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 5935-00-885-3875
NSN 6240-00-177-0385
NSN 5835-01-257-0154
NSN 2925-00-891-9289
NSN 5990-01-378-7349
NSN 5855-01-475-4454
NSN 5895-01-432-0525
NSN 5930-00-425-9884
NSN 5905-01-406-3177
NSN 6150-01-534-8147
NSN 5996-01-129-1894
NSN 5920-01-423-5078