CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Zinc freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Tin freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Indium freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Gallium melting point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Mercury triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Argon triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Zinc freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| INMETRO | -0.69 | 1.37 | ||
| INRIM | -0.61 | 0.91 | ||
| INTI | -1.56 | 3.37 | ||
| KRISS | 0.61 | 0.99 | ||
| LNE-LCM/Cnam | 1.01 | 0.96 | ||
| NIM | 0.13 | 0.74 | ||
| NIST | 0.02 | 0.61 | ||
| NMIA | -1.07 | 0.64 | ||
| NMIJ/AIST | 0.19 | 0.78 | ||
| NPL | -1.78 | 0.64 | ||
| NRC | 0.30 | 0.75 | ||
| PTB | 1.69 | 1.23 | ||
| VSL | 2.53 | 1.04 | ||
| TTBS | -1.2 | 11.8 |
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Tin freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| INMETRO | -0.91 | 0.84 | ||
| INRIM | 0.09 | 0.59 | ||
| INTI | -1.10 | 1.88 | ||
| KRISS | 0.22 | 0.75 | ||
| LNE-LCM/Cnam | 0.29 | 0.64 | ||
| NIM | 0.33 | 0.54 | ||
| NIST | -0.11 | 0.37 | ||
| NMIA | -0.21 | 0.46 | ||
| NMIJ/AIST | -0.03 | 0.53 | ||
| NPL | 0.09 | 0.50 | ||
| NRC | 0.65 | 0.47 | ||
| PTB | 0.28 | 0.79 | ||
| VSL | 0.54 | 0.56 | ||
| TTBS | -3.0 | 10.8 |
This is the possibility to place a comment.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Indium freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| INMETRO | -0.65 | 0.61 | ||
| INRIM | -0.02 | 0.58 | ||
| INTI | 0.45 | 2.35 | ||
| KRISS | 0.27 | 0.97 | ||
| LNE-LCM/Cnam | 0.64 | 0.49 | ||
| NIM | 0.13 | 0.43 | ||
| NIST | 0.13 | 0.25 | ||
| NMIA | -0.04 | 0.39 | ||
| NMIJ/AIST | 0.16 | 0.36 | ||
| NPL | -0.29 | 0.29 | ||
| NRC | 0.12 | 0.29 | ||
| PTB | 0.06 | 0.75 | ||
| VSL | -0.02 | 0.40 |
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Gallium melting point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| BIPM | 0.11 | 0.32 | ||
| INMETRO | 0.29 | 0.34 | ||
| INRIM | 0.04 | 0.35 | ||
| INTI | 0.15 | 0.87 | ||
| KRISS | -0.08 | 0.41 | ||
| LNE-LCM/Cnam | -0.36 | 0.38 | ||
| NIM | 0.26 | 0.38 | ||
| NIST | -0.22 | 0.23 | ||
| NMIA | -0.33 | 0.35 | ||
| NMIJ/AIST | -0.24 | 0.30 | ||
| NPL | -0.06 | 0.26 | ||
| NRC | 0.12 | 0.27 | ||
| PTB | -0.05 | 0.30 | ||
| VSL | -0.14 | 0.36 | ||
| TTBS | -1.0 | 6.4 |
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Mercury triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| INMETRO | -0.11 | 0.41 | ||
| INRIM | 0.18 | 0.30 | ||
| INTI | -0.08 | 0.66 | ||
| KRISS | -0.19 | 0.40 | ||
| LNE-LCM/Cnam | 0.76 | 0.64 | ||
| NIM | 0.24 | 0.31 | ||
| NIST | -0.32 | 0.25 | ||
| NMIA | -0.04 | 0.29 | ||
| NMIJ/AIST | 0.18 | 0.59 | ||
| NPL | 0.06 | 0.24 | ||
| NRC | 0.01 | 0.24 | ||
| PTB | 0.12 | 0.29 | ||
| VSL | -0.07 | 0.25 | ||
| TTBS | 1.1 | 5.9 |
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Argon triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Degrees of equivalence represented by Di = (TI - TR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mK.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mK |
mK |
mK |
||
| INMETRO | 0.21 | 0.79 | ||
| INRIM | 0.22 | 1.08 | ||
| INTI | 0.95 | 1.74 | ||
| KRISS | 0.28 | 1.03 | ||
| LNE-LCM/Cnam | -0.17 | 0.80 | ||
| NIM | -0.67 | 0.66 | ||
| NIST | -1.41 | 0.54 | ||
| NMIA | -0.36 | 0.99 | ||
| NMIJ/AIST | 0.20 | 1.30 | ||
| NPL | 0.35 | 0.66 | ||
| NRC | -0.06 | 0.65 | ||
| PTB | 0.10 | 0.73 | ||
| VSL | -0.82 | 0.63 |
| Metrology area, Sub-field | Thermometry, Standard Platinum Resistance Thermometers |
| Description | Realization of the ITS-90 at 692.677 K (Zn FP) |
| Time of measurements | 2024 |
| Status | Measurements in progress |
| Measurand | Temperature at the freezing point of zinc (Zn FP) 692.677 K |
| Transfer device | Standard Platinum Resistance Thermometers |
| Comparison type | Key Comparison |
| Consultative Committee | CCT (Consultative Committee for Thermometry) |
| Conducted by | CCT (Consultative Committee for Thermometry) |
