CCQM-K152
Assay of Potassium Iodate
MEASURAND Amount content of oxidants expressed as potassium iodate
NOMINAL VALUE 4.65 mol/kg
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mol/kg.
CCQM-K152
Assay of Potassium Iodate
MEASURAND Mass fraction of iodine
NOMINAL VALUE 0.59 kg/kg
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/kg.
CCQM-K152
Assay of Potassium Iodate
MEASURAND Amount content of oxidants expressed as potassium iodate
NOMINAL VALUE 4.65 mol/kg
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mol/kg.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mol/kg |
mol/kg |
mol/kg |
||
| INTI | -0.0180 | 0.0110 | ||
| TUBITAK UME | -0.0074 | 0.0160 | ||
| INMETRO | -0.0023 | 0.0046 | ||
| VNIIM-UNIIM | -0.0006 | 0.0007 | ||
| NMIJ | -0.0005 | 0.0007 | ||
| NIM | 0.0005 | 0.0010 | ||
| SMU | 0.0005 | 0.0006 | ||
| CENAM | 0.0019 | 0.0021 |
CCQM-K152
Assay of Potassium Iodate
MEASURAND Mass fraction of iodine
NOMINAL VALUE 0.59 kg/kg
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/kg.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kg/kg |
kg/kg |
kg/kg |
||
| INTI | -0.00231 | 0.0014 | ||
| TUBITAK UME | -0.00096 | 0.0021 | ||
| VNIIM-UNIIM | -0.00005 | 0.0001 | ||
| SMU | 0.00005 | 0.0002 | ||
| INMETRO | 0.00007 | 0.0001 |
| Metrology area, Sub-field | Chemistry and Biology, Inorganics |
| Description | Assay of Potassium Iodate |
| Time of measurements | 2019 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Mass fraction of iodine, kg/kg Amount content of oxidants expressed as potassium iodate, mol/kg From 0.592 kg/kg to 0.597 kg/kg From 4.65 mol/kg to 4.68 mol/kg |
| Transfer device | High purity potassium iodate sample |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | CCQM (Consultative Committee for Amount of Substance) |
| Pilot institute |
VNIIM
D.I. Mendeleyev Institute for Metrology, Rosstandart Russian Federation |
| Contact person | Alena Sobina +73432280012 |
| Pilot laboratory | |
|---|---|
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INTI |
Instituto Nacional de Tecnologia Industrial, Argentina, SIM |
| NIM |
National Institute of Metrology, China, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
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CCQM-K152
Assay of Potassium Iodate
MEASURAND Amount content of oxidants expressed as potassium iodate
NOMINAL VALUE 4.65 mol/kg
The key comparison reference value xR and its associated standard uncertainty uR are computed from a weighted mean of the reported results, INTI excluded.
xR = 4.67194 mol/kg uR = 0.00025 mol/kg
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, both expressed in mol/kg:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui.
CCQM-K152
Assay of Potassium Iodate
MEASURAND Mass fraction of iodine
NOMINAL VALUE 0.59 kg/kg
The key comparison reference value xR and its associated standard uncertainty uR are computed from a weighted mean of the reported results, INTI excluded.
xR = 0.592 91 kg/kg uR = 0.000 05 kg/kg
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, both expressed in kg/kg:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui.
CCQM-K152
Assay of Potassium Iodate
MEASURAND Amount content of oxidants expressed as potassium iodate
NOMINAL VALUE 4.65 mol/kg
xi measured amount of content reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K152
Assay of Potassium Iodate
MEASURAND Mass fraction of iodine
NOMINAL VALUE 0.59 kg/kg
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
