.6 -0.4

    081 E415 1.5 0.6 0.7 0.7 0.1 1.3 1.0 0.3

    082 E1019 -0.5 -0.2 -1.2

    E1085 -1.8 -2.3 -0.9 -1.4 -1.3 1.1

    E415 -1.7 -0.9 -1.1 -1.9 -0.9 -0.8 -0.5 0.6 -0.2 -0.2 -0.8 0.8 -0.8

    083 E415 -0.9 -1.7 3.0 1.1 2.0 1.1

    084 E1019 0.8

    E415 -0.2 1.3 -0.3 0.2 -0.8 1.0 1.0 -0.4 0.4 0.1 0.1 0.0

    085 E415 0.2 -0.3 -2.3 0.1 2.8 -1.9 0.0 0.0 1.9 -0.1 1.8

    086 E415 0.4 1.5 1.0 0.5 -1.7 0.2 0.6

    087 E415 -2.0 -1.8 -1.3 0.1 -0.4 -0.5 1.3 -2.7 -3.4

    088 E1019 -0.4 1.4 0.9

    E415 0.0 -0.4 -0.2 -0.5 -0.3 -0.4 -0.1 -0.2 0.0 -0.6 0.0 0.3 -0.2

    ICP -0.2 -0.2 -0.6 -1.1 0.3 0.1 2.0 -0.3

    089 E322 0.1 0.1 -2.5 -2.8 1.3

    E415 0.2 0.8 -1.6 -1.3 -0.7 0.7 -3.1 -2.1 0.9 -2.4 -0.9 -1.9 0.6 0.3

    090 E1019 -1.5

    E415 -1.4 0.4 -0.5 0.4 -0.3 -2.0 1.0 0.3 1.5 0.0 -1.6 1.1 -0.6

    091 E415 -1.5 0.4 2.3 -0.3 0.7 0.0 0.3 1.0 3.8 0.6 0.7 0.3 1.0

    092 E415 -0.8 -0.4 1.4 0.4 -1.4 1.7 0.6 2.4 0.8 -0.2 3.4 -0.2

    20

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    ASTM Proficiency Test Program - Chemical Analysis Plain Carbon Steel

    Z Score Summary Sample 4Q13L2

    093 E415 -0.2 -0.3 -0.7 0.4 2.9 0.6 1.2

    094 E1019 0.4 -0.5 0.2

    E415 -0.2 0.7 -0.2 -0.5 0.8 -0.3 1.1 0.6

    095 E1019 0.2

    E415 0.9 0.8 0.0 0.7 -0.9 -0.8 0.9 1.0 -0.5 0.8 0.5 0.3

    096 E415 0.6 1.4 0.1 1.0 0.9 0.6 0.0 1.6

    097 E1019 -2.0 0.4 -2.0

    E415 0.4 0.4 -1.1 -0.6 0.7 -0.5 0.0 0.1 1.1 0.2 1.1 0.0 -1.5 -1.2

    098 E415 0.4 -0.7 -0.1 0.3 1.0 2.0 -1.8 1.1 1.0

    099 E415 -2.6 -0.5 0.0 0.6 0.7 -1.4 0.6 2.1 1.1 2.7 -0.5 -0.5 0.6 -2.7

    100 E1019 -1.0 -0.5 0.8

    E1085 0.7 -0.5 -0.1 -1.0 -0.8 -1.8 -0.5

    E415 0.6 1.4 1.0 -0.3 0.2 0.4 0.3 0.1 -0.2 1.7 -0.2 -0.2 -0.6 -0.3

    Other 0.1

    101 ICP -0.4 0.1 0.5 0.4 -0.6 -0.3

    Other -0.4 -0.2 -1.2 -0.4

    102 E415 -0.5 0.2 0.7 -0.6 -0.8 0.8 -0.3 0.2 0.0 0.1 -0.9 -0.3

    103 E415 0.4 -1.1 1.0 0.1 -0.9 -0.3 0.4 0.8 1.7 0.6

    104 E1019 0.5 -1.2

    E415 0.8 2.5 0.0 2.9 0.7 0.3 0.6 0.9 1.4 -1.9 -1.5 1.5

    21

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Aluminum

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.8 -0.4 001 0.025 0.028 -0.5 -0.5 003 0.0248 0.0285 0.9 0.8 005 0.027 0.031 0.2 0.5 007 0.0264 0.0297 1.5 1.4 008 0.028 0.032 -0.1 -0.4 009 0.0250 0.0292 -0.8 -0.9 010 0.024 0.028 2.5 2.0 011 0.0291 0.0336 1.5 0.8 012 0.027 0.032 2.1 2.6 013 0.030 0.033 -0.6 -0.9 014 0.0241 0.0283 -0.6 -0.7 015 0.0244 0.0283 0.5 0.3 017 0.0261 0.0303 -0.2 0.2 018 0.0259 0.0291 0.3 0.5 019 0.0265 0.0299 0.6 0.8 020 0.0269 0.0305 -0.2 -0.4 021 0.025 0.029 -0.2 -0.4 022 0.025 0.029 -1.5 -1.4 023 0.0233 0.0269 -0.2 -0.4 024 0.025 0.029 0.4 0.2 025 0.026 0.030 -0.5 -0.6 026 0.0246 0.0286 0.9 1.4 028 0.028 0.031 -0.8 -0.9 029 0.024 0.028 -0.1 -0.3 030 0.0251 0.0293 -1.5 -1.4 031 0.0232 0.0269 0.6 0.2 032 0.026 0.0304 -0.8 -0.8 033 0.0243 0.0281 -0.2 -0.4 034 0.025 0.029 -3.2 035 0.0202 ** 0.0237 0.4 -0.9 036 0.024 0.030 -0.5 -0.6 037 0.0245 0.0285 0.4 0.2 038 0.026 0.030 0.9 0.8 039 0.027 0.0310 0.4 0.2 040 0.026 0.0301 -0.3 -0.3 041 0.0251 0.0289 2.0 1.5 042 0.0282 0.0328 0.9 0.8 043 0.027 0.031 0.9 0.6 044 0.0267 0.0309 0.5 1.2 045 0.0276 0.0302 0.4 0.8 048 0.027 0.030 -0.4 -0.4 049 0.0250 0.0287 2.7 2.0 050 0.029 0.034 -1.4 -1.5 051 0.0230 0.0271 1.1 1.3 053 0.0278 0.0313 1.2 1.4 055 0.0280 0.0314 -1.4 -0.9 056 0.024 0.027 -0.2 -0.4 057 0.025 0.029

