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 5985-01-573-5766
NSN 4140-00-431-0424
NSN 6610-00-402-8922
NSN 5910-00-808-6744
NSN 4140-01-168-7685
NSN 5960-01-128-9359
NSN 5999-01-261-5733
NSN 5999-00-917-8726
NSN 6150-01-639-8152
NSN 5930-01-196-5174
NSN 5996-01-042-8554
NSN 5835-00-581-9460