Comparison
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CCM.P-K4.2012

MEASURAND : Pressure

NOMINAL PRESSURE : 1 Pa, 3 Pa, 10 Pa, 30 Pa,100 Pa, 300 Pa, 1 000 Pa,
                                       3 000 Pa, 7 000 Pa and 10 000 Pa

MEASURAND : Pressure

Degrees of equivalence Di and expanded uncertainty Ui (95% level of confidence) expressed in Pa

Comparison
Comparison close

CCM.P-K4.2012

MEASURAND : Pressure

NOMINAL PRESSURE : 1 Pa, 3 Pa, 10 Pa, 30 Pa,100 Pa, 300 Pa, 1 000 Pa,
                                       3 000 Pa, 7 000 Pa and 10 000 Pa

 

Results are presented under A4 printable format in Summary Results (PDF file).

Comparison
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CC comparison
Linked comparison
CCM.P-K4.2012
Metrology area, Sub-field Mass and related quantities, Pressure
Description Pressure measurements in gas (absolute mode)
Time of measurements 2012 - 2013
Status Approved for equivalence
Final Reports of the comparisons
References

CCM.P-K4.2012 Registration and progress form

CCM.P-K4.2012 Technical Protocol

Measurand Pressure: 1 Pa to 10 kPa
Transfer device Transfer standard packages
Comparison type Key Comparison
Consultative Committee CCM (Consultative Committee for Mass and Related Quantities)
Conducted by CCM (Consultative Committee for Mass and Related Quantities)
Comments

Results published on 10 July 2019

Pressure measurements in gas (absolute mode)

Pilot institute NIST
National Institute of Standards and Technology
United States
Contact person Jay HENDRICKS
jay.hendricks@nist.gov
+1 301 975 4836
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
NIST

National Institute of Standards and Technology, United States, SIM

CENAM

Centro Nacional de Metrologia, Mexico, SIM

CMI

Czech Metrology Institute, Czechia, EURAMET

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

VNIIM

D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET

Comparison
Comparison close

CCM.P-K4.2012

MEASURAND : Pressure

NOMINAL PRESSURE : 1 Pa, 3 Pa, 10 Pa, 30 Pa,100 Pa, 300 Pa, 1 000 Pa,
                                       3 000 Pa, 7 000 Pa and 10 000 Pa

 

For each nominal pressure value, the key comparison reference value, pR,  is obtained from an unweighted mean of the measurement method means, excluding CENAM for the determination of pR at 10 Paz and 30 Pa.

The combined standard uncertainty of pR is uR .

The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms:
Di = (pi - pR) and Ui, its expanded uncertainty at a (k = 2), both expressed in Pa.

 

The degree of equivalence between two laboratories is given at p. 29 of the Final Report.
Comparison
Comparison close

CCM.P-K4.2012

MEASURAND : Pressure

NOMINAL PRESSURE : 1 Pa, 3 Pa, 10 Pa, 30 Pa,100 Pa, 300 Pa, 1 000 Pa,
                                       3 000 Pa, 7 000 Pa and 10 000 Pa

pi : corrected mean gauge reading obtained by laboratory i
ui : combined standard uncertainty of pi
(see CCM.P-K4.2012 Final Report p.15)