# The Merchant Shipping (Control of Pollution by Noxious Liquid Substances in Bulk) Regulations 1987, Schedule 1: LIST OF NOXIOUS LIQUID SUBSTANCES CARRIED IN BULK


Substance
UN Number
Pollution Category for operational discharge
Residual concentration (percent by weight)
I
II
III Outside special areas
IV Within special areas
* UN number 2789 refers to more than 80% solution and 2790 to between 10% and 80% solution.
** UN number refers to 10—35%.
*** UN number 1114 applies to Benzene.
**** UN number 2574 applies to Tricresyl phosphate containing more than 3% ortho-isomer.
Acetaldehyde
1089
C
Acetic acid
2789* 2790*
C
Acetic anhydride
1715
C
Acetone cyanohydrin
1541
A
0.1
0.05
Acetophenone
D
Acetyl chloride
1717
C
Acrylamide solution (50% or less)
2074
D
Acrylic acid
2218
D
Acrylonitrile
1093
B
Adiponitrile
2205
D
Alcohols, C4, C5, C6 mixtures
D
Alcohols, C5, C6 as individual alcohols
D
Alcohols, C7, C8, C9 as individuals and mixtures
C
Alcohols, C10, C11, C12 as individuals and mixtures
B
Alcohol ethoxylate (higher secondary)
D
Alcohol (C13/C15) poly(3—11) ethoxylates
B
Alkyl acrylate vinyl pyridine copolymer in toluene
C
Alkylamine mixtures
C
Alkyl (C9—C17) benzene mixtures (straight or branched chain)
D
Alkyl benzene sulphonate (branched chain)
B
Alkyl benzene sulphonate (straight chain)
C
Alkyl benzene sulphonic acid
2584 2586
C
Allyl alcohol
1098
B
Allyl chloride
1100
B
2-(2-Aminoethoxy) ethanol
3055
D
Aminoethylethanolamine
D
N-Aminoethylpiperazine
2815
D
Ammonia aqueous (28% or less)
2672**
C
Ammonium nitrate solution (93% or less)
2426
D
Ammonium sulphate solution
D
Ammonium sulphide solution (45% or less)
2683
B
Amyl acetate, commercial
1104
C
n-Amyl acetate
1104
C
sec-Amyl acetate
1104
C
n-Amyl alcohol
1105
D
sec-Amyl alcohol
1105
D
Amyl alcohol, primary
1105
D
Aniline
1547
C
Benzaldehyde
C
Benzene and mixtures having 10% benzene or more
1114***
C
Benzene sulphonyl chloride
2225
D
Benzyl acetate
C
Benzyl alcohol
C
Benzyl chloride
1738
B
Butene oligomer
D
n-Butyl acetate
1123
C
sec-Butyl acetate
1123
D
n-Butyl acrylate
2348
D
Butylamine (all isomers)
1125 (normal) 1214 (iso)
C
Butyl benzyl phthalate
A
0.1
0.05
n-Butyl butyrate
B
Butyl/Decyl/Cetyl/Eicosyl methacrylate mixture
D
Butylene glycol
D
1,2-Butylene oxide
3022
C
n-Butyl ether
1149
C
Butyl lactate
D
Butyl methacrylate
D
n-Butyraldehyde
1129
B
Butyric acid
2820
B
gamma-Butyrolactone
D
Calcium alkyl salicylate
D
Calcium chloride solution
D
Calcium hydroxide solution
D
Calcium hypochlorite solution
B
Calcium naphthenate in mineral oil
A
0.1
0.05
Camphor oil
1130
B
Caprolactam
D
Carbolic oil
A
0.1
0.05
Carbon disulphide
1131
A
0.01
0.005
Carbon tetrachloride
1846
B
Cashew nut shell oil (untreated)
D
Castor oil
D
Chloroacetic acid
