Calibration gas oxygen (zero air)
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 5945-00-279-3223
NSN 5965-00-222-0282
NSN 5999-00-236-8995
NSN 5998-00-563-3689
NSN 6145-01-506-9720
NSN 5895-01-054-3303
NSN 5910-01-049-1271
NSN 5905-00-167-6872
NSN 6220-00-870-5742
NSN 5945-00-485-2860
NSN 5945-00-068-9566
NSN 6110-01-411-1403