Mixture contains total hydrocarbon as methane less than 0.1 ppm, carbon monoxide less than 0.5 ppm, carbon dioxide less than 1.0 ppm, water less than 5.0 ppm, oxygen 20.0 pct to 21.0 pct and balance nitrogen; mixture to be analyzed and certified to accuracy cited and recorded on weatherproof tag attached to valve under cap 1
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 6220-00-013-9523
NSN 5905-01-633-7443
NSN 6645-01-431-0732
NSN 5985-01-060-1516
NSN 2925-01-511-2667
NSN 5945-00-824-3718
NSN 5990-01-503-9804
NSN 6240-01-493-3252
NSN 6320-01-021-6633
NSN 5998-01-399-7144
NSN 5950-00-082-1616
NSN 5965-01-020-4104