    22

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Aluminum

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.8 -0.9 058 0.024 0.028 -0.8 -0.9 059 0.0240 0.028 0.1 0.2 060 0.0259 0.0296 -0.8 -1.5 061 0.023 0.028 1.3 0.9 062 0.0272 0.0316 -0.2 0.2 063 0.026 0.029 -0.4 -0.1 064 0.0254 0.0288 0.9 1.4 065 0.028 0.031 0.9 0.8 067 0.027 0.031 -0.1 -0.2 068 0.0253 0.0293 1.4 1.5 069 0.0281 0.0317 0.9 0.9 070 0.0271 0.0309 0.4 0.2 071 0.026 0.030 -1.4 -2.1 072 0.022 0.027 -2.4 -2.3 073 0.0217 0.0254 0.5 0.2 074 0.0259 0.0302 0.4 0.2 076 0.026 0.030 1.3 1.0 077 0.0273 0.0316 -1.3 -1.0 078 0.0239 0.0272 -1.7 -1.8 082 0.0225 0.0265 083 ** 0.015 ** 0.016 -0.2 -0.4 084 0.0249 0.0291 0.2 0.1 085 0.0258 0.0298 0.4 0.8 086 0.027 0.030 -2.0 -2.1 087 0.022 0.026 0.0 0.1 088 0.0258 0.0294 0.2 0.0 089 0.0256 0.0298 -1.4 -0.9 090 0.024 0.027 -1.5 -0.5 091 0.0247 0.0268 -0.8 -0.8 092 0.0243 0.0281 -0.2 0.2 093 0.026 0.029 -0.2 -0.4 094 0.025 0.029 0.9 0.8 095 0.027 0.031 0.6 0.5 096 0.0265 0.0305 0.4 0.2 097 0.026 0.030 0.4 0.2 098 0.026 0.030 -2.6 -2.1 099 0.022 0.025 0.6 0.5 100 0.0264 0.0304 -0.5 -0.5 102 0.0248 0.0286 0.4 0.2 103 0.026 0.030 0.8 0.6 104 0.0266 0.0308

    Robust Mean

    Robust Std. Dev

    0.0256

    0.0017

    0.0295

    0.0017

    23

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Aluminum

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    ICP

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    022 ** 0.003 ** 0.003 0.9 0.8 048 0.027 0.031 2.1 2.0 070 0.029 0.033 -0.2 -0.4 088 0.025 0.029 -0.4 -0.4 101 0.0250 0.0288

    Robust Mean

    Robust Std. Dev

    0.0265

    0.0022

    0.0305

    0.0022

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    Other

    Result Dev

    4Q13L1 4Q13L2

    046 EDXRF ** 0.058 ** 0.083 -2.3 072 ASTM E415 (OES) on ARL 3460 0.0203 0.0255 0.4 079 OES 0.026 0.030 -3.2 080 ISO 13898, 15350, 15351 ** 0.020 0.024

    Robust Mean

    Robust Std. Dev

    0.0292

    0.0164

    0.0265

    0.0035

    Overall Summary

    Robust Std.Dev

    Robust Mean

    Comment:

    ** Data which is asterisked is not included in statistical analysis.

    See report introduction for information.

