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 6685-01-482-4916
NSN 5965-00-412-4402
NSN 6150-01-519-7764
NSN 5895-00-200-5607
NSN 6220-00-827-0227
NSN 5990-00-174-6695
NSN 5985-01-323-5007
NSN 6150-01-295-7295
NSN 6320-01-228-2380
NSN 5915-01-029-9001
NSN 6650-01-529-4373
NSN 6130-01-335-5630