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 4140-01-311-4769
NSN 4140-01-602-9588
NSN 5960-00-600-5825
NSN 5895-00-325-9036
NSN 6650-00-170-5095
NSN 5925-01-363-3245
NSN 5935-01-472-3977
NSN 6110-01-243-0446
NSN 6110-01-179-7024
NSN 5915-01-479-4809
NSN 7035-00-117-0418
NSN 6685-00-556-1896