Key Comparisons

International Comparisons

No. Name of comparison Comparison identifier Pilot NMI
1 Calibration of 1D CMM artefacts (step gauges) EURAMET.L-K5.2016 NPL
2 Mass : 50 kg APMP.M.M-K6.1 KRISS
3 AC power at 50 Hz/60 Hz APMP.EM-K5.1 NIM
4 AC power at 50/60 Hz COOMET.EM-K5 SE "Ukrmetrteststandard"
5 Reflection coefficient / S parameters in PC-3.5 CCEM.RF-K5c.CL/
APMP.RF-S5.CL
NMIJ
6 Spectral responsivity APMP.PR-K2.b KRISS
7 Activity measurement of Pa-231 in aqueous solution CCRI(II)-K2.Pa-231 NPL
8 Measurement of air kerma for low energy X rays BIPM.RI(I)-K2 BIPM
9 Measurement of air kerma in mammography beams BIPM.RI(I)-K7 BIPM
10 Calculation of the reference time scale UTC (Coordinated Universal Time) CCTF-K001.UTC BIPM
11 Determination of amount of acid in a solid weak acid CCQM-K34.2016 NIM
12 Heavy metals and organo-tin in leather powder CCQM-K128&P163 NIM
13 Phthalates in PVC CCQM-K133 NIM,NMIJ
14 Relative quantification of Bt63 in GM rice matrix sample CCQM-K86.b NIM/GL
15 Mass fraction of a purity-assessed recombinant protein in an aqueous calibration solution using amino acid-based ID-LC-MS and/or sulfur-based ID-ICP-MS CCQM-K151 KRISS
16 Airborne particle number concentration
Airborne particle charge concentration
CCQM -K150 NPL/PTB
17 Viscosity measurements of standard liquids CCM.V-K4 CENAM
18 Specific adsorption of N2 or Kr on nonporous silicon dioxide CCQM-K153 UNIIM
19 Nitrogen dioxide (NO2) in Nitrogen (N2) CCQM-K74.2017 BIPM
20 Hydrogen Sulfide in Nitrogen CCQM-K41.2017 KRISS
No. Name of comparison Comparison identifier Pilot NMI
1 Calibration of a linescale APMP.L-K7 KRISS
2 Water flow CCM.FF-K1 PTB
3 Mass : 50 kg APMP.M.M-K6.1 KRISS
4 Comparison of mass standards APMP.M.M-K5 NIM
5 Comparison of capacitors CCEM-K4 BIPM
6 Spectral regular transmittance SIM.PR-K6 NIST
7 Measurement of absorbed dose to water for high-energy photon beams BIPM.RI(I)- K6 BIPM
8 Calculation of the reference time scale UTC (Coordinated Universal Time) CCTF-K001.UTC BIPM
9 Mass fraction assignment of organic analytes in a multi-component aqueous calibration solution CCQM-K78 BIPM
10 Copper calibration solutions CCQM-K143 NIST
11 Carbon stable isotope ratio delta values in honey CCQM-K140 LGC
12 Comparison of humidity standards: dew point temperature APMP.T-K6.2013 NMC,NMIJ/AIST
13 Comparison of the measurement of clinical markers in human serum CCQM-K139 HSA
14 Enrofloxacin and sulfadiazine in bovine tissue CCQM-K141/P178 NRC Canada
15 Relative quantification of genomic DNA fragments extracted from oil matrix (OSR) CCQM- K86.c JRC
NRC
16 Measurement of porosity properties of nanoporous Al2O3 CCQM-K136 UNIIM
17 Determination of electrolytic conductivity in aqueous solutions CCQM-K36.2016 PTB
18 NO in Nitrogen CCQM-K137 BIPM
No. Name of comparison Comparison identifier Pilot NMI
1 Acceleration complex sensitivity CCAUV.V-K3 NIM
2 Iodine and other elements in infant formula CCQM-K125 HKGL
3 Purity assessment of high purity organic materials: Folic acid CCQM-K55.d BIPM
4 Copper Indium Gallium (di)Selenide (CIGS) thin layer composition CCQM-K129 KRISS
5 Realizations of the ITS-90 between 960 °C and 3000 °C CCT-K10 NPL
6 Comparison of resistance standards CCEM-K2 NRC
7 Urea and uric acid in human serum CCQM-K109 HSA
8 Water vapour in Nitrogen CCQM-K116 BIPM
9 Measurement of air kerma for Cobalt 60 BIPM.RI(I)-K1 BIPM
10 Measurement of air kerma for medium energy X rays APMP.RI(I)-K3 INER
11 Ambient CO2 CCQM-K120 CERY
12 Calibration of diameter standards CCL-K4.2015 NIST
13 PAHs in tea CCQM-K95.1 NIST
14 Mass fraction of organic calibration solution CCQM-K131 NIST
15 Comparison of AC-DC current transfer standards APMP.EM-K12 A*STAR
16 Calculation of the reference time scale UTC (Coordinated Universal Time) CCTF-K001.UTC BIPM