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 6145-00-150-5049
NSN 5990-01-429-6211
NSN 5999-01-242-9854
NSN 6620-00-006-6418
NSN 6220-00-240-6443
NSN 6610-01-163-4551
NSN 5895-01-408-6093
NSN 6320-01-029-4220
NSN 2925-00-902-3881
NSN 6645-01-273-9249
NSN 5950-01-501-6316
NSN 5990-01-492-6575