:Improvement of Global Measurement Standards:BIPM, NMIs

:Implementation of MRA in the Mass & …. .:NMIs, RMO-TC

Meeting: Meeting 2002 + Chairpersons Meeting 2000, 2003

Structure: WG Hardness + WG Fluid Flow + WG Gravimetry

+Coord.Com. for WG Avogadro Constant

Personnel:

Chairpersons for WGM, WGF, WGD, WGHP, WGMP, WGLP

President

Mass and Related Quantities: Progress Report 1999-2003

kgm s

mol

kg/m3

kg/mol

kg/s

m3/s

m/s2

kgm/s2=N

kg/(ms2)=Pa

N/m2>>HV

Density Pressure

Hardness

Force

Gravimetry, g

Fluid Flow

Molar Mass, NA

m3

N m Torque

Solid

Liquid

Volume

HighMedium

Low=vac.

GasWaterOil

m/sAir Speed

Si

VickersRockwellShore,…

Balance Technology, Artifact, Material, Dimension,

Water, Steel, Silicon Crystal, Air, ..…. Bulk Food, Petroleum…

Measurement Standards for Mass & Related Quantities

Mass Artifact (Cleaning, Atmosphere, Magnetism)

Density (Si, Water,Tri-decane, Mercury,)

Force (Load Cell, Torque)

Pressure (Piston Gauge:Deformation,

Low-P operation., Manometry:,

Silicon Vac. Gauge, Spinning Rotor Sensor)

Hardness (Ideal Procedure for Hardness Testing.)

:Improvement of Global Measurement Standards

Density, Lattice Spacing, Molar Mass, Defect

Redundancy: NA 2-3x10-7, Discrepancy 5x 10-7

Lower by 1x 10-7 than CODATA 1998.

28Si, 29Si, 30Si Natural Si Enriched Si

Enrich 28Si to 99.99% NA, 5x10-8

Avogadro WG +Avogadro Coord. Comm. m

D

M/NA

d

dSi

Micro. Density = Macro. Density

(M/NA ) /d3 = =m/D3 NA =M/ (23/2 d2203)

6.022132

6.022134

6.022136

6.022138

6.022140

6.022142

6.022144

CO

DA

TA-9

8

WG

AC

-200

3

NA

/(10

23/m

ol)

1x10-6

Avogadro Constant

“Recommended table for the density of water between 0oC and 40oC based on recent experimental reports”

Application: Density standard.

Volumetry >Fluids, Solids. Energy, Environment, Tax, Food, .. .

Discovery of Isotope & SMOW, Pure Water Technology, GUM

waterV(sinker) = M(mass) – M(hydrostatic)

992

1000

0 40

Temperature /°C

/(

kg/m

3 )

Sinker

1. Chairpersons Meeting :Accelerate,Coordinate WG-KC.

2. WG:Choose KC, Assign Pilots, Coordinate Pilots

3. Pilot:Establish Protocol, Conduct KC, Link to TCM,TCFF

4. Meeting: Link to RMO-TC Chairs.

Implementation of MRA in the Mass & …. .:

Transfer Standards:

Mass Standards, Si Sphere, Load Cell, Piston Gauge, Spinning Rotor Gauge, Hardness Test Piece, Indenters, Flow Meter, Sonic Nozzle, Si Wafer, SiO2 Reference materials,Gravimeter, Reference Liquid

Security, Transportation Cost, Time Limit >> Stability

Suppl. Rockwell, a,c, d K1, Vickers 0.2, 1, 30

SEK4aK5g K2aK6g K8

1kg 10kg 100kg100mg 10g 100g1g

K1,4K2K3

K5

A,E,CMass

0

CCM Comparions

2.300kg/m3

K1 on Si

998kg/m3

Water

8.000kg/m3

K3 on SteelK2,E on LiquidK4 HydrometerDensity

10-7

1kN 10kN 100kN 1MN 10MN100N

K1 K2 K3 K4Force

10-6

1MPa1kPa1Pa1mPa1Pa 1GPa

K1gK3a

A AE EPressure

10-6

240HV 540HV 840HV15N 30N 45N

Hardness

10-3

Water Flow HC-Liq. Flow Air Speed Liq. Volume HiP-Gas Flow LoP-Gas Flow

K1 K2 K3 K4 K5 K6Fluid Flow

10-4

Gravimetry Avogadro Constantg=9.8***m/s2 NA=6.02***

WG Recomm. CODATA.

Int’l Comp.2001

Mass and Related Quantities:

CCM & TCM, TCFF of RMO KC, CMC

CCM & Other CCs Safety, Quality of Life

Quality x Quantity

Systematics for Global Measurement Standards

and their Dissemination

Mass Standard Atomic Standard

6.022132

6.022134

6.022136

6.022138

6.022140

6.022142

6.022144

CO

DA

TA-9

8

WG

AC

-200

3

NA

/(10

23/m

ol)

192.01554

192.01555

192.01556

192.01557

192.01558

192.01559

192.01560

192.01561

192.01562

d22

0 /(

pm

)

NMIJ-Absolute

PTB-Absolute

PTB-Differential

IMGC-Absolute

NIST-Differential

Least-square fitting

NRLM3

WASO04NRLM4 WASO17WASO4.2A

0.01 ppm

MO*4

12.058810

12.058815

12.058820

12.058825

12.058830

12.058835

12.058840

12.058845

S6N

MIJ

S7N

MIJ

A1-

2-1N

MIJ

A4-

2-1N

MIJ

NR

LM4

Avo

#1P

TB

Avo

#2IM

GC

Avo

#3C

SIR

O

WA

SO

04

All

sam

ples

CO

DA

TA

-98

Mol

ar v

olum

e / (

cm3/m

ol)

2329.024

2329.026

2329.028

2329.030

2329.032

2329.034

2329.036

2329.038

2329.040

2329.042

2329.044

2329.046

2329.048D

en

sity

/ (kg

/m3 )

NMIJ-Absolute

NMIJ-HW

NMIJ-PF

PTB-Absolute

PTB-PF

Leas t-square fitting

S4NMIJNRLM3

S5NMIJNRLM3

Avo#1PTBWASO04

S6NMIJNRLM4

S7NMIJNRLM4

A1-2-1NRLM4

A4-2-1NRLM4

± 0.1 ppm

Avo#2IMGCWASO04

Si2PTB