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 5920-00-149-1469
NSN 6145-00-293-5097
NSN 5905-01-628-0111
NSN 6320-00-937-5625
NSN 5999-01-555-4590
NSN 5920-01-568-5928
NSN 6685-01-274-9310
NSN 5930-00-998-9304
NSN 5935-00-130-6552
NSN 5945-00-891-9872
NSN 5999-00-802-9097
NSN 5835-01-143-9143