1750
C
Chloroacetone
1695
C
Chlorobenzene
1134
B
Chloroform
1888
B
1-Chloroheptane
A
0.1
0.05
Chlorohydrins, crude
D
o-Chloronitrobenzene
1578
B
2-Chloropropionic acid
2511
C
3-Chloropropionic acid
C
Chlorosulphonic acid
1754
C
m-Chlorotoluene
2238
B
o-Chlorotoluene
2238
A
0.1
0.05
p-Chlorotoluene
2238
B
Chlorotoluene (mixed isomers)
2238
A
0.1
0.05
Choline chloride solution
D
Citric acid
D
Coal tar naphtha solvent
B
Cobalt naphthenate in solvent naphtha
A
0.1
0.05
Coconut oil
D
Coconut oil, fatty acid methyl ester
D
Cod liver oil
D
Corn oil
D
Cotton seed oil
D
Creosote (coal tar)
C
Creosote (wood)
A
0.1
0.05
Cresol (mixed isomers)
2076
A
0.1
0.05
Cresyl diphenyl phosphate
A
0.1
0.05
Cresylic acid
2022
A
0.1
0.05
Crotonaldehyde
1143
B
Cycloheptane
2241
D
Cyclohexane
1145
C
Cyclohexane/Cyclohexanol mixture
C
Cyclohexanol
C
Cyclohexanone
1915
D
Cyclohexylamine
2357
C
p-Cymene
2046
C
Decahydronaphthalene
1147
D
n-Decaldehyde
B
Decane
D
Decene
B
Decyl acrylate
A
0.1
0.05
Decyl alcohol (all isomers)
B
Diacetone alcohol
1148
D
Dialkyl (C7—C9) phthalates
D
Dialkyl (C9—C13) phthalates
D
Dibenzyl ether
C
Dibutylamine
C
Dibutyl phthalate
A
0.1
0.05
m-Dichlorobenzene
B
o-Dichlorobenzene
1591
B
1,1-Dichloroethane
2362
B
1,2-Dichloroethylene
1150
D
Dichloroethyl ether
1916
B
1,6-Dichlorohexane
B
2,2-Dichloroisopropyl ether
2490
C
Dichloromethane
1593
D
2,4-Dichlorophenol
2021
A
0.1
0.05
2,4-Dichlorophenoxyacetic acid
A
0.1
0.05
2,4-Dichlorophenoxyacetic acid, diethanolamine salt solution
A
0.1
0.05
2,4-Dichlorophenoxyacetic acid, dimethylamine salt (70% or less) solution
A
0.1
0.05
2,4-Dichlorophenoxyacetic acid, triisopropanolamine salt solution
A
0.1
0.05
1,1-Dichloropropane
B
1,2-Dichloropropane
1279
B
1,3-Dichloropropane
B
1,3-Dichloropropene
2047
B
Dichloropropene/Dichloropropane mixtures
B
2,2-Dichloropropionic acid
D
Dichloropropyl ether
B
Diethylamine
1154
C
Diethylaminoethanol
2686
C
Diethylbenzene
2049
C
Diethyl carbonate
2366
D
Diethylene glycol dibutyl ether
D
Diethylene glycol butyl ether acetate
D
Diethylene glycol ethyl ether acetate
D
Diethylene glycol methyl ether
C
Diethylene glycol methyl ether acetate
D
Diethylenetriamine
2079
D
Di(2-ethylhexyl) adipate
D
Di(2-ethylhexyl) phosphoric acid
1902
C
Di(2-ethylhexyl) phthalate
D
Diethyl malonate
C
Diethyl phthalate
C
Diethyl sulphate
1594
B
Diglycidyl ether of Bisphenol A
B
1,4-Dihydro-9,10-dihydroxy anthracene, disodium salt solution
D
Diisobutylamine
2361
C
Diisobutylene
2050
B
Diisobutyl ketone
1157
D
Diisobutyl phthalate
B
Diisodecyl phthalate
D
Diisononyl adipate
D
Diisononyl phthalate
D
Diisopropanolamine
C
Diisopropylamine
1158
C
Diisopropylbenzene (all isomers)
A
0.1
0.05
Diisopropyl naphthalene
D
Dimethyl acetamide
B
