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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Uzbekistan, UzNIM (Uzbek National Institute of Metrology)
Colour and other spectral.-int. meas. of materials ,
Colour, surface, L*a*b*
Diffusely-reflecting material
Absolute expanded uncertainty
:
0.17 to 1.1
Uncertainty table
{"row_1":{"col_1":"quantity","col_2":"lower limit","col_3":"upper limit"},"row_2":{"col_1":"L*","col_2":"0.17","col_3":"0.56"},"row_3":{"col_1":"a*","col_2":"0.53","col_3":"1.12"},"row_4":{"col_1":"b*","col_2":"0.23","col_3":"0.58"}}
Integrating sphere spectrophotometer, geometry of lighting/observation: 8º/di
1. ISO/CIE 11664-4:2019(E) 2. CIE 15:2018
Specific measurement conditions : lighting/observation geometry: 8º/di
Type of material : diffusely-reflecting material
Approved on 16 May 2024
CMC ID :
COOMET-PR-UZ-00000P2F-1
Colour and other spectral.-int. meas. of materials ,
Colour, surface, x, y, Y
Diffusely-reflecting material
Absolute expanded uncertainty
:
8.0E-4 to 1
Uncertainty table
{"row_1":{"col_1":"quantity","col_2":"lower limit","col_3":"upper limit"},"row_2":{"col_1":"Y","col_2":"0.16","col_3":"1.0"},"row_3":{"col_1":"x","col_2":"0.0008","col_3":"0.0026"},"row_4":{"col_1":"y","col_2":"0.001","col_3":"0.0024"}}
Integrating sphere spectrophotometer, geometry of lighting/observation: 8º/di
1. ISO/CIE 11664-4:2019(E) 2. CIE 15:2018
Specific measurement conditions : lighting/observation geometry: 8°/di
Type of material : Diffusely-reflecting material
Approved on 16 May 2024
CMC ID :
COOMET-PR-UZ-00000P2J-1
Ionizing radiation
Kerma/rate
,
Protection level ionization chambers
: 0.05 mGy/h to 120 mGy/h
Relative expanded uncertainty 1.8 % to 1.9 %
Calibration against a secondary standard free in air
X-ray, 10 kV to 50 kV, ISO 4037:2019, Narrow Series, 40 kV
Reference standard : Secondary standard ionization chamber
Source of traceability : IAEA
Approved on 09 May 2024
Institute service identifier : COO-RAD-UzNIM-1002
CMC ID :
COOMET-RI-UZ-00000PG7-1
Ionizing radiation
Kerma/rate
,
Protection level ionization chambers
: 0.02 mGy/h to 45 mGy/h
Relative expanded uncertainty 1.4 % to 1.7 %
Calibration against a secondary standard free in air
Cs-137, ISO 4037:2019
Reference standard : Secondary standard ionization chamber
Source of traceability : IAEA
Approved on 09 May 2024
Institute service identifier : COO-RAD-UzNIM-1001
CMC ID :
COOMET-RI-UZ-00000PFU-1
Ionizing radiation
Kerma/rate
,
Protection level ionization chambers
: 0.03 mGy/h to 120 mGy/h
Relative expanded uncertainty 1.8 % to 1.9 %
Calibration against a secondary standard free in air
X-ray, 50 kV to 300 kV, ISO 4037:2019, Narrow Series, 60 kV to 200 kV
Reference standard : Secondary standard ionization chamber
Source of traceability : IAEA
Approved on 09 May 2024
Institute service identifier : COO-RAD-UzNIM-1003
CMC ID :
COOMET-RI-UZ-00000PLE-1
