NASA NHB 5300.2 Apollo Metrology Requirements Manual

7/25/2019 NASA NHB 5300.2 Apollo Metrology Requirements Manual

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NHB 5300.2

APOLLO PROGRAM

DECEMBER1965

APOLLO

3

_09 W dOd A, ,L II I_ *4 d

METROLOGY

REQUIREMENTS

MANUAL

NATIONAL AERONAUTICS AND

Washington, D.C.

SPACE ADMINISTRATION

20546


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NASA Issuance No. NHB 5300.2

Apollo Documentation No. RA-006-008-1

PREFACE

Prevention

of

interface anomalies during Apollo

system hardware integration will, to a large extent,

depend upon the compatibility of measurement pro-

cedures presently being utilized throughout the NASA

and Contractor network.

Implementation of the Apollo Metrology Requirements

Manual will insure that uniform measurements of

high accuracy are achieved during the Apollo Program.

The criteria established within this document are to

be considered a clarification of the requirements

contained in NPC 200-2, Quality Program Provisions

for Space System Contractors.

Major General, USAF

Director, Apollo Program

Distribution:

Special


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TABLE OF CONTENTS

Subject

Chapter 1 Introduction

i.I

I.Z

1.3

Purpose ...................................... 1- 1

Scope 1- 1

Applicability 1- 1

Z.I

Chapter 2: Definitions

Applicability 2- 1 . .

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

3.10

3.11

3.12

3.13

3.14

Chapter 3: Standards and Equipment Control Requirements

Major Activities ................................ 3- 1

Operating Procedures ............................ 3- 1

Selection ..................................... 3- 1

Evaluation and Acceptance ......................... 3-2

Traceability ................................... 3-3

Calibration Cycles ............................... 3-4

Calibration Procedures ........................... 3-4

Records ...................................... 3-7

Recall ....................................... 3-8

Corrective Action ............................... 3-9

Facilities ..................................... 3- 10

Personnel .................................... 3- 1 1

Interlaboratory Comparison ........................ 3- 12

Evaluation .................................... 3- 12

4.1

4.2

4.3

4.4

4.5

Chapter 4: Evaluation Procedures

Purpose and Scope ............................... 4- 1

Surveyor's Preparation ........................... 4-1

Applicable Documents ............................ 4- 1

Performance and Evaluation ........................ 4-2

Metrology Requirements Evaluation Checklists ............ 4-2


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I.I PURPOSE

CHAPTER 1

INTRODUCTION

1.2

The Apollo Metrology Requirements Manual establishes specific require-

ments and associated criteria for a coordinated Metrology System,

including the establishment of an Evaluation Procedure (see Chapter 4).

This Manual provides for developing and controlling calibration practices

for standards and measuring equipment used in the development, manu-

facture, inspection and test of hardware.

SCOPE

This Manual includes control practices for all inspection and test

standards, gages, tooling, measuring, and test equipment used for

calibrating, data collecting, testing, and inspecting to determine the

conformance of hardware to design specifications.

1.3 APPLICABILITY

This Manual is applicable to all Centers, sites and their prime contrac-

tors who are responsible for the selection, evaluation, approval, cali-

bration, maintenance, and control of standards and measuring equipment.

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CHAPTER 2

DEFINITIONS

2.1 APPLICABILITY

To promote mutual understanding and to assist in effective communication

of requirements, the following definitions are applicable to this Manual.

a.

Calibration--Comparison between two instruments or devices (one of

which is a standard of known accuracy) to detect, correlate, report,

and/or adjust any aviation in the accuracy of the instrument being

compared.

b. Calibration Cycle--An

established interval between calibrations of

standards or inspection, measuring and test equipment.

c.

CalibrationProcedures--The

detailed instructions for performing

calibration.

do

Clean Room--An

enclosed area employing control over the particu-

late matter in air with the additional control of temperature, humidity,

and pressure, as required.

eu

Commercial

Items--Catalog

standards and inspection, measuring and

test equipment considered to be off-the-shelf and/or available

comme r cally.

f.

