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 6135-01-040-1446
NSN 5999-00-286-6231
NSN 6145-01-290-2736
NSN 5910-00-870-0141
NSN 5990-00-232-3965
NSN 5930-00-441-6306
NSN 6685-01-102-6723
NSN 5855-01-180-5369
NSN 5855-00-138-2386
NSN 6685-01-624-0504
NSN 5855-01-228-0942
NSN 6145-01-382-1681