    0.0256

    0.0017

    0.0294

    0.0017

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    24

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E415 ICP Other

    Method

    0.0205

    0.0222

    0.0239

    0.0256

    0.0273

    0.029

    0.0307

    8

    3

    3

    5

    7

    3

    9

    9

    7

    2

    8

    7

    8

    2

    6

    1

    5

    1

    3

    1

    2

    3

    7

    8

    5

    9

    5

    6

    3

    6

    2

    9

    5

    8

    1

    0

    9

    0

    1

    4

    9

    2

    3

    3

    1

    5

    3

    7

    2

    6

    9

    1

    3

    1

    0

    2

    8

    4

    9

    9

    4

    2

    1

    2

    2

    2

    4

    3

    4

    4

    9

    5

    7

    1

    4

    1

    3

    0

    6

    8

    6

    4

    8

    9

    8

    8

    8

    5

    7

    4

    1

    8

    6

    0

    1

    0

    3

    9

    8

    9

    7

    4

    0

    9

    3

    7

    6

    7

    1

    6

    3

    3

    8

    3

    2

    2

    5

    1

    7

    1

    0

    0

    7

    1

    9

    9

    6

    1

    0

    4

    4

    4

    2

    0

    3

    9

    8

    6

    9

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    1

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    1

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    Av

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    Lab code

    ASTM Proficiency Test Program - Aluminum Sample ID :4Q13L1

    25

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E415 ICP Other

    Method

    0.0243

    0.026

    0.0277

    0.0294

    0.0311

    0.0328

    0.0345

    8

    3

    3

    5

    9

    9

    7

    3

    8

    7

    8

    2

    9

    1

    3

    1

    2

    3

    9

    0

    7

    2

    5

    6

    5

    1

    7

    8

    6

    1

    5

    9

    1

    0

    2

    9

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    8

    1

    9

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    3

    3

    1

    4

    1

    5

    3

    7

    3

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    6

    1

    0

    2

    4

    9

    6

    4

    4

    1

    3

    4

    6

    3

    2

    2

    2

    1

    9

    4

    9

    3

    2

    4

    5

    7

    8

    4

    1

    8

    9

    6

    8

    3

    0

    8

    8

    6

    0

    7

    8

    9

    8

    5

    1

    9

    2

    5

    7

    6

    7

    1

    4

    8

    3

    8

    3

    6

    8

    6

    1

    0

    3

    9

    8

    9

    7

    4

    0

    7

    4

    4

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    1

    7

    3

    2

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    0

    0

    9

    6

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    0

    1

    0

    4

    4

    4

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    2

    8

    6

    7

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    5

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    2

    7

    7

    6

    9

    8

    1

    2

    4

    2

    1

    3

    1

    1

    5

    0

    2

    2

    1

    0

    1

    8

    8

    4

    8

    7

    0

    8

    0

    7

    2

    7

    9

    4

    6

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Aluminum Sample ID :4Q13L2

    26

  • Average

    Average

    Std. Dev

    2 Std. Dev

    0.0243

    0.026

    0.0277

    0.0294

    0.0311

    0.0328

    0.0345

    0.0205 0.0222 0.0239 0.0256 0.0273 0.029 0.0307

    Sam

    ple

    ID

    : 4Q

    13L

    2

    Sample ID: 4Q13L1

    ASTM Proficiency Test Program - Aluminum

    E415

    ICP

    Other Method

    27

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Arsenic

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    0.5 0.5 001 0.0048 0.0048 2.6 2.5 005 0.0064 0.0065 -0.1 0.1 008 0.0045 0.0043 009 ** 0.0075 ** 0.0075 2.9 011 ** 0.0075 0.0067 -1.0 -1.1 015 0.0035 0.0036 0.5 0.8 017 0.0050 0.0048 -0.9 -1.1 019 0.0035 0.0037 -0.2 -0.1 020 0.0043 0.0042 -0.1 -0.1 021 0.0043 0.0043 2.0 022 0.006 ** 0.009 -0.5 -0.5 025 0.004 0.004 -1.0 -1.2 026 0.0034 0.0036 031 ** 0.0016 ** 0.0013 -0.1 0.0 032 0.0044 0.0043 -2.2 -2.1 033 0.0027 0.0026 0.8 0.9 037 0.0051 0.0050 -0.1 -0.2 038 0.0042 0.0043 0.4 0.8 040 0.005 0.0047 1.5 1.4 041 0.0055 0.0056 0.2 0.1 042 0.0045 0.0046 1.4 1.1 044 0.0053 0.0055 -0.5 -0.4 053 0.0041 0.0040 -0.5 -0.5 056 0.0040 0.0040 -0.5 -0.5 058 0.0040 0.0040 0.0 0.0 059 0.0044 0.0044 0.1 0.1 060 0.0045 0.0045 -0.1 -0.1 061 0.0043 0.0043 -1.2 -1.4 062 0.0033 0.0034 3.2 3.2 063 0.007 0.007 -0.2 -0.4 064 0.0041 0.0042 -0.9 -1.0 067 0.0036 0.0037 0.4 0.0 068 0.0044 0.0047 0.8 0.6 069 0.0049 0.0050 0.5 0.8 070 0.005 0.0048 0.4 0.2 071 0.0046 0.0047 -2.2 -2.1 072 0.0027 0.0026 0.8 0.8 076 0.005 0.005 1.0 0.6 077 0.0049 0.0052 -2.6 -2.5 078 0.0024 0.0023 -0.9 -1.0 082 0.0036 0.0037 -0.4 -0.2 088 0.0042 0.0041 0.8 0.8 089 0.0050 0.0050 0.4 0.2 090 0.0046 0.0047 0.8 0.8 095 0.005 0.005 0.4 0.8 097 0.0050 0.0047 -0.5 -0.5 099 0.004 0.004 1.4 1.2 100 0.0054 0.0055

    28

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Arsenic

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    2.5 1.8 104 0.0058 0.0064

    Robust Mean

    Robust Std. Dev

    0.0045

    0.0008

    0.0045

    0.0008

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    ICP

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.2 -0.2 088 0.0042 0.0042

    Robust Mean

    Robust Std. Dev

    Result Dev

    Method

    Lab

    Code

    Other

    Result Dev

    4Q13L1 4Q13L2

    044 E1085 0.0041 0.0039 072 ASTM E415 (OES) on ARL 3460 0.0025 0.0025

    Robust Mean

    Robust Std. Dev

    Overall Summary

    Robust Std.Dev

    Robust Mean

    Comment:

    ** Data which is asterisked is not included in statistical analysis.

    See report introduction for information.

    E1085 is specified by this element, but is not in the scope.

