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 6135-00-191-6444
NSN 5998-00-754-6157
NSN 6320-00-456-0836
NSN 6610-00-291-9093
NSN 6110-01-458-6647
NSN 6240-01-633-9357
NSN 5945-01-527-2487
NSN 5905-01-560-5634
NSN 5990-01-324-7529
NSN 5910-01-291-4945
NSN 5960-01-443-3067
NSN 5999-00-760-0441