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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 360 nm to 460 nm

Graph of equivalence

Red diamond : CCPR-K5 Blue square : EURAMET.PR-K5

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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 480 nm to 580 nm

Graph of equivalence

Red diamond : CCPR-K5
Blue square : EURAMET.PR-K5

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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 600 nm to 700 nm

Graph of equivalence

Red diamond : CCPR-K5
Blue square : EURAMET.PR-K5

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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 720 nm to 820 nm

Graph of equivalence

Red diamond : CCPR-K5
Blue square : EURAMET.PR-K5

Comparison
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Results
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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 360 nm to 460 nm

Degrees of equivalence relative to the key comparison reference value, expressed in relative terms

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

 

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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 480 nm to 580 nm

Degrees of equivalence relative to the key comparison reference value, expressed in relative terms

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

 

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 600 nm to 700 nm

Degrees of equivalence relative to the key comparison reference value, expressed in relative terms

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

 

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 720 nm to 820 nm

Degrees of equivalence relative to the key comparison reference value, expressed in relative terms

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

 

Comparison
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CC comparison
Linked comparison
CCPR-K5
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Metrology area, Sub-field Photometry and Radiometry, Properties of materials
Description Spectral diffuse reflectance
Time of measurements 2001 - 2003
Status Approved for equivalence
Final Reports of the comparisons
CCPR-K5 Final Report, 2013, 181 pages
Metrologia, 2013, 50, Tech. Suppl., 02003
References

CCPR-K5 Technical Protocol

Measurand Spectral diffuse reflectance
Parameters Wavelength from 360 nm to 830 nm
Transfer device Three samples of Spectralon and three samples of matte white ceramic tile
Comparison type Key Comparison
Consultative Committee CCPR (Consultative Committee for Photometry and Radiometry)
Conducted by CCPR (Consultative Committee for Photometry and Radiometry)
Comments

Results published on 9 October 2013

Spectral diffuse reflectance

EURAMET.PR-K5 results are linked to those of CCPR-K5

 

 
Pilot institute NIST
National Institute of Standards and Technology
United States
Contact person M. E. Nadal

+1 301-975-4632
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

CSIR-NML

Council for Scientific and Industrial Research, National Metrology Laboratory (became NMISA in 2007), South Africa, AFRIMETS

HUT

Helsinki University of Technology, Finland, EURAMET

IFA-CSIC

Instituto de Fisica Aplicada - Consejo Superior de Investigaciones Cientificas, now IO-CSIC, Instituto de Optica Daza de Valdés, Spain, EURAMET

KRISS

Korea Research Institute of Standards and Science, Korea, Republic of, APMP

MSL

Measurement Standards Laboratory, New Zealand, APMP

NIM

National Institute of Metrology, China, APMP

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

NPL

National Physical Laboratory, United Kingdom, EURAMET

NRC

National Research Council, Canada, SIM

OMH

Országos Mérésügyi Hivatal; Subsequently MKEH, now BKFH, Hungary, EURAMET

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

VNIIOFI

All-Russian Scientific Institute for Optical and Physical Measurements, Rosstandart, Russian Federation, COOMET

Comparison
Comparison close
Results
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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 360 nm to 460 nm

CCPR-K5 

Degrees of equivalence are produced from the combined results of both types of samples, but excluding data from 360 nm to 440 nm of ceramic tile samples (reasons for this are explained in Section 12 of the Final Report).
For each wavelength, the key comparison reference value was calculated as a weighted mean of the participants' results with a cut-off, as detailed in Section 13 of the Final Report (see Tables 13.1 and 13.2).

 

The degree of equivalence of each laboratory with respect to the reference value is given by a pair of relative terms:
Di and Ui, its expanded uncertainty (k = 2), both expressed in % (see equations 13.18 and 13.19 on page 147 of the Final Report).

EURAMET.PR-K5

The linking of EURAMET.PR-K5 to CCPR-K5 is made via METAS who participated in both comparisons.

