21% oxygen in nitrogen with less than 1 ppm total hydrocarbons, valve connection is c-10 5/8-18unf, cylinder dimensions are 3.25 inches od by 13.84 inches in height
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 5975-00-955-2224
NSN 5999-01-560-4733
NSN 6220-01-604-3308
NSN 5965-01-425-5857
NSN 5935-01-026-0965
NSN 4140-00-779-4876
NSN 5905-01-569-0917
NSN 5996-01-606-0835
NSN 5915-01-431-9009
NSN 6110-00-752-2757
NSN 5996-00-907-5066
NSN 6620-01-521-9710