Historical Record--Record of identification, and accumulation of main-

tenance and calibration data for each standard and inspection, measur-

ing and test equipment to provide the data required for determining

stability and performance trends.

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Inspection, Measuring and Test Equipment--Equipment

(including

tooling) used to inspect, measure or test hardware to determine

conformance to applicable design specifications. Tooling includes

tools, gages, jigs and fixtures which measure dimensions, contours,

or locations affecting quality characteristics.

(Inspection, measuring and test equipment are hereafter referred to

in this Manual as equipment. )

h. Laboratory--Any segregated area specifically equipped for calibration

of standards and inspection, measuring, and test equipment.

io

Metrology--The

science and technology of measurement of any pa-

rameter of weight, mass, length, chemical and electrical unit, and

physical constant. This technology includes the selection, utilization,

and control of equipment used to provide measurement, and also,

includes assurance of a valid relationship between measured values

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Z.i Definitions

2-2

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and values of measurement established by national reference standards

and international agreements.

Mobile Capability--Ability

to transport facilities, standards and

inspection, measuring and test equipment, and the ability to

perform

calibration at remote locations.

NASA (or Contractor) Reference Standard--Measure

m e n t standards

representing the highest level of accuracy available within the NASA

(or Contractor) facilities. These are standard references against

which lower level standards are compared, and are calibrated to

national reference standards or are defined and sanctioned by inter-

national agreement.

National Bureau of Standards (NBS)--A

central Government agency

that has the responsibility for the custody, maintenance, and develop-

ment of the national standards of measurement together with the

provisions of calibration services related to these standards. This

agency has standards laboratories in Washington, D.C., and Boulder,

Colorado. (In addition to NBS, reference standards are maintained

throughout the world, such as at the National Physical Laboratory in

England and the National Research Council in Canada.)

National Refernce Standards

--The highest level national references

which are: standards maintained by the National Bureau of Standards;

acceptable standards maintained by other recognized agencies where

an NBS reference is not available; or values of natural physical

constants, such as, the acceleration due to gravity or standard

reference materials.

Recall System--A documented system to insure that all standards

and inspection, measuring, and test equipment are recalled from the

users at predetermined intervals for the purpose of calibration.

Repeatability--The

ability of a standard or measurement equipment

to repeat a measurement within some known value when used by one

person under specified conditions.

Reproducibility--The

difference in the average of groups of repeated

measurements made by different persons using the same standard or

measurement equipment under specified conditions.

Shielded Room--

A screened or metal enclosed area to prevent out-

side electrical interference or radiation from affecting equipment

performance or calibration measurements, and is provided with a

filtered power supply.

Site--NASA installations and component field activities geographically

located apart from the parent installation (i.e., MSC White Sands

Test Facility, Mississippi Test Facility, Michoud Assembly Facility,

etc.)


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Definitions 2. I

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Special Equipment--Equipment

of special design utilized for specific

measurement(s) and not normally available commercially.

Standard-

-An item which is established as an authoriz'ed or recognized

measurement reference, and is used to calibrate other standards or

to calibrate inspection, measuring and test equipment.

Systern--A documented method for the consistent performance of a

task or associated group of tasks.

Transfer Standavd--Any standard employed to transmit accuracies

from a NASA (or Contractor) Reference Standard toworking standard.

Workir_ Standard--Any

standard used in the calibration of inspection,

measuring, and test equipment.

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CHAPTER 3

STANDARDS AND EQUIPMENT CONTROL REQUIREMENTS

3.1 MA:_OR ACTIVITIES

The coordinated Apollo Metrology Program will include the major

activities as delineated in pars. 3.3 through 3.14. The activities provide

for the control of inspection, measuring and test equipment (hereafter

referred to as equipment ) and for the control of standards. Criteria

necessary for meeting these activity requirements are outlined and will

be included in operating systems at each Center, site or prime contrac-

tor.

