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 5855-01-534-2279
NSN 6240-00-061-3362
NSN 5965-00-170-5254
NSN 6645-01-578-3404
NSN 6150-01-411-1331
NSN 6130-01-350-3585
NSN 6240-01-158-4266
NSN 5945-00-318-5934
NSN 6145-01-015-3463
NSN 6135-00-816-9052
NSN 6130-00-964-1752
NSN 6620-01-583-6490