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 7035-01-155-0153
NSN 6135-00-628-1142
NSN 5925-01-502-9177
NSN 6130-00-991-0566
NSN 6145-00-558-1834
NSN 6650-00-035-9297
NSN 6145-01-262-4781
NSN 5835-01-189-6095
NSN 6105-01-544-5601
NSN 5990-00-883-2962
NSN 5996-00-615-9665
NSN 5998-00-580-3664