Dimethylamine solution (45% or less)
1160
C
Dimethylamine solution (greater than 45% but not greater than 55%)
1160
C
Dimethylamine solution (greater than 55% but not greater than 65%)
1160
C
N,N-Dimethylcyclohexylamine
2264
C
Dimethylethanolamine
2051
D
Dimethylformamide
2265
D
Dimethyl phthalate
C
Dinitrotoluene (molten)
1600
B
Dinonyl phthalate
D
1,4-Dioxane
1165
D
Dipentene
2052
C
Diphenyl/Diphenyl oxide mixtures
A
0.1
0.05
Diphenyl ether
A
0.1
0.05
Diphenylmethane diisocyanate
2489
B
Diphenyl oxide/Diphenyl ether mixture
A
0.1
0.05
Di—n-propylamine
2383
C
Dipropylene glycol methyl ether
D
Ditridecyl phthalate
D
Diundecyl phthalate
D
Divinyl acetylene
D
Dodecane
D
Dodecene (all isomers)
B
Dodecyl alcohol
B
Dodecylbenzene
C
Dodecyl diphenyl oxide disulphonate solution
B
Dodecylphenol
A
0.1
0.05
Epichlorohydrin
2023
C
Ethanolamine
2491
D
2-Ethoxyethanol
1171
D
2-Ethoxyethyl acetate
1172
C
Ethyl acetate
1173
D
Ethyl acetoacetate
D
Ethyl acrylate
1917
B
Ethylamine
1036
C
Ethylamine solutions (72% or less)
2270
C
Ethyl amyl ketone
2271
C
Ethylbenzene
1175
C
N-Ethylbutylamine
C
Ethylcyclohexane
D
N-Ethylcyclohexylamine
D
Ethylene chlorohydrin
1135
C
Ethylene cyanohydrin
D
Ethylenediamine
1604
C
Ethylenediamine, tetraacetic acid, tetrasodium salt solution
D
Ethylene dibromide
1605
B
Ethylene dichloride
1184
B
Ethylene glycol
D
Ethylene glycol methyl butyl ether
D
Ethylene glycol acetate
D
Ethylene glycol butyl ether acetate
D
Ethylene glycol methyl ether
1188
D
Ethylene glycol methyl ether acetate
1189
D
Ethylene glycol phenyl ether
D
Ethylene glycol phenyl ether/Diethylene glycol phenyl ether mixture
D
Ethylene oxide/Propylene oxide mixtures with an ethylene oxide content of not more than 30% by weight
2983
D
2-Ethylhexanoic acid
D
2-Ethylhexyl acrylate
D
2-Ethylhexylamine
2276
B
Ethylidene norbornene
B
Ethyl lactate
1192
D
Ethyl methacrylate
2277
D
o-Ethyl phenol
A
0.1
0.05
2-Ethyl-3-propylacrolein
B
Ethyltoluene
B
Fatty alcohols (C12—C20)
B
Ferric chloride solution
2582
C
Ferric hydroxyethyl ethylenediamine triacetic acid, trisodium salt solution
D
Fish oil
D
Formaldehyde solutions (45% or less)
1198 2209
C
Formamide
D
Formic acid
1779
D
Fumaric adduct of rosin, water dispersion
B
Furfural
1199
C
Furfuryl alcohol
2874
C
Glutaraldehyde solutions (50% or less)
D
Glycidyl ester of C10 tryalkyl acetic acid
B
Ground nut oil
D
Heptanoic acid
D
Heptanol (all isomers)
C
Heptene (mixed isomers)
C
Heptyl acetate
B
Hexahydrocymene
C
Hexamethylenediamine solution
1783
C
Hexamethylenediamine adipate (50% in water)
D
Hexamethyleneimine
2493
C
1-Hexanol
2282
D
1-Hexene
2370
C
Hexyl acetate
1233
B
Hydrochloric acid
1789
D
Hydrogen peroxide solutions (over 60% but not over 70%)
2015
C
Hydrogen peroxide solutions (over 8% but not over 60%)