3.2 OPERATING PROCEDURES

Written operating procedures will be developed and maintained for all

systems based on criteria specified in this document. These written

procedures

will be the basis for continuous review, evaluation and con-

sistent implementation regardless of personnel changes. Therefore,

the procedures will include all practices for the complete Metrology

Program as specified in the following paragraphs.

3.3 SELECTION

The selection of standards and equipment willbebased on the following

criteria:

a. The accuracy, stability, and range

of

standards and equipment will

be in conformance with end-use requirements. Within state-of-the-

art limitations, the standards used for calibration of inspection,

measuring and test equipment will have a tolerance no greater than

10 per cent of the allowable tolerance of the equipment being

calibrated, i.e., if the item to be calibrated has a tolerance of fl.0

per cent, the maximum allowable tolerance of the standard should

be -+0.1 per cent. If the state-of-the-art prevents the attainment of

this 10 to 1 ratio, authorization must be secured prior to use.

b. The selection will not result in unnecessary duplication of a capa-

bility that is available and canfeasiblybe utilized within the organiza-

tion, through an associated laboratory (NASA, DOD, etc.) or at another

Center, site or prime contractor.

c. Commercial or off-the-shelf standards or equipment will be

selected in lieu of special items, where feasible.

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3.4 Standards and Equipment Control Requirements

d. When several different types of standards or equipment are adequate

to perform a specific function(s), selection will be based on:

(1) Availability.

(2) Histories of like standards or equipment.

(3) Analysis of interlaboratory comparisons.

(4) Analysis of defect reports.

(5) Initial cost.

(8) Maintenance expenditures.

(7) Manufacturer's performance and service.

e. Verification of the laboratory's (or alternate facility's) capability to

perform calibration on the selected standard or equipment.

3.4 EVALUATION AND ACCEPTANCE

Standards and equipment that are received for evaluation and acceptance

will be processed in a consistent manner to include, but not be limited to,

the following actions:

a.

bo

Standards and equipment will be tested and verified for intended use

to the parameters given in the applicable standard and equipment

specification.

t

Evaluations will be performed and documented to determine that the

standard or equipment has the required accuracy for meeting end-

use specifications and that the standard or equipment can be

satisfactorily calibrated. The extent of these evaluations will be

dependent on the complexity and end-use requirements of the item as

follow s :

(i)

Commercial items (with sufficient information relative to accuracy,

stability and repeatability), when used in a manner consistent with

design, need not necessarily be subjected to evaluation tests.

(2)

Special standards or equipment will receive evaluation tests to in-

sure compatibility with the product and supporting or related equip-

ment. In addition, these special items, due to complexity and

specific requirements, will receive evaluation under intended

method of operation.

(3)

Complex and/or special standards or equipment will receive

comprehensive evaluations for assurance that the end item being

measured will be controlled within specified tolerances. These

evaluations will include repeatability and reproducibility testing

where necessary to provide assurance of required accuracies.

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Standards and Equipment Control Requirements 3.5.1

c. An applicable defect report will be generated and maintained for

standards and equipment that do not meet specifications.

d. All standards and equipment that are accepted will be:

(i) Entered into an inventory system (see par. 3.8.1).

(2) Calibrated to a specific procedure (see par. 3.7).

(3) Assigned a calibration cycle (see par. 3.6).

(4) Sealed to prevent tampering by unauthorized personnel prior to

next calibration.

(5)

Labeled or marked when possible, and entered into appropriate

records to indicate date of calibration and due date for next cali-

bration.

(6) Entered into recall system (see par. 3.9).

(7)

Tagged for safety instructions, special usage {i.e., Indication

Only, Reference Only, Limited Use) or special handling, special

storage, and environmental requirements, as applicable.

e.

f.

Data generated from the initial verification of standards and equip-

ment will be maintained.

Special standards or equipment specifications will be properly

documented by drawings and/or specifications and maintained current.

go

All associated manufacturer's instructions or procedures, including

records of any modification made to the item, will be maintained and

kept current.

