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SubNo 
Field 
Comparison inentifier 
Description 
Start Year 
Finish Year 
Comparison type 
Field 
Parameter(s) 
Status 
Pilot 
Publish Time 
Bioanalysis 


1 
QM 
CCQM K61 
Quantitative PCR 
2007 
2007 
K 
Amount of Substance, Bioanalysis 
Quantitative plasmid DNA based on a matched standard (matrix of non target DNA): 0.02 pg/µl and 0.002 pg/µl 
Approved for equivalence, Results available 
LGC&NIST 
2009 
2 
QM 
CCQM K86 
Relative quantification of genomic DNA fragments extracted from a biological tissue 
2010 
2010 
K 
Amount of Substance, Bioanalysis 
Ratio of number of copies of specified intact sequence segments of a length in the range of 70 to 100 nucleotides in a single genomic DNA extract 
Approved for equivalence, Results available 
IRMM 
2012 
Electrochemistry 


3 
QM 
CCQM K18 
pH measurement of carbonate buffer solutions 
2006 
2006 
K 
Amount of Substance, Electrochemistry 
pH 10 ； Temperature: 25 °C 
Approved for equivalence, Results available 
SMU 
2007 
4 
QM 
CCQM K18.1 
pH measurement of carbonate buffer solutions 
2007 
2007 
K 
Amount of Substance, Electrochemistry 
pH 10 ； Temperature: 25 °C 
Approved for equivalence, Results available 
SMU 

5 
QM 
CCQM K34 
Assay of potassium hydrogen phthalate 
2004 
2004 
K 
Amount of Substance, Electrochemistry 
Amount content, expressed in mol/kg 
Approved for equivalence, Results available 
SMU 
2006 
6 
QM 
CCQM K9 
pH measurement of phosphate buffer solutions 
1999 
2000 
K 
Amount of Substance, Electrochemistry 
15 °C, 25 °C and 37 °C plus 7 other temperatures 
Approved for equivalence, Results available 
PTB 

7 
QM 
CCQM K17 
pH measurement of phthalate buffer solutions 
2001 
2001 
K 
Amount of Substance, Electrochemistry 
Temperature: 15 °C, 25 °C and 37 °C 
Approved for equivalence, Results available 
PTB 

8 
QM 
CCQM K73 
Assay of HCl 
2009 

K 
Amount of Substance, Electrochemistry 
Amount content, nominal value: 0.1 mol/kg 
Report in progress, Draft B 
NIST 

9 
QM 
CCQMK36.1 
Measurement of electrolytic conductivity 
2007 
2008 
K 
Amount of Substance, Electrochemistry 
Electrolytic conductivity: 0.5 S/m and 5 mS/m 
Approved for equivalence, Results available 
DFM 
2009 
10 
QM 
CCQM K48 
Assay of potassium chloride 
2007 

K 
Amount of Substance, Electrochemistry 
Amount content of chloride in potassium chloride 
Approved for equivalence, Results available 
NIM 
2010 
11 
QM 
CCQM K92 
Measurement of electrolytic conductivity 
2011 

K 
Amount of Substance, Electrochemistry 
Conductivity: 0.05 S/m and 20 S/m 
Report in progress, Draft B 
SMU 

12 
QM 
APMP.QM K9 
pH measurement of phosphate buffer solutions 
2009 
2010 
K 
Amount of Substance, Electrochemistry 
pH ~ 6.86 Temperature: 15 °C, 25 °C and 37 °C 
In progress 
NMIJ 

13 
QM 
CCQM K19.1 
pH measurement of borate buffer solutions 

2010 
K 
Amount of Substance, Electrochemistry 
Temperature: 15 °C, 25 °C and 37 °C 
Approved for equivalence, Results available 
PTB 
2011 
14 
QM 
CCQM K96 
Assay of Potassium dichromate 
2011 
2012 
K 
Key comparison in Amount of Substance, Electrochemistry 
Amount content of oxidants expressed as potassium dichromate, nominal value 3.4 mol/kg 
Report in progress, Draft A 
KRISS & SMU 

Gas 


15 
QM 
APMP.QM K1.c 
Exhaust emission gases: Nitrogen monoxide in Nitrogen 
2005 
2006 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of NO in N2: 100 µmol/mol 
Approved for equivalence, Results available 
KRISS 
2010 
16 
QM 
APMP.QM K1.d 
Sulfur dioxide (SO2) in Nitrogen (N2) 
2005 
2006 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of SO2 in N2: 100 µmol/mol 
Approved for equivalence 
CERI 
2008 
17 
QM 
APMP.QM K4.1 
Ethanol in nitrogen 
2005 
2006 
K 
Amount of Substance, Gases 
Amountofsubstance fraction: 120 µmol/mol 
Approved for equivalence, Results available 
CERI( 
2008 
18 
QM 
APMP.QM K41 
Comparison of standard gas mixtures in high pressure gas cylinders with a matrix of air 
2011 
 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of hydrogen sulphide in nitrogen 
Planned 
KRISS 

19 
QM 
APMP.QM K46 
Ammonia in Nitrogen 
2012 
 
K 
Amount of Substance, Gases 
Amount of substance fraction of Ammonia in Nitrogen: 30 µmol/mol to 50 µmol/mol 
Planned 
CERI( 

20 
QM 
CCQM K1.a 
Carbon monoxide (CO) in Nitrogen (N2) 
1994 
1995 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of CO in N2: 100 µmol/mol, 1000 µmol/mol, and 60 mmol/mol 
Approved for equivalence, Results available 
NmiVSL 

21 
QM 
CCQM K1.b 
Carbon dioxide (CO2) in Nitrogen (N2) 
1993 
1994 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of CO2 in N2: 100 µmol/mol, 1000 µmol/mol and 150 mmol/mol 
Approved for equivalence, Results available 
NmiVSL 

22 
QM 
CCQM K1.c 
Nitrogen monoxide (NO) in Nitrogen (N2) 
1995 
1996 
K 
Amount of Substance, Gases 
Approved for equivalence, Results available 
Approved for equivalence, Results available 
NmiVSL 

23 
QM 
CCQM K1.d 
Sulfur dioxide (SO2) in Nitrogen (N2) 
1996 
1997 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of SO2 in N2: 100 µmol/mol and 1000 µmol/mol 
Approved for equivalence, Results available 
NmiVSL 

24 
QM 
CCQM K1.e 
Natural gas type I 
1996 
1997 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of Natural gas type I: 
Approved for equivalence, Results available 
NmiVSL 

25 
QM 
CCQM K1.f 
Natural gas type II 
1996 
1997 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of Natural gas type II: 
Approved for equivalence, Results available 
NmiVSL 

26 
QM 
CCQM K1.g 
Natural gas type III 
1996 
1997 
K 
Amount of Substance, Gases 
Amountofsubstance fraction of Natural gas type III: 
Approved for equivalence, Results available 
NmiVSL 

27 
QM 
CCQM K16.a 
Gas mixtures: Natural gas type IV 
2001 
2002 
K 
Amount of Substance, Gases 
Low calorific mixture 
Approved for equivalence, Results available 
BAM、 NmiVSL< 