33 cubic feet, 20.9%o2/n2
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 5990-00-389-0554
NSN 6620-01-497-3744
NSN 5920-00-023-2926
NSN 5920-01-655-6301
NSN 5915-01-384-3858
NSN 6620-01-204-3181
NSN 5855-00-821-7512
NSN 5945-00-925-3773
NSN 5950-00-402-9148
NSN 5905-01-060-6626
NSN 5910-01-032-5525
NSN 5950-01-399-8700