3.5 TRACEABILITY

.

The standards used to calibrate lower level standards or equipment

will have valid relationships to national reference standards. When this

is not feasible due to state-of-the-art measurement, standards will be

acceptable that are developed by ratio-type of self-calibrationtechniques

using standards whose history and drift rates are known to be satis-

factory.

5.1 Evidence. Traceability to national reference standards will be

evidenced by valid reports of calibration for each standard processed.

These reports will indicate the date of calibration. If calibration of

standards is performed by an alternate laboratory, their report

will be maintained and will cross-reference an NBS report date and

number or other national reference standard report to indicate the

traceability and calibration status of standards used. Any standards

that by their nature are not sent to NBS, or an alternate laboratory,

for example, frequency standards, will be regularly monitored by a

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3.5.2

Standards and EcLuipment Control Requirements

method that is traceable to national reference standards and evi-

denced by a permanent log ofthe date, time, and observed deviations.

3.5.2

Flow Charts. Appropriate flow charts will be developed to provide

evidence of traceability of all equipment capabilities. These flow

charts will show this traceability through a series of standards with

records to substantiate relationships to national reference standards.

3.6 CALIBRATION CYCLES

To insure the maintenance of required accuracies for a particular standard

or equipment, it is required that recall for calibration be performed at

predetermined intervals. These intervals may be specified in terms of

time or usage. Time intervals will be established in terms of date

(month/day/year) so that the calibration label indicates the specific day

of expiration. The cycles established will be implemented by the recall

system (see par. 3.9).

3.6.1 Initial Cycle. The establishment of the initial calibration cycle for

incoming items will be based on the following, as applicable:

a. Experience with like standards or equipment.

b. Purpose.

c.

Amount

of use.

d. Accuracy requirements.

e. Standard practices.

f. Stability.

3.7

3.6.2

Cycle Adjustment. Calibration cycles will be shortened as required

to insure continued accuracy as evidence by the results of

preceding

calibrations, and may be lengthened only whenthe results of analysis

of data provide definite indications that such actions will not

adversely affect the accuracy.

CALIBRATION PROCEDURES

Written procedues will be used for calibrating standards or equipment.

These written procedures will be readily available to laboratory personnel

performing the calibration. There will be a means of insuring that an up-

to-date procedure is used that includes a method of indicating and con-

trolling necessary revisions.

3.7.1

Procedures Index and Format. The Index and Format for Calibra-

tion Procedures,

provides

for the listing of all available procedures

developed or being developed by each MSF

Center

and outlines a

procedures format. The Index will be provided to all MSF

Centers

for their use in establishing the availability of existing and planned

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procedures for calibrating standards or equipment. The use of

this Index by the Centers will:

a. Provide knowledge of availability of Center-proven procedures.

b. Reduce duplication of efforts in producing new procedures.

c. Provide for attaining standardization of new procedures as they

are developed.

3.7.2

d. Improve communication of like functions between Centers.

Procedure Development. Procedures that are developed will be

based on the Format in the Index and Format for Calibration

Procedures and will contain the following information:

a. Safety warnings and cautions.

b. Environmental control details

to

insure measurements of re-

quired accuracy including temperature, humidity, vibration,

cleanliness, etc.

C,

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ea

List of calibration equipment required and a diagram of complex

setups (consider accuracy ratios as discussed in par. 3.3a).

The actual operations listed in a series of sequential steps with

applicable tolerances.

A record keeping form or data sheet to include identification of

personnel performing calibration, condition of items previous

to calibration, final results, calibration time/cost, and other

information pertinent to a specific item.

f. Instructions for special handling of a standard or equipment

and required environmental controls after calibration.

g. Provisions for sealing standard or equipment to prevent

tampering between calibrations.

h. Provisions for documenting for the user any adjustments neces-

sary due to changes in environments.

i. For special equipment which is composed of several individual

items, the calibration of any one item may change the interrelated

results of the configuration. Therefore, procedures should

provide for calibration of the entire special equipment, if this

situation is encountered.

