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 5935-01-254-2968
NSN 5999-01-248-6019
NSN 5945-01-440-6389
NSN 6145-01-029-9026
NSN 6130-01-614-2552
NSN 5835-01-580-0446
NSN 5990-00-079-0932
NSN 6320-01-294-2500
NSN 6130-01-301-1660
NSN 5905-00-175-4381
NSN 5910-01-561-9200
NSN 6610-01-242-9674