78004245
Apr 14, 2000
CHEMICAL REAGENTS, NAMELY, UREA, AMMONIA, AND AMMONIUM SALTS USED TO REDUCE NITROUS OXIDE EMISSIONS FROM INTERNAL COMBUSTION ENGINES, TURBINE ENGINES, INCINERATORS, FURNACES AND BOILERS, WHEN USING SELECTIVE CATALYTIC REDUCTION OF NITROUS OXIDE AND/OR SELECTIVE NONCATALYTIC REDUCTION OF NITROUS OXIDE EQUIPMENT
Chemicals