3.7.3 NASA (or Contractor) Reference Standards

a. The highest level standards that are available at a particular

location will be calibrated by the National Bureau of Standards

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3.7.4 Standards and Equipment Control Requirernents

3-6

(NBS) by another approved laboratory either directly or by use

of a special transfer standard if the Reference Standard cannot

be transported or by ratio-type of self-calibration techniques

(see par. 3.5). If the NBS performs this calibration, a report

will be issued for information and file which will show its

traceability. If an alternate laboratory performs the calibration,

it will be insured that this laboratory is performing the calibra-

tion to an approved procedure which includes proper environ-

ments, and the use of standards having the required accuracies;

these standards will have current reports that indicate direct

traceability to a national reference standard.

b.

A calibration procedure may not be needed for certain Reference

Standards, i.e., frequency standards, and they might not be sent

to NBS or an alternate laboratory for calibration. In these cases,

there will be a monitoring method consisting of a permanent log

showing dates, times and observed deviations that are directly

traceable to national reference standards.

3.7.4 Working and Transfer Standards

a.

If the standards at the working and transfer levels require cali-

bration at a different laboratory due to lack of facilities or lack

of adequate standards available locally, it will be insured that the

alternate laboratory performing the calibration is using approved

procedures (including proper environments and standards having

the required accuracies that are traceable to national reference

standards).

b*

When calibration is performed locally, it is essentialthat formal,

approved procedures be used. Since most of these standards

would fall into the category of a commercial item, a common

procedure should be available as provided for in the Index and

Format for Calibration Procedures. When standards are special

or a common procedure is not available, a procedure will be

developed containing the information outlined in par. 3.7.2.

C.

Standards that are to be used only over a portion of the range or

at certain points in the range may require calibration at these

points or in the ranges used. If this is performed, the calibration

points or ranges will be clearly indicated on the standard.

3.7.5 Equipment Calibration

a.

The calibration of equipment will be performed with working

standards in the required environment and at the intervals

established to provide the required confidence level of the

equipment. Each distinct type of equipment requires that a

calibration procedure be available for consistent operating

practices, and that the standards that are used are supported by

a train of successive reports that trace back to a national

reference standard.

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b.

Equipment that is to be used only over a portion of the range

or at certain points in the range may require calibration at these

points or in the ranges used. If this is performed, the calibration

points or ranges will be clearly indicated on the equipment.

3.8 RECORDS

Each standard and equipment will be supported by individual records

detailing all inventory and historical data. These records are necessary

to implement each of the control systems that are developed.

3.8.1

Inventory Records and Control. Inventory records of standards and

equipment are required to provide availability, status and capa-

bility data essential to ensure proper inventory control. Inventory

control will include:

a.

A positive nonduplicating inventory identification code to be

assigned to all standards and equipmert and to be affixed to

the item wherever it does not interfere with usage.

b. A record of each standard and equipment by nomenclature,

model number, serial number, manufacturer, date acquired,

physical location (user), range, accuracy and identification code.

c. Provisions for removing standards or equipment from inventory

when the items become obsolete or beyond economical repair.

d.

All personally owned equipment which will be recorded with

owner's name or payroll number, complete description of

'equipment and physical location. {Personally owned equipment

may be used only when properly authorized.}

3.8.2

Historical.

These records will provide objective evidence that

calibration schedules are complied with and that the accuracy of

the standard or equipment is being maintained. The records also

provide a history of stability, which may be evaluated and utilized

as a basis for the adjustment of calibration cycles or utilized to

indicate trends of wear and deterioration and may become a basis

for future selection of standards and equipment. Historical

records will include, but not be limited to, the following:

a. Data generated during calibration as required by the applicable

procedures (see par. 3.7.2e).

b. Provisions for providing data that will accompany standards or

equipment when returned to the user.

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e.

