280 Slater Street
Ottawa, ON K1P 5S9
3484 Limebank Road,
Ottawa, Ontario, K1V 1E1
Telephone: 613-790-4619
Fax: 613-998-3209
Email: nadereh.st-amant@cnsc-ccsn.gc.ca
- Internal clients
- Federal organizations within Canada
- Ionizing radiation
- Standards Council of Canada (SCC)
- SCC file number: 151034
- First issued 2016-11-16
- Issue 8.0e 2025-09-18
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.
Ionizing radiation
In this section
Reference gamma ray beam, Cs-137
Characterization of the reference radiation field. CNSC instruction I500.2.GAMREF.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| 1.4 µSvh-1 to 2.0 µSvh-1 | 8.6 % |
| >2.0 µSvh-1 to 5.0 µSvh-1 | 6.5 % |
| >5.0 µSvh-1 to 10.0 µSvh-1 | 2.6% |
| >10.0 µSvh-1 to 20.0 µSvh-1 | 2.3 % |
| >20.0 µSvh-1 to 600.0 mSvh-1 | 2.2 % |
Reference ion chamber, Cs-137
Calibration of the Ion chamber with an electrometer. CNSC instruction I500.2.GAMREF.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| 0.85 mGyh-1 | 2.2 % |
| >468 mGyh-1 | 2.2 % |
Electronic Personal Dosimeters, Cs-137
Calibration of electronic personal dosimeters. CNSC instruction I500.2.GAMDOS.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| 150 µSv to 10 Sv | 5.0 % |
Field gamma survey instrument, Cs-137
Calibration of field gamma survey instruments. CNSC instruction I500.2.GAMDOS.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| 1.4 μSvh-1 to 600 mSvh-1 | 9.0 % |
Radioactivity
Field contamination survey instrument
Active dimensions of wide area planar reference standard sources: 10 cm × 10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm
Efficiency calibration for isotopes Am-241, Co-60, Cs-137, Sr-90
Calibration of field contamination survey instruments. CNSC instruction I500.2.CONTAM.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| 0.2 kBq to 5 kBq | 20 % |
Radioisotope identification device (RIID)
Sources – Isotopes: Am-241, Co-60, Cs-137, Ra-226
Energy calibration of RIID for identification of gamma emitting isotopes. CNSC instruction I500.2.RADIID.
| Measured Quantity & Range or Instrument | Expanded Measurement Uncertainty |
|---|---|
| Eγ ≤ 60 keV | Check of energy calibration ≤ 7 % |
| Eγ > 60 keV | Check of energy calibration ≤ 2 % |