CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Enlarged graph
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Enlarged graph
CCT-K9 AND EURAMET.T-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, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Enlarged graph
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Enlarged graph
CCT-K9 AND EURAMET.T-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, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 | 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 | -1.9 | 11.9 | ||
| BEV | -0.80 | 1.62 | ||
| BFKH | 3.74 | 1.08 | ||
| BIM | -0.59 | 3.27 | ||
| BOM | 3.86 | 1.71 | ||
| CEM | 1.43 | 0.98 | ||
| CMI | 0.85 | 1.41 | ||
| DMDM | 0.11 | 1.71 | ||
| DTI | 0.73 | 1.37 | ||
| EIM | -1.47 | 1.69 | ||
| FTMC | 1.01 | 1.80 | ||
| GUM | 3.69 | 1.35 | ||
| FSB-LPM | -2.39 | 4.35 | ||
| IMBIH | 1.97 | 2.77 | ||
| INM | -0.85 | 2.44 | ||
| IPQ | 2.48 | 2.22 | ||
| JV | 1.19 | 1.19 | ||
| MIKES | 1.45 | 2.11 | ||
| MIRS/UL-FE/LMK | -0.35 | 0.89 | ||
| NSAI NML | -0.45 | 1.92 | ||
| RISE | 2.52 | 1.33 | ||
| METAS | 0.41 | 1.59 | ||
| SMD | 4.55 | 2.82 | ||
| SMU | 3.72 | 1.39 | ||
| UME | 1.42 | 1.69 | ||
| AS METROSERT | 1.92 | 6.60 |
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 | -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 | -3.9 | 10.8 | ||
| BEV | -0.05 | 1.81 | ||
| BFKH | 1.33 | 1.35 | ||
| BIM | 0.87 | 1.14 | ||
| BOM | 0.43 | 0.91 | ||
| CEM | 1.10 | 0.96 | ||
| CMI | 0.02 | 1.26 | ||
| DMDM | 0.58 | 1.24 | ||
| DTI | -0.42 | 0.46 | ||
| EIM | -0.05 | 1.22 | ||
| FTMC | -0.13 | 1.21 | ||
| GUM | 0.29 | 0.51 | ||
| FSB-LPM | -0.22 | 1.84 | ||
| IMBIH | -0.78 | 1.52 | ||
| INM | 0.01 | 2.10 | ||
| IPQ | 1.17 | 1.40 | ||
| JV | 0.34 | 0.64 | ||
| MIKES | 0.29 | 1.74 | ||
| MIRS/UL-FE/LMK | -0.31 | 0.64 | ||
| NSAI NML | -0.53 | 1.55 | ||
| RISE | -0.02 | 0.72 | ||
| METAS | -0.16 | 1.22 | ||
| SMD | 0.45 | 1.27 | ||
| SMU | -0.27 | 0.98 | ||
| UME | 0.20 | 1.01 | ||
| AS METROSERT | 0.10 | 4.90 |
CCT-K9 AND EURAMET.T-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 | 0.16 | 0.36 | ||
| NPL | -0.29 | 0.29 | ||
| NRC | 0.12 | 0.29 | ||
| PTB | 0.06 | 0.75 | ||
| VSL | -0.02 | 0.40 | ||
| BEV | 0.21 | 1.58 | ||
| BFKH | 0.69 | 1.17 | ||
| BIM | 0.56 | 0.86 | ||
| CEM | 0.48 | 0.75 | ||
| CMI | 0.02 | 0.89 | ||
| DMDM | 0.46 | 1.76 | ||
| DTI | -0.13 | 1.06 | ||
| EIM | 0.59 | 1.63 | ||
| GUM | 0.54 | 0.84 | ||
| INM | 0.13 | 1.79 | ||
| IPQ | 1.30 | 1.80 | ||
| JV | -0.07 | 0.48 | ||
| MIRS/UL-FE/LMK | 0.08 | 0.58 | ||
| NSAI NML | -1.13 | 1.98 | ||
| RISE | -0.19 | 0.56 | ||
| METAS | 0.44 | 1.72 | ||
| SMD | 0.11 | 0.96 | ||
| SMU | 0.64 | 0.92 | ||
| UME | -0.19 | 1.12 |
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 | -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 | -0.7 | 6.4 | ||
| BEV | 0.14 | 0.70 | ||
| BFKH | 0.20 | 0.42 | ||
| BIM | 1.66 | 0.44 | ||
| BOM | 0.42 | 0.66 | ||
| CEM | 0.07 | 0.48 | ||
| CMI | -0.22 | 0.40 | ||
| DMDM | 0.32 | 0.61 | ||
| DTI | -0.19 | 0.41 | ||
| EIM | -0.10 | 0.49 | ||
| FTMC | -1.08 | 0.62 | ||
| GUM | -0.16 | 0.48 | ||
| FSB-LPM | -0.44 | 0.84 | ||
| IMBiH | -0.25 | 0.64 | ||
| INM | 0.23 | 0.49 | ||
| IPQ | -0.39 | 0.68 | ||
| JV | -0.30 | 0.56 | ||
| MIKES | -0.53 | 0.76 | ||
| MIRS/UL-FE/LMK | 0.18 | 0.34 | ||
| NSAI NML | -0.12 | 0.62 | ||
| RISE | -0.32 | 0.46 | ||
| METAS | 0.23 | 0.69 | ||
| SMD | -0.28 | 0.49 | ||
| SMU | -0.27 | 0.36 | ||
| UME | -0.24 | 0.40 | ||
| AS METROSERT | -0.67 | 1.85 |
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 | 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 | 1.0 | 5.9 | ||
| BEV | 0.00 | 0.87 | ||
| BFKH | 1.30 | 0.33 | ||
| BIM | -0.02 | 0.55 | ||
| BOM | -0.20 | 0.67 | ||
| CEM | 0.65 | 0.78 | ||
| CMI | 0.31 | 0.44 | ||
| DMDM | -0.17 | 0.68 | ||
| DTI | -0.11 | 0.47 | ||
| EIM | 0.03 | 0.56 | ||
| FTMC | -0.09 | 0.67 | ||
| GUM | -0.27 | 0.47 | ||
| FSB-LPM | -0.05 | 0.27 | ||
| IMBIH | -0.28 | 0.55 | ||
| INM | -0.05 | 0.37 | ||
| IPQ | 0.48 | 1.00 | ||
| JV | 0.60 | 0.74 | ||
| MIKES | 0.55 | 0.80 | ||
| MIRS/UL-FE/LMK | 0.00 | 0.31 | ||
| NSAI NML | 0.07 | 0.60 | ||
| RISE | -0.20 | 0.45 | ||
| METAS | 0.07 | 0.82 | ||
| SMD | 0.63 | 1.03 | ||
| SMU | 1.16 | 0.59 | ||
| UME | 0.55 | 0.57 | ||
| AS METROSERT | 0.91 | 3.48 |
CCT-K9 AND EURAMET.T-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 | 0.20 | 1.30 | ||
