MEASURAND : Amount content of H+ in hydrochloric acid solutions
NOMINAL VALUE: 0.1 mol/kg
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in mol/kg
SE* stands for SE "Ukrmetrteststandard"
Degrees of equivalence expressed in relative terms
SE* stands for SE "Ukrmetrteststandard"
MEASURAND : Amount content of H+ in hydrochloric acid solutions
NOMINAL VALUE: 0.1 mol/kg
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in mol/kg
Degrees of equivalence expressed in relative terms
Results are presented under A4 printable format in Summary Results (.PDF file).
| Metrology area, Sub-field | Chemistry and Biology, Electrochemistry |
| Description | Assay of HCl |
| Time of measurements | 2009 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Amount content, nominal value: 0.1 mol/kg |
| Transfer device | Bottles of the comparison solution |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | CCQM (Consultative Committee for Amount of Substance) |
| Comments | Results published on 28 November 2012 Assay of HCl |
| Pilot institute |
NIST
National Institute of Standards and Technology United States |
| Contact person | Kenneth W. PRATT +1 301 975 4131 |
| Pilot laboratory | |
|---|---|
| NIST |
National Institute of Standards and Technology, United States, SIM |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INTI |
Instituto Nacional de Tecnologia Industrial, Argentina, SIM |
| IPQ |
Instituto Portugues da Qualidade, Portugal, EURAMET |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| NIM |
National Institute of Metrology, China, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| SE "Ukrmetrteststandard" |
State Enterprise "Ukrmetrteststandard", Ukraine, EURAMET |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
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" :
MEASURAND : Amount content of H+ in hydrochloric acid solutions
The key comparison reference value, xR, and its standard uncertainty, uR, are calculated as explained on page 12 of the Final Report. xR = 0.100 929 2 mol/kg and uR = 0.000 010 9 mol/kg
NOMINAL VALUE: 0.1 mol/kg
The degree of equivalence of each laboratory i with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (k = 2) that is calculated as explained on page 14 of the Final Report.
The degrees of equivalence are also given in relative terms.
No pair-wise degrees of equivalence are computed here.
MEASURAND : Amount content of H+ in hydrochloric acid solutions
NOMINAL VALUE: 0.1 mol/kg
xi : result of measurement carried out by laboratory i
ULab i : expanded uncertainty (k = 2) of xi, ULab i = 2ui