Data generated during the initial verification and evaluation and

data from any subsequent evaluations of a standard or equipment.

Calibration cycle.

Range and accuracy.

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f. Special usage information.

g, Calibration time/cost.

h. Maintenance data (repairs required and list of parts replaced).

i. Hours of usage for critical items where the usage factor is

important.

j. The individual record of a standard or equipment (whose

accuracy is reported via a formal report) will cross-reference

the report number. This is especially important for NBS reports

that are received with specific standards.

3.9 RECALL

3.9.1

Documented System. A documented recall system will be established

to insure thatal__ standards and al__jl equipment (incIuding personally

owned) are recalled for calibration at established intervals (cali-

bration cycles).

3.9.2

Maintenance of Records.

The required records for standards and

equipment will be maintained and keyed to a specific calibration

cycle and a specific calibration procedure. These records will

include identification, range, accuracy requirements, and special

usage infromation. The following subparagraphs state the basic

criteria that must be included in a recall system.

3.9.3

Notification.

Notification will be given to each user prior to the

established calibration due date for the assurance that standards and

equipment are:

a. Removed or made ready for calibration when required.

b. Not used after calibration due date.

The established calibration due dates do not relieve the user of the

responsibility of requesting supplementary calibration when a

standard or equipment is damaged, misused or suspected of being

out- of- tole r ance.

3.9.4

Mandatory

Removal.

A mandatory removal system will provide

delegation of authority for insuring the removal from use of stand-

ards or equipment that are beyond the calibration due date. These

items should be removed from service immediately. If physical

removal is impractical due to weight, service connections or other

characteristics of the item, it will be impounded by attachment of

signs, tags, or other means. However, consideration will be given

by the authority to the feasibility of temporarily extending the cali-

bration beyond the due date without degrading accuracies, when the

removal of the items would require teardown of costly setups or

interruption of tests. A tagging or other identification system will

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Standards and Equipment Control Requirements 3.10

3.9.5

3.9.6

3.9.7

3.10

be used for identifying items that have not been maintained, or

calibrated in accordance with an established schedule.

Delinquent Notices. Notification of delinquency will be given when

standards or equipment are not calibrated by the responsible

laboratory as scheduled. Responsibility will be established for

follow-up and positive corrective action involving delinquent items.

Labeling. Each standard or equipment will be labeled or marked

to indicate the date when next calibration is due. This label {or

appropriate record) will include date of calibration and identification

of the person performing the calibration. When item identification

does not appear on the label, a method will be established to insure

that labels

cannot

be interchanged from one item to another. If

the calibration cycle is based on usage or another system not as-

sociated with a time interval, the item and/or records will readily

indicate calibration status. To preclude the misuse of a standard or

equipment that is an integral part of anassembled item, the label-

ing or marking will identify the next higher assembly in which that

standard or equipment must be used.

Pickup and Delivery. A pickup and delivery service for all standards

and equipment will be established. This service is the responsi-

bility of the applicable laboratory, which will provide for handling

and transportation dependent upon the complexity and delicacy of

the standards and equipment. A receipt method will be used to

insure that the individual standard or equipment has been received

by the laboratory and as subsequent evidence that the item has been

returned to the user.

CORRECTIVE ACTION

When during normal use, calibration, or as a result of periodic inspec-

tions or crosschecks (see par. 3.14.2), it is determined that a standard

or equipment is out-of-specification or that there is indication of

malfunction, immediate corrective actions will be taken as follows:

a. Standards or equipment will be properly tagged to prevent Usage.

b. Standards or equipment in use will be returned to the calibration

laboratory.

Co

The user will be immediately notified and will determine if any

standard or equipment that was previously calibrated, or if any

material tested, by the out-of-specification item will require re-

calibration or retest and will take appropriate action.

d. Responsible organizational elements will take timely and positive

corrective actions to prevent recurrence.

