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For the purposes of this article, the term “working measurement standard” refers to a measuring instrument that is calibrated relative to a reference measurement standard (which is also a measuring instrument). The working and reference measurement standards each consist of an ion chamber and an electrometer that are combined as a single measurement system.

For the purposes of this article, the term “working measurement standard” refers to a measuring instrument that is calibrated relative to a reference measurement standard (which is also a measuring instrument). The working and reference measurement standards each consist of an ion chamber and an electrometer that are combined as a single measurement system.

The laboratory maintains the reference measurement standard through annual calibrations that are performed by the [https://nrc.canada.ca/en/certifications-evaluations-standards/instrument-calibration-services/ionizing-radiation-standards-calibration-services NRC]. The laboratory then calibrates the working measurement standard in-house by directly comparing it to the (calibrated) reference measurement standard. The calibration of the working measurement standards has also been accredited by SCC and NRC CLAS.

The laboratory maintains the reference measurement standard through annual calibrations that are performed by the NRC. The laboratory then calibrates the working measurement standard in-house by directly comparing it to the (calibrated) reference measurement standard. The calibration of the working measurement standards has also been accredited by SCC and NRC CLAS.

==== '''What is accreditation and why is it important?''' ====

==== '''What is accreditation and why is it important?''' ====

Laboratory accreditation is a formal process of recognition by a third party organization to establish that a laboratory is technically competent and impartial. The CNSC laboratory was required to demonstrate its ability to produce precise and accurate test and calibration data, and to show the technical competence of staff. Learn more.

Laboratory accreditation is a formal process of recognition by a third party organization to establish that a laboratory is technically competent and impartial. The CNSC laboratory was required to demonstrate its ability to produce precise and accurate test and calibration data, and to show the technical competence of staff. [https://ilac.org/ilac-mra-and-signatories/benefits/ Learn more].

[[File:Certificate.png|link=http://wiki.gccollab.ca/File:Certificate.png|thumb|Certificate of accreditation for CNSC laboratory issued by SCC and NRC CLAS]]

One reason that the CNSC pursued this recognition for the laboratory is because [https://www.iso.org/standard/39883.html ISO/IEC 17025:2005] is an internationally accepted standard. Accreditation to such a standard provides formal recognition of competent laboratories throughout the world.

One reason that the CNSC pursued this recognition for the laboratory is because [https://www.iso.org/standard/39883.html ISO/IEC 17025:2005] is an internationally accepted standard. Accreditation to such a standard provides formal recognition of competent laboratories throughout the world.