Nationally Defined Values for Waste Code U156 Value Definition Page 26 CARBONOCHLORIDIC ACID, METHYL ESTER, (I,T) (OR) METHYL CHLOROCARBONATE (I,T) U157 3-METHYLCHOLANTHRENE (OR) BENZ[J]ACEANTHRYLENE, 1,2-DIHYDRO-3-METHYL- U158 4,4'-METHYLENEBIS(2-CHLOROANILINE) (OR) BENZENAMINE, 4,4'-METHYLENEBIS[2-CHLORO- U159 2-BUTANONE (I,T) (OR) METHYL ETHYL KETONE (MEK) (I,T) U160 2-BUTANONE, PEROXIDE (R,T) (OR) METHYL ETHYL KETONE PEROXIDE (R,T) U161 4-METHYL-2-PENTANONE (I) (OR) METHYL ISOBUTYL KETONE (I) (OR) PENTANOL, 4-METHYL- U162 2-PROPENOIC ACID, 2-METHYL-, METHYL ESTER (I,T) (OR) METHYL METHACRYLATE (I,T) U163 GUANIDINE, N-METHYL-N'-NITRO-N-NITROSO- (OR) MNNG U164 4(1H)-PYRIMIDINONE, 2,3-DIHYDRO-6-METHYL-2-THIOXO- (OR) METHYLTHIOURACIL U165 NAPHTHALENE U166 1,4-NAPHTHALENEDIONE (OR) 1,4-NAPHTHOQUINONE U167 1-NAPTHALENAMINE (OR) ALPHA-NAPHTHYLAMINE U168 2-NAPTHALENAMINE (OR) BETA-NAPHTHYLAMINE U169 BENZENE, NITRO- (OR) NITROBENZENE (I,T) U170 P-NITROPHENOL (I,T) (OR) PHENOL, 4-NITRO- U171 2-NITROPROPANE (I,T) (OR) PROPANE, 2-NITRO- (I,T) U172 1-BUTANAMINE, N-BUTYL-N-NITROSO- (OR) N-NITROSODI-N-BUTYLAMINE U173 ETHANOL, 2,2'-(NITROSOIMINO)BIS- (OR) N-NITROSODIETHANOLAMINE U174 ETHANAMINE, N-ETHYL-N-NITROSO- (OR) N-NITROSODIETHYLAMINE U175 DESCRIPTION U176 N-NITROSO-N-ETHYLUREA (OR) UREA, N-ETHYL-N-NITROSO- U177 N-NITROSO-N-METHYLUREA (OR) UREA, N-METHYL-N-NITROSO-