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 5835-01-060-8123
NSN 5960-00-226-5723
NSN 6145-01-062-2568
NSN 2925-01-281-6403
NSN 5935-01-268-4615
NSN 5925-00-244-0711
NSN 7035-01-063-0453
NSN 5985-01-370-3295
NSN 5930-00-447-7654
NSN 5965-00-764-1841
NSN 6240-01-560-8342
NSN 7035-01-654-0018