309 



Substance 



U.N. number 



Pollution 



category for 



operational 



discharge 



(see reg. 3 



of annex ll)i 



II 



Residual 



concentration 



(percent 



by weight) 



applicable to 



category A 



substance only 



(see reg. 5(a) 



of annex II) 



III 



Ethylene dichloride 1184 B 



2-Ethylhexyl alcohol (C) 



2-Ethyl 3-propyl-acrolein _ (B) 



Formaldehyde (37 to 50 percent solution). 



Furfural 



Furf uryl alcohol 



Hexamethylene diamine 



Hydrofluoric acid (40 percent aqueous) 



Hydrogen peroxide (greater than 60 percent). 



Isopropylamine 



Mesityl oxide... 



Methyl Acrylate 



Methylene chloride. 



(B) 



C 

 B 

 B 



A 



2-Methyl-5-ethyl-pryidine (B) 



Monoisopropanolamine C 



Monomethyl ethanolamine C 



Mononitrobenzene C 



Mono-iso-propylamine C 



Naphthalene (molten).. 1334 A 



Naphthenic acids. (A) 



Nitric acid (90 percent) 2031/2032 C 



o-Nitrotoluene. 1664 C 



Nonyl alcohol.. (C) 



Nonyl phenol C 



iso-Octanol _ C 



n-Octanol C 



Oleum 1831 C 



Pentachloroethane 1669 



n-Pentane 1265 



Perchloroethylene (tetrachloroethylene) 1897 



Phenol 1671 



Phosphorus (elemental) 1338 



Phthalic Anhydride (molten) C 



beta-Propiolactone _. (B) 



n-Propyl acetate 1276 (C) 



n-Propylamine 1277 C 



Pyridine.... 1282 B 



Sodium biochromate (solution) C 



Sodium hydroxide 1824 C 



Sodium pentachlorophenate (solution) A 



Styrene monomer 2055 C 



Sulphuric acid 1830/1831/1832 



Tetra ethyl lead 1649 



Tetrahydro naphthalene 1 540 



Tetramethyl lead 1649 



Toluene 1294 



Toluene diisocyanate.. 2078 



Trichloroethane C 



Trichlorethylene ... 1710 B 



Triethylamine j 1296 C 



Trimethyl benzene (C) 



Tritolyl phosphate (Tricresyl phosphate) (B) 



Turpentine (wood) 1299 B 



Vinyl acetate. 1301 



Vinylidene chloride.. 1303 



p-Xylene _. 1307 



Xylene (mixed isomers) 1307 



C 

 A 

 C 

 A 

 C 

 (B) 



C 



(B) 

 C 

 C 



.1 

 (.1) 



.1 



I Brackets in col. II indicate that the category shown has been provisionally assigned and that further data is needed 

 •n order to complete the evaluation of the hazard of the substance concerned. 