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3.11

FACILITIES

The individual facility requirements that are necessary for laboratories

performing calibration will depend upon the complexity of the standards

and equipment utilized. All standards and equipment will be cali-

brated and used in an environment that is controlled to the extent

necessary to insure continued measurements of the required accuracy.

3.11.1

Requisites.

The following facility requisites will be established and

maintained compatible with the performance requirements of the

standards and equipment.

a. Files for calibration procedures and record keeping facilities

for laboratory use.

b. Adequate space and good housekeeping for effective use of items

assigned to each area.

c. Secured cabinets or areas for custody of standards or com-

parison items to prevent damage and unauthorized usage.

d. Storage and control of repair parts for repair capability.

e. A

secured

area for storage of obsolete and defective standards

and

equipment.

f.

A cleaning area to be located other than in the laboratory to

remove dust and foreign particles from items before they

enter the laboratory.

g. Controlled temperature, humidity, vibration, and a cleanatmos-

phere, as required, including personnel cleanliness and dress.

h.

Freedom from vibration in critical areas.

i. Lighting to provide adequate shadowless lighting at working

surfaces.

j.

k.

Shielded room equipped with filtered power in which calibration

will be performed on articles sensitive to electrical, electro-

magnetic, or radio frequency interference (RFI).

Separate environmental controlled (where necessary to maintain

accuracy} and segregated areas for incoming, in-process, and

outgoing items.

I. Exclusion of all but authorized personnel inlaboratory facilities.

m, Permanent setup of items that are required for special or

frequently performed calibration to reduce possibility of human

error and to reduce labor costs in making repetitive setups.

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3.12

n.

Standby power for items that will lose accuracy due to primary

power failure.

OB

Environmental controlled mobile capability (if required)for

pickup or delivery of sensitive standards or equipment and

for transporting standards or equipment to make local cali-

bration of items not readily movable.

PERSONNEL

The effectiveness of the Apollo Metrology Program islargely dependent

upon the knowledge, skill and devotion to duty of the personnel assigned

to the laboratories. To attain these attributes, proper selection and

training are required.

3.12.1 Selection. Selection of personnel will be based on their knowledge

and skill and by the evaluation of the following characteristics:

a. Demonstrated understanding of the meaning of precision meas-

urements.

b. Sense of responsibility.

c. Manipulative skill.

d. Educational background of the basic physical sciences and

mathematics.

e. Motivation with the appreciation of the importance of the work

and its impact on the end item,

3.12.2

Training. Each facility will recognize its needs for training its

personnel in common, as well as, unique or specialized skills in

keeping with their responsibilities and types of measurements. These

training needs will be met by a training program including:

a. Indoctrination and familiarization.

b. Training in operations of a specialized nature prior to perform-

ance of duties.

c. On-the-job training.

d. Certification and recertification for personnelperforming spe-

cialized tasks.

e. Assessment to determine requirements for additional training

to revise activities compatible with the state-of-the art.

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3.13 INTERLABORATORY COMPARISON

Enter Center, site and prime contractor will participate and contribute

to an interlaboratory comparison program for the purpose of verifying

the measuring capabilities among laboratories. A procedure for inter-

laboratory comparison will be implemented by a centrally controlled

authority as outlined in the Apollo Interlaboratory Comparison Pro-

cedure. This procedure will be based on the comparison of data taken

at the various laboratories with data from national reference standards,

through the use of an established comparison

package

of standards

and/or e quipment.

3.14 EVALUATION

3.14.1 Procedure. Chapter 4 establishes the procedure for surveying and

evaluating the conformance to the requirements of this Manual.

3.14.2 Responsibility

a. The Apollo Quality Assurance Office (Code MAR-Q), NASA

Headquarters, is responsible for evahating periodically the

conformance of the MSF Centers and their responsible organiza-

tions to the

provisions

of this Manual.

b. The MSF Centers are responsible for evaluating the compliance

of their sites and prime contractors to the provisions of this

Manual.

c. Each MSF Center, site and prime contractor is responsible

for evaluating its own performance against the requirements

of this Manual. All evaluations should be performed by an

impartial team composed of personnel not having specific line

responsibilities in the areas to be surveyed. Applicable written

instructions covering policy and procedures should be supplied

to each team. In addition, periodic inspections or cross-checks

will be made to detect damaged or inoperative calibration

standards or equipment, erratic readings, improper use of

standards and equipment, and other

performance

degrading

factors.

