1.95 by volume methane and 2.05 by volume methane and 98.0 by volume 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 5950-00-177-8075
NSN 6150-01-606-7790
NSN 6105-01-445-7182
NSN 5915-01-417-2058
NSN 6685-01-385-7049
NSN 2925-00-795-4064
NSN 5999-01-205-4017
NSN 6220-01-310-5018
NSN 6135-00-942-7970
NSN 5960-00-707-3335
NSN 6645-01-273-2462
NSN 6110-01-204-8841