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 6220-00-225-1732
NSN 6645-01-449-0785
NSN 6145-01-393-3366
NSN 5935-00-231-1163
NSN 5905-01-421-1241
NSN 5905-01-422-1670
NSN 5975-01-109-0511
NSN 5950-01-086-3326
NSN 5975-01-498-5692
NSN 5998-01-008-2876
NSN 5905-01-305-1958
NSN 5925-01-506-7833