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 6220-01-390-9538
NSN 5855-01-354-7291
NSN 5915-00-142-6912
NSN 6135-01-320-4815
NSN 6320-01-335-8336
NSN 6320-00-403-6003
NSN 6220-00-120-1249
NSN 6620-00-663-8962
NSN 5905-01-154-6131
NSN 6130-01-355-4121
NSN 5999-01-252-7333
NSN 5985-01-570-3826