    0.0044

    0.0008

    0.0044

    0.0008

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    29

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E415 ICP

    Other Method

    0.002

    0.0028

    0.0036

    0.0044

    0.0052

    0.006

    0.0068

    3

    1

    7

    8

    3

    3

    7

    2

    6

    2

    2

    6

    1

    5

    1

    9

    8

    2

    6

    7

    5

    8

    2

    5

    9

    9

    5

    6

    6

    4

    5

    3

    8

    8

    3

    8

    2

    0

    6

    1

    2

    1

    3

    2

    6

    8

    5

    9

    6

    0

    8

    4

    2

    9

    0

    7

    1

    1

    6

    9

    7

    7

    9

    7

    4

    0

    8

    9

    7

    6

    1

    7

    9

    5

    7

    0

    3

    7

    4

    4

    1

    0

    0

    4

    1

    1

    0

    4

    2

    2

    5

    6

    3

    1

    1

    9

    8

    8

    7

    2

    4

    4

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Arsenic Sample ID :4Q13L1

    30

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E415 ICP

    Other Method

    0.002

    0.0028

    0.0036

    0.0044

    0.0052

    0.006

    0.0068

    3

    1

    7

    8

    7

    2

    3

    3

    6

    2

    1

    5

    2

    6

    1

    9

    8

    2

    6

    7

    5

    3

    5

    6

    9

    9

    5

    8

    2

    5

    8

    8

    2

    0

    6

    4

    3

    8

    8

    3

    2

    2

    1

    6

    1

    5

    9

    6

    0

    4

    2

    9

    0

    9

    7

    4

    0

    7

    1

    6

    8

    7

    0

    1

    7

    1

    7

    6

    6

    9

    9

    5

    3

    7

    8

    9

    7

    7

    1

    0

    0

    4

    4

    4

    1

    1

    0

    4

    5

    1

    1

    6

    3

    9

    2

    2

    8

    8

    7

    2

    4

    4

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Arsenic Sample ID :4Q13L2

    31

  • Average

    Average

    Std. Dev

    2 Std. Dev

    0.002

    0.0028

    0.0036

    0.0044

    0.0052

    0.006

    0.0068

    0.002 0.0028 0.0036 0.0044 0.0052 0.006 0.0068

    Sam

    ple

    ID

    : 4Q

    13L

    2

    Sample ID: 4Q13L1

    ASTM Proficiency Test Program - Arsenic

    E415

    ICP

    Other Method

    32

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Calcium

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E1085

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -3.0 0.0 025 0.0010 0.0000

    Robust Mean

    Robust Std. Dev

    Result Dev

    Method

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -1.0 001 0.0008 0.0003 2.0 003 0.0014 0.0002 0.5 005 0.0011 0.0005 0.0 008 0.0010 0.0003 -0.5 009 0.0009 0.0003 -0.5 011 0.0009 0.0004 1.0 012 0.0012 0.0004 -0.5 015 0.0009 0.0003 0.0 017 0.0010 0.0004 -0.5 020 0.0009 0.0002 0.5 021 0.0011 0.0004 0.0 022 0.001 ** 0.001 0.0 025 0.001 0.0003 -1.0 026 0.0008 0.0003 0.0 032 0.0010 0.0004 -1.0 037 0.0008 0.0003 0.0 038 0.0010 -1.0 040 0.0008 0.0003 -0.5 041 0.0009 0.0004 043 ** 0.000 0.000 -0.5 044 0.0009 0.0005 2.0 049 0.0014 0.0002 -1.0 051 0.0008 0.0003 0.5 053 0.0011 0.0004 -1.0 056 0.0008 0.0003 0.5 057 0.0011 0.0004 0.0 058 0.0010 0.0003 -0.5 059 0.0009 0.0003 061 ** 0.0025 ** 0.0037 0.0 062 0.0010 0.0004 063 0.000 -1.0 064 0.0008 0.0002 -0.5 067 0.0009 0.0003 -1.5 068 0.0007 0.0002 -2.0 069 0.0006 0.0001 1.0 070 0.0012 0.0006 -0.5 071 0.0009 0.0003 072 ** 0.0018 0.0009 -2.0 076 0.0006 0.0000

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    33

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Calcium

    Result Dev

    Method

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    0.0 078 0.0010 0.0007 -1.5 082 0.0007 0.0008 0.0 084 0.0010 0.0003 -1.0 085 0.0008 0.0003 0.5 087 0.0011 -1.5 088 0.0007 0.0001 090 ** 0.0018 ** 0.0010 1.5 091 0.0013 0.0004 1.5 092 0.0013 0.0004 0.5 095 0.0011 0.0003 -0.5 097 0.0009 0.0003 2.0 099 0.0014 0.0002 -1.0 100 0.0008 0.0003 1.0 102 0.0012 0.0005

    Robust Mean

    Robust Std. Dev

    0.0010

    0.0002

    0.0003

    0.0001

    Result Dev

    Method

    Lab

    Code

    ICP

    Result Dev

    4Q13L1 4Q13L2

    022 ** 0.011 ** 0.009 088 0.0016 ** 0.0010

    Robust Mean

    Robust Std. Dev

    Result Dev

    Method

    Lab

    Code

    Other

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    046 EDXRF ** 0.0102 072 ASTM E415 (OES) on ARL 3460 0.0016 0.0009 079 OES 0.0011 0.0003

    Robust Mean

    Robust Std. Dev

    0.0038

    0.0063

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    34

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Calcium

    Overall Summary

    Robust Std.Dev

    Robust Mean

    Comment:

    ** Data which is asterisked is not included in statistical analysis.

    See report introduction for information.

