MEASURAND : Density of liquids
LIQUID : Water at 20 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID :Pentadecane at 20 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID : Pentadecane at 15 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID : Pentadecane at 40 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID :Pentadecane at 60 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 20 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 5 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID :Viscosity oil VO2 at 20 °C
Graph of equivalence
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
MEASURAND : Density of liquids
LIQUID : Water at 20 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 20 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 15 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 40 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 60 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 20 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 5 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Density of liquids
LIQUID : Viscosity oil VO2 at 20 °C
Degrees of equivalence relative to the CCM.DK2 key comparison reference value:
Red diamonds CCM.DK2 participants
Blue diamonds EURAMET.M.DK2 participants only
Results are presented under A4 printable format in Summary Results (PDF file).
Metrology area, Subfield  Mass and related quantities, Density 
Description  Density of liquids 
Time of measurements  2004 
Status  Approved for equivalence 
Final Reports of the comparisons  
Measurand  Density: 700 kg/m^{3} to 1700 kg/m^{3} 
Parameters  Temperature: 5 °C to 60 °C Atmospheric pressure 
Transfer device  Pentadecane, water, tetrachloroethylene and highviscosity oil samples 
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 27 March 2013 EURAMET.M.DK2 results are linked to those of CCM.DK2 Density of liquids

Pilot institute 
PTB
PhysikalischTechnische Bundesanstalt Germany 
Contact person  Horst BETTIN +49 (0) 531 592 3330 
Pilot laboratory  

PTB 
PhysikalischTechnische Bundesanstalt, Germany, EURAMET 
BFKH 
Government Office of the Capital City Budapest, Hungary, EURAMET 
CENAM 
Centro Nacional de Metrologia, Mexico, SIM 
KRISS 
Korea Research Institute of Standards and Science, Korea, Republic of, APMP 
NMIJ AIST 
National Metrology Institute of Japan, Japan, APMP 
NRC 
National Research Council, Canada, SIM 
VNIIM 
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET 
This page proposes printout on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
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MEASURAND : Density of liquids
LIQUID : Water at 20 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure B explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report).
The key comparison reference value is computed by a Monte Carlo method using the median. The distribution is usually nonsymmetric and the confidence interval may not be equally spaced around the reference value.
x_{R} = 998.3220 kg/m^{3}, U_{R} lower = 0.0038 kg/m^{3} and U_{R} upper = 0.0038 kg/m^{3}
In Procedure B, the degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated by the Monte Carlo method described in Metrologia, 2012, 39, 589595. 
MEASURAND : Density of liquids
LIQUID : Pentadecane at 20 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 768.5652 kg/m^{3}, U_{R} = 0.0027 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Pentadecane at 15 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure B explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report).
The key comparison reference value is computed by a Monte Carlo method using the median. The distribution is usually nonsymmetric and the confidence interval may not be equally spaced around the reference value.
x_{R} = 772.0696kg/m^{3}, U_{R} lower = 0.0047 kg/m^{3} and U_{R} upper = 0.0053 kg/m^{3}
In Procedure B, the degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated by the Monte Carlo method described in Metrologia, 2012, 39, 589595. 
MEASURAND : Density of liquids
LIQUID : Pentadecane at 40 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 754.5871 kg/m^{3}, U_{R} = 0.0040 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Pentadecane at 60 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 740.6078 kg/m^{3}, U_{R} = 0.0048 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 20 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 1622.7252 kg/m^{3}, U_{R} = 0.0106 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 5 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 1647.5491 kg/m^{3}, U_{R} = 0.0119 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Viscosity oil VO2 at 20 °C
The key comparison reference value, x_{R} , and associated expanded uncertainty at a 95% level of confidence, U_{R}, are calculated according to Procedure A explained in Metrologia, 2012, 39, 589595 (see page 17 of the Final Report). It is the weighted mean of the results.
x_{R} = 845.6817 kg/m^{3}, U_{R} = 0.0052 kg/m^{3}
The degree of equivalence, D_{i}, of laboratory i with respect to the key comparison reference value is calculated as the offset to x_{R} together with its expanded uncertainty U_{i} = 2(u_{i}^{2} – u_{R}^{2})^{1/2}, where u_{i} and u_{R} are the standard uncertainties of the laboratory result and of the key comparison reference value, respectively. 
MEASURAND : Density of liquids
LIQUID : Water at 20 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 9).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 20 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Tables 10 and 11).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 15 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 12).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 40 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 13).
MEASURAND : Density of liquids
LIQUID : Pentadecane at 60 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 14).
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 20 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 15).
MEASURAND : Density of liquids
LIQUID : Tetrachloroethylene at 5 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 16).
MEASURAND : Density of liquids
LIQUID : Viscosity oil VO2 at 20 °C
Measurements were carried from 27 April 2004 to 28 June 2004.
The results of the participants are given in Section 5 of the CCM.DK2 Final Report (see Table 17).