0.4 per cent oxygen, balance nitrogen
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 5905-01-106-8919
NSN 6145-01-021-4671
NSN 5945-01-232-4573
NSN 5960-01-129-4203
NSN 6150-01-350-9943
NSN 5855-01-426-5589
NSN 6610-01-175-3500
NSN 5945-00-902-5365
NSN 5960-00-275-7497
NSN 5996-01-478-4937
NSN 5895-00-106-7898
NSN 6685-00-490-5364