    0.0010

    0.0002

    0.0003

    0.0001

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    35

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1

    08

    5

    E415 ICP

    Oth

    er

    M

    eth

    od

    0.0004

    0.0006

    0.0008

    0.001

    0.0012

    0.0014

    0.0016

    2

    5

    4

    3

    6

    9

    7

    6

    8

    2

    6

    8

    8

    8

    4

    0

    6

    4

    8

    5

    5

    6

    1

    5

    1

    3

    7

    2

    6

    1

    0

    0

    4

    1

    2

    0

    5

    9

    6

    7

    1

    5

    9

    1

    1

    4

    4

    9

    7

    7

    1

    1

    7

    2

    2

    2

    5

    3

    2

    6

    2

    5

    8

    8

    8

    4

    3

    8

    7

    8

    5

    3

    2

    1

    5

    5

    7

    9

    5

    8

    7

    7

    0

    1

    0

    2

    1

    2

    9

    1

    9

    2

    3

    4

    9

    9

    9

    9

    0

    7

    2

    6

    1

    8

    8

    2

    2

    7

    9

    7

    2

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Calcium Sample ID :4Q13L1

    36

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1

    08

    5

    E415 ICP Other

    Method

    0

    0.0001

    0.0002

    0.0003

    0.0004

    0.0005

    0.0006

    2

    5

    7

    6

    6

    3

    4

    3

    6

    9

    8

    8

    6

    8

    4

    9

    9

    9

    2

    0

    6

    4

    3

    4

    0

    9

    5

    5

    1

    5

    6

    1

    5

    5

    8

    5

    9

    9

    7

    7

    1

    8

    5

    3

    7

    9

    2

    6

    2

    5

    1

    0

    0

    8

    8

    4

    6

    7

    1

    5

    7

    5

    3

    4

    1

    3

    2

    2

    1

    1

    7

    1

    2

    1

    1

    6

    2

    9

    2

    9

    1

    5

    1

    0

    2

    4

    4

    7

    0

    7

    8

    8

    2

    7

    2

    2

    2

    9

    0

    6

    1

    8

    8

    2

    2

    7

    9

    7

    2

    4

    6

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Calcium Sample ID :4Q13L2

    37

  • Average

    Average

    Std. Dev

    2 Std. Dev

    0

    0.0001

    0.0002

    0.0003

    0.0004

    0.0005

    0.0006

    0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016

    Sam

    ple

    ID

    : 4Q

    13L

    2

    Sample ID: 4Q13L1

    ASTM Proficiency Test Program - Calcium

    E1085

    E415

    Other Method

    38

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Carbon

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E1019

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.4 -0.5 002 0.4290 0.4160 0.7 -0.4 003 0.4300 0.4260 -0.4 -0.3 006 0.431 0.416 0.3 -0.6 007 0.428 0.423 -0.5 -0.8 008 0.4262 0.4148 -1.4 -1.8 010 0.416 0.407 -0.4 -0.2 011 0.4323 0.4158 0.3 -0.1 012 0.4332 0.4227 1.5 2.5 015 0.4598 0.4343 1.8 0.4 017 0.4383 0.4370 -1.6 -1.0 018 0.424 0.405 -0.1 -0.8 019 0.426 0.419 -0.2 0.4 020 0.4388 0.4183 -0.5 0.2 021 0.436 0.415 0.4 -0.4 024 0.430 0.424 -0.1 0.7 025 0.442 0.419 -1.3 -0.8 026 0.426 0.408 -0.8 028 ** 0.401 0.412 -1.7 -1.5 029 0.419 0.404 1.5 0.4 031 0.4380 0.4340 0.7 0.9 032 0.444 0.426 0.5 -0.1 034 0.433 0.425 -0.6 -0.2 036 0.432 0.414 -0.2 -0.1 038 0.433 0.418 -0.2 -0.1 040 0.433 0.418 0.5 0.6 042 0.4405 0.4245 -2.2 -1.4 043 0.420 0.399 -1.9 0.4 044 0.438 0.402 0.0 0.8 047 0.443 0.420 -0.5 -1.0 048 0.424 0.415 -0.1 -0.2 049 0.4319 0.4193 -0.8 -0.3 056 0.431 0.412 0.7 0.7 057 0.441 0.426 -0.1 0.9 058 0.444 0.419 1.1 -0.1 061 0.433 0.430 -1.4 0.0 064 0.434 0.407 -1.5 -0.6 067 0.428 0.406 1.5 0.9 069 0.4437 0.4336 -0.9 -0.8 070 0.4261 0.4114 -0.4 -0.2 071 0.432 0.416 0.2 -0.3 074 0.4312 0.4220 0.1 0.1 075 0.435 0.421 -0.5 0.3 082 0.437 0.415 -0.4 0.3 088 0.4370 0.4160 -1.5 -2.0 090 0.414 0.406 0.4 -0.1 094 0.433 0.424 -2.0 -0.3 097 0.431 0.401 -1.0 0.1 100 0.435 0.411

    39

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Carbon

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E1019

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    0.5 0.2 104 0.4367 0.4243

    Robust Mean

    Robust Std. Dev

    0.4327

    0.0068

    0.4173

    0.0091

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.5 0.6 001 0.440 0.415 0.3 -0.7 003 0.4270 0.4224 0.4 -1.2 004 0.422 0.424 -1.8 0.3 005 0.437 0.403 -0.3 1.6 007 0.4502 0.4169 -0.5 -0.8 008 0.426 0.415 0.6 0.6 009 0.4408 0.4258 -1.4 -1.8 010 0.416 0.407 0.0 0.1 011 0.4349 0.4196 -0.7 -1.0 012 0.4238 0.4134 0.0 -0.4 013 0.430 0.420 -0.1 -1.1 014 0.4230 0.4190 -1.0 -1.0 015 0.424 0.4103 -1.1 0.4 017 0.4381 0.4093 -1.2 -1.2 018 0.422 0.409 1.6 0.7 019 0.442 0.435 -0.5 -0.7 020 0.4274 0.4149 0.2 0.6 021 0.440 0.422 022 ** 0.399 ** 0.387 0.9 0.4 023 0.4387 0.4286 1.1 0.7 024 0.441 0.430 -0.4 -1.5 025 0.419 0.416 0.2 -0.1 026 0.433 0.422 0.1 0.8 027 0.4426 0.4206 -0.8 028 ** 0.401 0.412 1.2 1.3 029 0.448 0.431 0.2 -0.7 030 0.4268 0.4213 1.3 0.4 031 0.4381 0.4324 0.9 1.3 032 0.448 0.428 0.5 0.8 033 0.4428 0.4244 0.5 1.1 034 0.446 0.425 0.5 0.2 035 0.4359 0.4243 -0.4 0.2 036 0.436 0.416 1.5 1.4 037 0.449 0.434 0.7 0.1 038 0.435 0.426 1.0 1.8 039 0.453 0.4290 1.8 1.1 041 0.4454 0.4371 -0.3 -0.4 042 0.4302 0.4173 -0.1 0.5 043 0.439 0.419

    40

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Carbon

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    1.2 -0.3 044 0.431 0.431 0.6 0.6 045 0.4400 0.4253 0.1 0.2 049 0.4367 0.4207 0.9 050 ** 0.475 0.428 -0.4 -2.0 051 0.4137 0.4164 -0.1 2.9 052 0.464 0.419 0.1 -1.4 053 0.420 0.421 0.5 0.4 055 0.4381 0.4247 0.4 -0.2 056 0.432 0.424 0.5 -0.3 057 0.431 0.425 -0.2 -0.3 058 0.431 0.418 0.8 -0.5 059 0.4290 0.427 1.7 2.0 060 0.4543 0.4361 1.2 0.9 061 0.444 0.431 1.5 2.3 062 0.458 0.434 -1.3 -0.4 063 0.430 0.408 -1.0 -1.0 064 0.424 0.411 0.1 -0.6 065 0.428 0.421 -1.0 -0.9 066 0.425 0.411 0.6 1.2 068 0.4466 0.4254 1.3 0.8 069 0.4423 0.4322 1.3 2.2 070 0.457 0.432 0.0 -0.4 071 0.430 0.420 -0.8 -1.0 072 0.424 0.412 0.3 2.7 073 0.4616 0.4231 2.1 1.6 075 0.4507 0.4395 -1.3 -2.3 076 0.411 0.408 -1.0 -0.8 077 0.426 0.411 0.4 0.1 078 0.4351 0.4233 1.5 2.5 081 0.460 0.434 -1.1 -0.3 082 0.431 0.410 083 ** 0.377 ** 0.379 1.3 1.2 084 0.447 0.432 -0.3 0.4 085 0.438 0.417 1.5 1.1 086 0.446 0.434 -1.8 -0.9 087 0.425 0.403 -0.2 0.7 088 0.4417 0.4183 -1.6 -2.0 089 0.414 0.405 -0.5 -1.3 090 0.421 0.415 0.4 0.0 091 0.4348 0.4239 -0.4 -0.6 092 0.4285 0.4166 -0.3 0.8 093 0.443 0.417 0.7 0.9 094 0.444 0.426 1.4 0.9 096 0.444 0.433 -1.1 0.1 097 0.435 0.410 -0.7 0.1 098 0.435 0.413 0.0 1.3 099 0.448 0.420 1.0 2.0 100 0.455 0.429

