| Company name | Rio Tinto Alcan Arvida Research and Development Centre (ARDC) |
|---|---|
| Company address | Technologies Analytiques BP 1250 1955 Boul. Mellon Jonquière (Quebec) G7S 4K8 |
| Contact | François Lagacé Telephone: 418-290-1573 Email: francois.lagace@riotinto.com |
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| Fields of calibration |
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| Accreditation body |
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| ISO/IEC 17025 |
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This CLAS Certificate is published by the CLAS service of the National Research Council of Canada (NRC) in cooperation with the laboratory accreditation program of the accreditation body. The accreditation body recognizes the capability of the named laboratory for being able to perform calibrations as per the listed Calibration and Measurement Capabilities with metrological traceability to the International System of Units (SI) or to standards acceptable to CLAS. See supplementary notes.
Mass
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
Type of Service | Remarks |
|---|---|---|---|
| Balances | |||
| (Electronic, Non Automatic) With the following resolutions | |||
| Microbalance | |||
| 0.1 μg and 1 μg | 3.5 μg | II |
For the calibration of balances. The Calibration Measurement Capability (CMC) listed can be achieved only if the balance being calibrated is suitable for such a measurement. The CMC is based upon the use of reference standards (weights) which meet the tolerance of ASTM-1 class. Rio Tinto Alcan ARDC corrects for the known offset assigned to its reference standards (applied mass value) so that it can calculate uncertainties that are perhaps better than the tolerances of the standards used. The CMC reflects the uncertainty contribution of the standards, the repeatability and readability of the best balance commercially available for the specific values calibrated by Rio Tinto Alcan ARDC. All values are expressed in conventional mass, as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of a conventionally chosen density (1.2 kg/m3)." |
| Analytic balance | |||
| 0.01 mg and 0.1 mg | 0.02 mg | II |
For the calibration of balances. The Calibration Measurement Capability (CMC) listed can be achieved only if the balance being calibrated is suitable for such a measurement. The CMC is based upon the use of reference standards (weights) which meet the tolerance of ASTM-1 class. Rio Tinto Alcan ARDC corrects for the known offset assigned to its reference standards (applied mass value) so that it can calculate uncertainties that are perhaps better than the tolerances of the standards used. The CMC reflects the uncertainty contribution of the standards, the repeatability and readability of the best balance commercially available for the specific values calibrated by Rio Tinto Alcan ARDC. All values are expressed in conventional mass, as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of a conventionally chosen density (1.2 kg/m3)." |
| 0.001 g, 0.01 g, 0.1 g and 1 g | 0.002 g | ||