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 6220-01-491-9454
NSN 5925-00-736-0425
NSN 5910-00-343-9585
NSN 5920-01-494-9401
NSN 5945-00-595-6769
NSN 7035-00-803-3056
NSN 5915-01-457-6506
NSN 6145-01-273-4634
NSN 5998-01-360-5648
NSN 5895-01-047-0939
NSN 5945-01-027-1351
NSN 6645-01-528-7152