    41

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Carbon

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    0.2 0.7 102 0.441 0.422 -1.1 -1.0 103 0.424 0.410 0.0 -1.1 104 0.4226 0.420

    Robust Mean

    Robust Std. Dev

    0.4354

    0.0122

    0.4212

    0.0092

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    Other

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -1.3 -1.7 006 Spark OES 0.417 0.408 -2.9 016 ISO/ASTM E353/BS6200/BS EN 0.405 ** 0.389 2.2 1.9 054 Combustion-infrared absorption 0.454 0.440 -0.1 -0.1 066 Combustion and gasometric method 0.433 0.419 -0.2 -1.2 072 ASTM E415 (OES) on ARL 3460 0.4224 0.4182 0.2 -0.3 079 OES 0.431 0.422 0.1 -0.2 080 ISO 13898, 15350, 15351 0.4319 0.4211 -0.4 0.0 101 ISO15350 0.4342 0.4165

    Robust Mean

    Robust Std. Dev

    0.4283

    0.0126

    0.4194

    0.0049

    Overall Summary

    Robust Std.Dev

    Robust Mean

    Comment:

    ** Data which is asterisked is not included in statistical analysis.

    E353 is specified in Other Methods section.E353applies to Stainless, Heat Resisting, Maraging and other Similar Cr-Ni-Fe Alloys. E350 applies to low alloy steel

    See report introduction for information.

    0.4343

    0.0102

    0.4199

    0.0093

    42

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1019 E415 Other

    Method

    0.4037

    0.4139

    0.4241

    0.4343

    0.4445

    0.4547

    0.4649

    2

    8

    1

    0

    4

    3

    4

    8

    1

    9

    8

    7

    2

    4

    5

    6

    6

    4

    9

    7

    1

    6

    1

    9

    4

    3

    8

    6

    4

    1

    0

    0

    1

    0

    4

    8

    8

    3

    1

    2

    0

    5

    7

    4

    7

    5

    8

    1

    5

    2

    2

    7

    6

    8

    9

    2

    5

    9

    0

    1

    8

    1

    4

    7

    2

    1

    0

    3

    6

    6

    8

    3

    0

    2

    0

    9

    2

    1

    3

    6

    3

    5

    8

    8

    2

    5

    6

    9

    1

    9

    7

    3

    8

    3

    5

    4

    9

    8

    5

    1

    7

    2

    3

    1

    2

    1

    1

    0

    2

    8

    8

    6

    9

    3

    3

    9

    6

    9

    4

    3

    4

    6

    8

    2

    9

    3

    2

    7

    3

    9

    1

    0

    0

    6

    2

    7

    3

    5

    0

    6

    7

    9

    6

    6

    5

    4

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Carbon Sample ID :4Q13L1

    43

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1019 E415 Other

    Method

    0.392

    0.4013

    0.4106

    0.4199

    0.4292

    0.4385

    0.4478

    4

    3

    4

    4

    1

    8

    9

    0

    1

    0

    1

    0

    0

    2

    8

    3

    6

    2

    1

    8

    2

    8

    8

    7

    1

    4

    0

    2

    0

    5

    8

    4

    9

    7

    5

    1

    2

    2

    4

    1

    0

    4

    3

    4

    3

    6

    1

    3

    1

    1

    7

    2

    2

    8

    7

    1

    0

    6

    3

    1

    7

    1

    0

    3

    1

    5

    6

    4

    7

    2

    9

    8

    2

    0

    9

    0

    2

    5

    5

    1

    7

    9

    3

    5

    8

    4

    3

    5

    2

    1

    3

    9

    9

    2

    7

    5

    3

    3

    0

    2

    6

    3

    7

    8

    5

    6

    3

    5

    5

    5

    5

    7

    6

    8

    9

    4

    5

    9

    5

    0

    1

    0

    0

    2

    4

    4

    4

    8

    4

    6

    9

    9

    6

    3

    7

    6

    2

    6

    0

    7

    5

    6

    7

    2

    8

    0

    5

    4

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Carbon Sample ID :4Q13L2

    44

  • Average

    Average

    Std. Dev

    2 Std. Dev

    0.392

    0.4013

    0.4106

    0.4199

    0.4292

    0.4385

    0.4478

    0.4037 0.4139 0.4241 0.4343 0.4445 0.4547 0.4649

    Sam

    ple

    ID

    : 4Q

    13L

    2

    Sample ID: 4Q13L1

    ASTM Proficiency Test Program - Carbon

    E1019

    E415

    Other Method

    45

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Chromium

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E1085

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    1.0 0.5 007 1.061 1.026 -0.4 0.7 021 1.065 1.003 025 ** 1.113 ** 1.071 -0.3 -0.3 029 1.046 1.006 0.6 0.8 030 1.066 1.020 0.6 -0.1 032 1.050 1.020 2.1 1.8 044 1.085 1.043 1.3 -0.1 056 1.050 1.030 -0.5 -0.7 057 1.040 1.002 -1.8 -0.6 082 1.041 0.982 0.7 0.8 100 1.066 1.021

    Robust Mean

    Robust Std. Dev

    1.0596

    0.0180

    1.0190

    0.0199

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E322

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.4 -0.9 047 1.036 1.004 0.1 -0.1 089 1.050 1.011

    Robust Mean

    Robust Std. Dev

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -1.1 -0.4 001 1.044 0.993 -0.9 -0.2 003 1.048 0.9950 -1.5 -1.6 004 1.024 0.986 -1.1 -1.0 005 1.035 0.993 0.7 -0.1 007 1.051 1.022 0.2 -0.1 008 1.051 1.014 0.6 0.5 009 1.0602 1.0203 -1.7 010 ** 0.103 0.983 0.1 0.0 011 1.0518 1.0121 -2.2 -2.1 012 1.014 0.975 -2.5 -1.8 013 1.020 0.970 0.6 -0.1 014 1.050 1.0200 -1.1 -1.2 015 1.0303 0.9919 -0.4 0.2 017 1.0558 1.0043 0.9 1.1 018 1.071 1.025 0.0 -0.4 019 1.044 1.010 0.4 0.6 020 1.0622 1.0164 0.3 0.2 021 1.056 1.015

