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 6110-01-076-4060
NSN 6135-01-068-0119
NSN 5945-01-232-6466
NSN 5945-01-224-9046
NSN 5855-00-100-9003
NSN 5910-01-260-2023
NSN 5930-01-088-5951
NSN 5996-01-070-9243
NSN 5855-01-489-5808
NSN 6240-00-994-4056
NSN 5905-01-303-0677
NSN 4140-01-514-5656