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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 480 nm to 580 nm

CCPR-K5 

Degrees of equivalence are produced from the combined results of both types of samples, but excluding data from 360 nm to 440 nm of ceramic tile samples (reasons for this are explained in Section 12 of the Final Report).
For each wavelength, the key comparison reference value was calculated as a weighted mean of the participants' results with a cut-off, as detailed in Section 13 of the Final Report (see Tables 13.1 and 13.2).

 

The degree of equivalence of each laboratory with respect to the reference value is given by a pair of relative terms:
Di and Ui, its expanded uncertainty (k = 2), both expressed in % (see equations 13.18 and 13.19 on page 147 of the Final Report).

EURAMET.PR-K5

The linking of EURAMET.PR-K5 to CCPR-K5 is made via METAS who participated in both comparisons.

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 600 nm to 700 nm

CCPR-K5 

Degrees of equivalence are produced from the combined results of both types of samples, but excluding data from 360 nm to 440 nm of ceramic tile samples (reasons for this are explained in Section 12 of the Final Report).
For each wavelength, the key comparison reference value was calculated as a weighted mean of the participants' results with a cut-off, as detailed in Section 13 of the Final Report (see Tables 13.1 and 13.2).

 

The degree of equivalence of each laboratory with respect to the reference value is given by a pair of relative terms:
Di and Ui, its expanded uncertainty (k = 2), both expressed in % (see equations 13.18 and 13.19 on page 147 of the Final Report).

EURAMET.PR-K5

The linking of EURAMET.PR-K5 to CCPR-K5 is made via METAS who participated in both comparisons.

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 720 nm to 820 nm

CCPR-K5 

Degrees of equivalence are produced from the combined results of both types of samples, but excluding data from 360 nm to 440 nm of ceramic tile samples (reasons for this are explained in Section 12 of the Final Report).
For each wavelength, the key comparison reference value was calculated as a weighted mean of the participants' results with a cut-off, as detailed in Section 13 of the Final Report (see Tables 13.1 and 13.2).

 

The degree of equivalence of each laboratory with respect to the reference value is given by a pair of relative terms:
Di and Ui, its expanded uncertainty (k = 2), both expressed in % (see equations 13.18 and 13.19 on page 147 of the Final Report).

EURAMET.PR-K5

The linking of EURAMET.PR-K5 to CCPR-K5 is made via METAS who participated in both comparisons.

Comparison
Comparison close
Results
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Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 360 nm to 460 nm

CCPR-K5 

The laboratory individual measurements of all transfer samples (Spectralon and matte white ceramic tile) and corresponding standard uncertainties are given in Sections 9 and 10 of the Final Report, respectively.
The data obtained by the Pilot laboratory, NIST, are given in Section 11 of the Final Report.

EURAMET.PR-K5 

The laboratory individual measurements are given in the EURAMET.PR-K5 Final Report.

 

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 480 nm to 580 nm

CCPR-K5 

The laboratory individual measurements of all transfer samples (Spectralon and matte white ceramic tile) and corresponding standard uncertainties are given in Sections 9 and 10 of the Final Report, respectively.
The data obtained by the Pilot laboratory, NIST, are given in Section 11 of the Final Report.

EURAMET.PR-K5 

The laboratory individual measurements are given in the EURAMET.PR-K5 Final Report.

 

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 600 nm to 700 nm

CCPR-K5 

The laboratory individual measurements of all transfer samples (Spectralon and matte white ceramic tile) and corresponding standard uncertainties are given in Sections 9 and 10 of the Final Report, respectively.
The data obtained by the Pilot laboratory, NIST, are given in Section 11 of the Final Report.

EURAMET.PR-K5 

The laboratory individual measurements are given in the EURAMET.PR-K5 Final Report.

 

print out

Key comparison CCPR-K5 and EURAMET.PR-K5

MEASURAND : Spectral diffuse reflectance
WAVELENGTH : 720 nm to 820 nm

CCPR-K5 

The laboratory individual measurements of all transfer samples (Spectralon and matte white ceramic tile) and corresponding standard uncertainties are given in Sections 9 and 10 of the Final Report, respectively.
The data obtained by the Pilot laboratory, NIST, are given in Section 11 of the Final Report.

EURAMET.PR-K5 

The laboratory individual measurements are given in the EURAMET.PR-K5 Final Report.