    46

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Chromium

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    3.1 2.7 022 1.100 1.060 1.2 1.1 023 1.0714 1.0291 0.0 -0.1 025 1.050 1.010 0.4 0.4 026 1.060 1.017 -1.1 -1.2 027 1.0314 0.9933 -0.9 -0.9 028 1.036 0.996 2.1 0.8 030 1.0658 1.0434 -0.1 -0.4 031 1.0446 1.0085 0.8 0.9 032 1.068 1.023 0.2 -0.1 033 1.0503 1.0133 1.7 1.1 035 1.072 1.037 1.1 0.9 036 1.068 1.028 -0.2 -0.1 037 1.050 1.007 0.1 -0.4 038 1.045 1.012 039 ** 1.134 ** 1.093 0.0 0.5 040 1.061 1.010 2.5 1.6 041 1.0800 1.0500 -0.4 -0.7 042 1.0391 1.0041 -2.6 043 ** 0.910 0.969 -0.5 -1.1 044 1.033 1.002 0.1 0.1 045 1.0540 1.0118 0.1 -0.3 048 1.047 1.012 0.3 0.4 049 1.0594 1.0146 0.3 -1.3 050 1.029 1.015 -2.0 -1.6 051 1.0229 0.9774 -1.1 -1.2 052 1.031 0.992 2.7 053 1.100 ** 1.070 0.3 0.4 055 1.0590 1.0147 -0.8 -1.2 056 1.030 0.998 -0.3 -0.8 057 1.037 1.006 -0.8 -1.2 058 1.030 0.997 -1.4 -1.1 059 1.0320 0.987 -0.1 0.1 060 1.053 1.008 0.6 -0.7 061 1.040 1.020 1.8 1.7 062 1.083 1.039 -2.6 -2.1 063 1.014 0.969 -0.4 -0.3 064 1.047 1.004 -0.5 -1.2 065 1.031 1.002 0.8 0.2 066 1.056 1.023 0.1 1.0 067 1.069 1.012 0.7 0.5 068 1.0607 1.0210 0.9 0.8 069 1.0655 1.0247 0.9 0.8 070 1.066 1.024 -0.3 -0.7 071 1.040 1.005 -0.2 -0.7 072 1.039 1.007 1.2 1.2 073 1.073 1.029 0.5 0.5 074 1.0606 1.0177 1.8 1.5 075 1.079 1.039

    47

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Chromium

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -1.1 -1.3 076 1.029 0.992 0.6 1.0 077 1.070 1.020 -0.3 0.2 078 1.0560 1.0057 0.6 0.6 081 1.062 1.020 -1.9 -2.0 082 1.016 0.979 0.8 083 1.067 ** 0.017 -0.3 0.1 084 1.054 1.006 -2.3 -2.2 085 1.012 0.973 -1.3 -1.0 087 1.035 0.990 -0.5 0.0 088 1.0516 1.0021 -1.3 -1.2 089 1.030 0.990 0.4 -0.1 090 1.051 1.016 2.3 2.1 091 1.0886 1.0460 1.4 1.3 092 1.0758 1.0326 -0.7 -0.7 093 1.040 0.999 -0.2 0.2 094 1.055 1.007 0.0 -0.7 095 1.040 1.010 0.1 -0.1 096 1.050 1.012 -0.6 0.1 097 1.053 1.000 -0.1 0.2 098 1.055 1.009 0.6 1.0 099 1.069 1.019 -0.3 0.0 100 1.052 1.005 0.7 0.8 102 1.066 1.022 1.0 1.0 103 1.070 1.026 104 ** 0.967 ** 0.937

    Robust Mean

    Robust Std. Dev

    1.0509

    0.0184

    1.0094

    0.0166

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    ICP

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -1.3 -3.1 006 0.996 0.989 0.1 0.4 016 1.059 1.012 2.1 022 1.090 ** 1.099 0.2 -0.2 048 1.048 1.014 1.4 070 1.077 ** 1.107 -0.6 -0.2 088 1.049 1.000 0.1 0.1 101 1.0532 1.0112

    Robust Mean

    Robust Std. Dev

    1.0570

    0.0245

    1.0332

    0.0550

    48

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Chromium

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    Other

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    0.7 0.7 002 E352-93(2006) 1.0637 1.0220 0.5 0.4 006 Spark OES 1.060 1.018 1.3 0.8 016 ISO/ASTM E353/BS6200/BS EN 1.066 1.031 0.2 -0.3 018 Atomic Absorption 1.047 1.013 1.1 3.0 046 EDXRF 1.106 1.028 -0.3 0.2 066 AAS Method 1.055 1.005 -1.2 -1.7 072 ASTM E415 (OES) on ARL 3460 1.0224 0.9905 0.4 0.3 079 OES 1.058 1.016 -0.8 -0.6 080 ISO 13898, 15350, 15351 1.041 0.997

    Robust Mean

    Robust Std. Dev

    1.0533

    0.0123

    1.0136

    0.0150

    Overall Summary

    Robust Std.Dev

    Robust Mean

    Comment:

    ** Data which is asterisked is not included in statistical analysis.

    E352 is specified in the Other Methods section. E353applies to Tool Steels and Medium to High Alloy Steels. E350 applies to low alloy steel.

    See report introduction for information.