| Comments | This comparison is initiated by NPL and is designed to compare the realization of the ITS-90 at the freezing point of zinc, 692.677 K (Zn FP) through a) the calibration of SPRTs and b) independent measurements of a transfer open zinc cell. Each participant will use two transfer standard SPRTs to measure two Zn fixed point cells, namely their own national standard cell and a transfer standard cell. The transfer standards used will provided by NPL, and will be two long-stem SPRTs and an open Zn fixed-point cell. |
| Pilot institute |
NPL
National Physical Laboratory United Kingdom |
| Contact person | Radka Veltcheva +447828156038 |
| Additional |
This page proposes print-out on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
Please, select items to be printed out, then click on "OK" :
CCT-K9 and SIM.T-K9.3
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Zinc freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
CCT-K9
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = -0.20 mK uR = 0.11 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
Linking SIM.T-K9.3 to CCT-K9
The INMETRO provides the link between the key comparison SIM.T-K9.3 to CCT-K9, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Tin freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = 0.06 mK uR = 0.08 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
Linking SIM.T-K9.3 to CCT-K9
The INMETRO provides the link between the key comparison SIM.T-K9.3 to CCT-K9, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final Report.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Indium freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = -0.08 mK uR = 0.05 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Gallium melting point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = 0.23 mK uR = 0.03 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
Linking SIM.T-K9.3 to CCT-K9
The INMETRO provides the link between the key comparison SIM.T-K9.3 to CCT-K9, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Mercury triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = 0.28 mK uR = 0.04 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
Linking SIM.T-K9.3 to CCT-K9
The INMETRO provides the link between the key comparison SIM.T-K9.3 to CCT-K9, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final Report.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Argon triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Key comparison reference value:
Resistance ratios are used with calibration equations for each thermometer to obtain temperature Ti.
The key comparison reference temperature, TR, is calculated from the mean of the average temperatures from the participants' results, excluded SRPT measurements that fail the cutoff criteria described in section 3.5 of the Final Report, and its associated standard uncertainty uR is computed as explain in section 2.4 of the Final Report.
TR = 0.80 mK uR = 0.08 mK
The degree of equivalence of laboratory i relative to the key comparison reference value TR is given by a pair of terms, both expressed in mK:
Di = (Ti - TR) and its expanded uncertainty Ui at a 95 % level of confidence is computed as described in section 2.3 of the Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Zinc freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
SIM.T-K9.3
The measurement results are listed in Table 3 and 4 of the SIM.T-K9.3 Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Tin freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
SIM.T-K9.3
The measurement results are listed in Table 3 and 4 of the SIM.T-K9.3 Final Report.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Indium freezing point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Gallium melting point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
SIM.T-K9.3
The measurement results are listed in Table 3 and 4 of the SIM.T-K9.3 Final Report.
CCT-K9 and SIM.T-K9.3
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Mercury triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
SIM.T-K9.3
The measurement results are listed in Table 3 and 4 of the SIM.T-K9.3 Final Report.
CCT-K9
MEASURAND Resistance Ratio, W, at nominal temperature
NOMINAL TEMPERATURE Argon triple point, a defined fixed point on the International Temperature Scale of 1990 (ITS-90)
Wi dimensionless resistance ratio measurement results of thermometer from laboratory i
ui combined standard uncertainty of measurement made using thermometer from laboratory i are expressed in mK
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
