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Can TCD and GC provide accurate concentrations for many types of mixed gases?

Question asked by Chris Fontaine on Oct 15, 2019
Latest reply on Oct 18, 2019 by Steven Cooke

I am trying to purchase accredited primary cal gas but i don't know how to interpret the Scope of calibration provided by the gas provider. I am attaching a picture of the scope (specifically interested in the gas concentration portion and GC & TCD) and a picture of the gas mixtures in question. Thank you so much, it is hard to find accredited calibration gases for ISO 17025:2017 accredited calibrations. Also if my previous question is too broad, if I ordered 8% CO with the balance of Nitrogen would the attached COA under the attached scope of accreditation provide me traceability to NIST?COA ExampleSample Scope of AccreditationGas Mixtures

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