    1.0520

    0.0178

    1.0101

    0.0159

    49

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1085 E3

    22

    E415 ICP Other

    Method

    0.9986

    1.0164

    1.0342

    1.052

    1.0698

    1.0876

    1.1054

    5

    7

    2

    9

    5

    6

    2

    1

    1

    0

    0

    2

    5

    8

    9

    4

    3

    8

    5

    1

    2

    1

    3

    4

    7

    6

    5

    6

    1

    5

    5

    2

    5

    9

    8

    7

    2

    8

    7

    2

    9

    5

    7

    1

    1

    9

    3

    1

    4

    8

    3

    1

    4

    9

    6

    9

    0

    8

    1

    1

    9

    7

    4

    5

    9

    8

    1

    7

    7

    8

    5

    5

    2

    6

    7

    4

    4

    0

    2

    0

    3

    0

    1

    0

    2

    3

    2

    9

    9

    1

    0

    3

    1

    8

    3

    5

    9

    2

    4

    1

    9

    1

    5

    3

    6

    8

    8

    1

    6

    2

    2

    8

    0

    6

    6

    6

    1

    6

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Chromium Sample ID :4Q13L1

    50

  • Average

    Std. Dev

    2 Std. Dev

    Std. Dev

    2 Std. Dev

    E1085 E3

    22

    E415 ICP Other

    Method

    0.9624

    0.9783

    0.9942

    1.0101

    1.026

    1.0419

    1.0578

    8

    2

    2

    1

    3

    0

    1

    0

    0

    5

    6

    2

    5

    8

    9

    1

    0

    4

    6

    3

    8

    5

    5

    1

    1

    0

    5

    9

    8

    7

    7

    6

    5

    2

    7

    2

    8

    5

    6

    9

    7

    4

    4

    6

    4

    1

    7

    7

    1

    8

    4

    3

    7

    9

    4

    3

    1

    2

    5

    9

    5

    4

    5

    9

    6

    3

    8

    3

    3

    4

    9

    2

    1

    9

    0

    2

    6

    9

    9

    6

    1

    7

    7

    6

    8

    7

    3

    2

    6

    9

    1

    0

    3

    7

    3

    9

    2

    7

    5

    3

    0

    4

    1

    5

    3

    6

    1

    0

    1

    4

    8

    7

    0

    8

    0

    1

    8

    6

    4

    6

    Av

    era

    ge R

    esu

    lts

    Lab code

    ASTM Proficiency Test Program - Chromium Sample ID :4Q13L2

    51

  • Average

    Average

    Std. Dev

    2 Std. Dev

    0.9624

    0.9783

    0.9942

    1.0101

    1.026

    1.0419

    1.0578

    0.9986 1.0164 1.0342 1.052 1.0698 1.0876 1.1054

    Sam

    ple

    ID

    : 4Q

    13L

    2

    Sample ID: 4Q13L1

    ASTM Proficiency Test Program - Chromium

    E1085

    E322

    E415

    ICP

    Other Method

    52

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Cobalt

    Result Dev

    Method

    Lab

    Code

    E1085

    Result Dev

    4Q13L1 4Q13L2

    025 ** 0.004 ** 0.004 030 0.0070 0.0080

    Robust Mean

    Robust Std. Dev

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.3 -0.3 001 0.0063 0.0074 0.4 0.1 003 0.0066 0.0078 -1.8 -1.3 005 0.0057 0.0064 007 ** 0.0097 ** 0.0107 -0.9 -0.8 008 0.0060 0.0070 -1.4 -1.7 009 0.0054 0.0067 0.4 0.1 011 0.0066 0.0078 0.9 0.8 017 0.0070 0.0081 -0.7 -1.4 018 0.0056 0.0071 0.2 0.0 019 0.0065 0.0077 1.8 2.0 021 0.0078 0.0087 2.3 2.3 022 0.008 0.009 -0.9 -0.8 025 0.006 0.007 -0.7 0.0 026 0.0065 0.0071 -0.6 1.5 029 0.0075 0.0072 1.8 0.8 030 0.0070 0.0087 031 ** 0.0024 0.1 0.5 032 0.0068 0.0076 -0.4 -0.5 035 0.0062 0.0073 0.1 0.0 037 0.0065 0.0076 -0.3 -0.3 038 0.0063 0.0074 2.6 2.5 041 0.0081 0.0092 0.7 0.8 043 0.007 0.008 0.2 -0.2 044 0.0064 0.0077 0.2 -0.3 051 0.0063 0.0077 -3.4 -3.3 053 0.0044 0.0054 -0.9 -0.8 056 0.006 0.007 0.7 0.5 060 0.0068 0.0080 -0.4 -0.6 062 0.0061 0.0073 0.7 0.8 063 0.007 0.008 0.1 -0.2 064 0.0064 0.0076 -1.2 0.8 065 0.0070 0.0068 0.4 0.5 067 0.0068 0.0078 -1.5 -1.6 068 0.0055 0.0066 -0.1 -0.2 069 0.0064 0.0075 0.5 0.5 070 0.0068 0.0079 0.7 0.5 071 0.0068 0.0080 2.3 2.6 072 0.0082 0.0090

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    53

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Cobalt

    Result Dev

    Method

    Z

    Factor

    Lab

    Code

    E415

    Z

    Factor Result Dev

    4Q13L1 4Q13L2

    -0.9 -1.4 073 0.0056 0.0070 0.5 0.1 074 0.0066 0.0079 0.7 0.8 076 0.007 0.008 0.4 -0.2 077 0.0064 0.0078 -3.3 078 ** 0.0040 0.0055 -0.9 -1.0 082 0.0059 0.0070 -0.9 -0.8 083 0.006 0.007 0.2 0.0 084 0.0065 0.0077 -0.3 -0.5 088 0.0062 0.0074 -0.7 -0.8 089 0.0060 0.0071 -0.3 0.0 090 0.0065 0.0074 -0.3 -0.3 091 0.0063 0.0074 0.4 0.1 092 0.0066 0.0078 0.7 0.3 095 0.0067 0.008 0.7 0.9 097 0.0071 0.0080 0.7 0.8 099 0.007 0.008 0.2 0.0 100 0.0065 0.0077 -0.6 -0.8 102 0.0060 0.0072 2.9 2.6 104 0.0082 0.0094

    Robust Mean

    Robust Std. Dev

    0.0065

    0.0006

    0.0076

    0.0006

    Result Dev

    Method

    Lab

    Code

    ICP

    Result Dev

    4Q13L1 4Q13L2

    022 0.0056 0.0067 070 0.008 0.009 088 0.005 0.006

    Robust Mean

    Robust Std. Dev

    0.0062

    0.0018

    0.0072

    0.0018

    Result Dev

    Method

    Lab

    Code

    Other

    Result Dev

    4Q13L1 4Q13L2

    072 ASTM E415 (OES) on ARL 3460 ** 0.0140 ** 0.0150 079 OES 0.0067 0.0077

    Robust Mean

    Robust Std. Dev

    Committee E01 has determined that when the Robust Standard Deviation is greater than 20% of the Robust Mean then

    the Z-Factor calculations are meaningless and should not be calculated.

    54

  • ASTM Proficiency Test Program

    Chemical Analysis Plain Carbon Steel - Cobalt

    Overall Summary