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k_/

4.1

4.2

4.3

EVALUATION

PURPOSE AND SCOPE

This Chapter sets forth:

a.

bo

CHAPTER 4

PROCEDURE

Methods and techniques for conducting surveys and evaluating degree

of conformance of Centers, sites and prime contractors.

Evaluation checklists which include major activity work elements to

provide for evaluating the degree of effective coverage of each

activity described in Chapter 3.

SURVE YOR' S PRE PARATION

The surveyor will:

a. Determine those rnetrology system requirements that are made

applicable by contractual documents.

b.

Ce

Determine, dependent on the requirements of the end-item, the degree

of compliance necessary to provide for the accuracy, stability, and

range that is required in the control and use of standards and

inspection, measuring and test equipment.

Be generally knowledgeable of measurement systems, requirements

and facilities.

APPLICABLE DOCUMENTS

NPC 200- 1A

NPC 200-2

NPC 200-3

NASA SP-6003

To Be Issued Later

To Be Issued Later

Quality Assurance Provisions for Govern-

ment Agencies

Quality Program Provisions for Space

System Contractors

Inspection System Provisions for Sup-

pliers of Space Materials, Parts, Com-

ponents, and Services

Quality Program Evaluation Procedures

Index and Format for Calibration Proce-

dures

Apollo Interlaboratory Comparison Pro-

cedure

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4.4 Evaluation Procedure

4.4 PERFORMANCE AND EVALUATION

4.4.1 Performance.

The performance of the survey should be conducted

by evaluating the work elements of the major activities established

in par. 4.5. For the adequate evaluation of each of these work

elements, it will be necessary to determine answers within the

following two areas:

a. Procedures-- Determine that documents are available which

describe the method of performance of each major activity as

detailed in Chapter 3.

b. Performance--Determine

that the implementation of the proce-

dures is accomplished to achieve the desired results. The deter-

mination of performance may be accomplished by actual observa-

tions of operations or by the review of applicable records that

would indicate degree of performance.

4.4.2 Evaluation. It is suggested that the initial approach to be used

during a survey should be to determine the existence and adequacy

of procedures that require the implementation of each work element

within each major activity [i.e., Selection, Evaluation and Acceptance,

Traceability, etc.). The next step would be to survey and evaluate

the performance against these established procedures. Each of these

steps require the use of the evaluation checklists in par. 4.5.

4.4.3 Reporting.

After completing the survey, a review meeting will be

held with the personnel responsible for the metrology program at

the

Center,

site or contractor being evaluated. This review should

point out major points of deviation from the requirements of this

Manual so that

corrective

action

may

be started. The discussion

with the Center, site or contractor should also emphasize the good

points in their metrology system. A formal report should be

developed and sent to the applicable Center, site, or contractor

for their use in correcting any discrepancies. This report will be

utilized by the evaluating function as a reference for corrective

action follow-up.

4.5 METROLOGY REQUIREMENTS EVALUATION CHECKLISTS

Each of the major activities set forth in Chapter 3 have been included

in the following checklists. These checklists contain work elements

including columns which will indicate the adequacy of coverage by nota-

tion of Satisfactory ( S ), Unsatisfactory ( U ), or Not Applicable ( N/A ).

When

an element is considered 'rN/A or U , it should be explained in

the Remarks column. If a more formal scoring is desired, the surveyor

may use a numerical grading system as outlined in the Quality Program

Evaluation Procedures (NASA SP-6003).

v

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NASA NHB 5300.2 Apollo Metrology Requirements Manual

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Transcript of NASA NHB 5300.2 Apollo Metrology Requirements Manual