This method is for the determination of total nitrogen in liquefied petroleum gases in the region of 0.1 to several hundred parts per million.

UOP 432-65T
Original price was: $287.00.$143.00Current price is: $143.00.
Total Nitrogen in Liquefied Petroleum Gases by Acid Extraction-Kjeldahl Procedure
UOP LLC, A Honeywell Company , 01/01/1965