| NPL | 0.35 | 0.66 | ||
| NRC | -0.06 | 0.65 | ||
| PTB | 0.10 | 0.73 | ||
| VSL | -0.82 | 0.63 | ||
| BEV | -0.66 | 1.53 | ||
| CEM | -0.60 | 1.20 | ||
| CMI | 0.84 | 1.03 | ||
| DTI | -3.89 | 2.57 | ||
| EIM | 0.86 | 0.88 | ||
| GUM | -0.82 | 1.55 | ||
| INM | -0.98 | 1.06 | ||
| IPQ | -0.47 | 1.68 | ||
| JV | 0.45 | 1.09 | ||
| MIKES | 0.04 | 1.52 | ||
| MIRS/UL-FE/LMK | -0.17 | 1.16 | ||
| RISE | 0.06 | 1.57 | ||
| METAS | -0.60 | 1.32 | ||
| SMD | -1.49 | 1.16 | ||
| UME | 0.42 | 1.05 |
| Metrology area, Sub-field | Thermometry, Standard Platinum Resistance Thermometers |
| Description | Realizations of the ITS-90 from 273.16 K to 692.7 K |
| Time of measurements | 2012 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Temperature (Resistance ratio of the transfer standards |
| Parameters | Fixed points of Ga (302.9146 K), Sn (505.078 K), and Zn (692.677 K) |
| Transfer device | Long-stem SPRTs |
| Comparison type | Key Comparison |
| Consultative Committee | CCT (Consultative Committee for Thermometry) |
| Conducted by | SIM (Inter-American Metrology System) |
| Pilot institute |
NRC
National Research Council Canada |
| Contact person | Ken HILL +1 613 998 6077 |
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, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 CCT-K9 and SIM.T-K9.3, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final report.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
Linking EURAMET.T-K9.1 to CCT-K9
JV provides the link between the key comparison CCT-K9 and EURAMET.T-K9.1, having participated in both comparisons. The linking process is described in Section 3 of the EURAMET.T-K9.1 Final report.
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
Linking EURAMET.T-K9.1 to CCT-K9
JV provides the link between the key comparison CCT-K9 and EURAMET.T-K9.1, having participated in both comparisons. The linking process is described in Section 3 of the EURAMET.T-K9.1 Final report.
CCT-K9 AND EURAMET.T-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.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
Linking EURAMET.T-K9.1 to CCT-K9
JV provides the link between the key comparison CCT-K9 and EURAMET.T-K9.1, having participated in both comparisons. The linking process is described in Section 3 of the EURAMET.T-K9.1 Final report.
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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 CCT-K9 and SIM.T-K9.3, having participated in both comparisons. The linking process is described in Section 7 of the the SIM.T-K9.3 Final report.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
Linking EURAMET.T-K9.1 to CCT-K9
JV provides the link between the key comparison CCT-K9 and EURAMET.T-K9.1, having participated in both comparisons. The linking process is described in Section 3 of the EURAMET.T-K9.1 Final report.
CCT-K9 AND EURAMET.T-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.
Linking EURAMET.T-K9 to CCT-K9
LNE-LCM/Cnam, INRIM, NPL, PTB and VSL provide the link between the key comparison CCT-K9 and EURAMET.T-K9, having participated in both comparisons. The comparison was organised in five separate colapsed stars, each having one CCT-K9 participant as pilot, which provides the link to the KCRV (Section 1, 2.1 and 2.4 of EURAMET.T-K9 Final report).
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
EURAMET.T-K9.1
The measurement results are listed in Section 4 of the EURAME.T-K9.1 Final report.
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
EURAMET.T-K9.1
The measurement results are listed in Section 4 of the EURAME.T-K9.1 Final report.
CCT-K9 AND EURAMET.T-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.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
EURAMET.T-K9.1
The measurement results are listed in Section 4 of the EURAME.T-K9.1 Final report.
CCT-K9, SIM.T-K9.3, EURAMET.T-K9 AND EURAMET.T-K9.1
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.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
EURAMET.T-K9.1
The measurement results are listed in Section 4 of the EURAME.T-K9.1 Final report.
CCT-K9 AND EURAMET.T-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
CCT-K9
The laboratory measurement results are listed in Appendix B of the CCT-K9 Final Report.
EURAMET.T-K9
The measurement results are listed in Section 4 of the EURAMET.T-K9 Final report.
