General description
This Standard Reference Material (SRM) is a primary gas mixture for which the amount-of-substance fraction, expressed as concentration, may be related to secondary working standards. The SRM is intended for the calibration of instruments used for carbon monoxide determinations and for other applications. For more information, please refer to the SDS and COA.SRM 2637A_cert SRM 2637A _SDS
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
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