A predetermined mixture of 2 or more gases in which each component is measured to extreme accuracy and its contents certified. It is normally used to standardize and assure the accuracy of highly sensitive laboratory equipment.
NSN 5835-01-116-2369
NSN 5930-01-117-5573
NSN 6130-01-442-6052
NSN 6130-01-481-8108
NSN 5935-01-199-5105
NSN 6610-00-755-1740
NSN 6610-01-023-1918
NSN 5998-01-142-3346
NSN 5965-01-351-6977
NSN 6130-01-398-4010
NSN 5990-00-997-5237
NSN 5990-01-590-4515