2014 2984
C
2-Hydroxyethyl acrylate
B
N-(Hydroxyethyl) ethylene diamine triacetic acid, trisodium salt solution
D
Iron chloride, copper chloride mixture
A
0.1
0.05
Isoamyl acetate
1104
C
Isoamyl alcohol
1105
D
Isobutyl acetate
1213
C
Isobutyl acrylate
2527
D
Isobutyl formate
2393
D
Isobutyl formate/Isobutanol mixtures
C
Isobutyl methacrylate
2283
D
Isobutyraldehyde
2045
C
Isodecaldehyde
C
Isodecyl acrylate
A
0.1
0.05
Isononanoic acid
D
Isooctane
1262
D
Isopentane
1265
D
Isophorone
D
Isophorone diamine
2289
D
Isophorone diisocyanate
2290
B
Isoprene
1218
C
Isopropanolamine
C
Isopropylamine
1221
C
Isopropylbenzene
1918
B
Isopropyl cyclohexane
D
Isopropyl ether
1159
D
Isovaleraldehyde
2058
C
Lactic acid
D
Lactonitrile solution (80% or less)
B
Latex (ammonia inhibited)
D
Linseed oil
D
Maleic anhydride
2215
D
Mercaptobenzothiazol, sodium salt solution
B
Mesityl oxide
1229
D
Methacrylic acid
2531
D
Methacrylic resin in 1,2-Dichloroethane solution
D
Methacrylonitrile
B
Methanethiol
A
0.1
0.05
3-Methoxybutyl acetate
2708
D
Methyl acrylate
1919
C
Methylamine solutions (42% or less)
1235
C
Methylamyl acetate
1233
C
Methylamyl alcohol
2053
C
Methyl amyl ketone
1110
C
Methyl benzoate
2938
B
Methyltert-butyl ether
2398
D
2-Methyl butyraldehyde
C
4,4'-Methylene dianiline and its higher molecular weight polymers/o-Dichlorobenzene mixtures
B
Methylethanolamine
C
2-Methyl-6-ethylaniline
C
Methyl ethyl ketone
1193
D
2-Methyl-5-ethyl pyridine
2300
B
Methyl formate
1243
D
Methyl isobutyl ketone
1245
D
Methyl methacrylate
1247
D
alpha-Methylnaphthalene
A
0.1
0.05
beta-Methylnaphthalene
A
0.1
0.05
Methyl naphthalene
A
0.1
0.05
2-Methyl-1-pentene
2288
C
Methylpropyl ketone
1249
D
2-Methylpyridine
2313
B
4-Methylpyridine
2313
B
N-Methyl-2-pyrrolidone
B
Methyl salicylate
B
alpha-Methylstyrene
2303
A
0.1
0.05
Morpholine
2054
D
Motor fuel anti-knock compounds
1649
A
0.1
0.05
Naphthalene (molten)
2304
A
0.1
0.05
Naphthenic acids
A
0.1
0.05
Neodecanoic acid
B
Nitrating acid (mixture of sulphuric and nitric acids)
1796
C
Nitric acid (less than 70%)
2031
C
Nitric acid (70% and over)
2031
C
2032
Nitrilotriacetic acid, trisodium salt solution
D
Nitrobenzene
1662
B
Nitroethane
2842
D
Nitromethane
1261
D
o-Nitrophenol (molten)
1663
B
1-or 2-Nitropropane
2608
D
Nitropropane (60%)/Nitroethane (40%) mixture
1993
D
Nitrotoluenes
1664
C
Nonane
1920
D
Nonanoic acid
D
Nonene
B
Nonyl alcohol
C
Nonylphenol
A
0.1
0.05
Nonylphenol poly (4—12) ethoxylates
B
9,12-Octadecadienoic acid (Linoleic acid)
D
9,12,15-Octadecatrienoic acid (Linolenic acid)
D
Octane
1262
D
Octanol (all isomers)
C
Octene (all isomers)
B
n-Octyl acetate
D
Octyl decyl phthalate
D
Olefins, straight chain, mixtures
B
Olefins (C6—C8 mixtures)
B
alpha Olefins (C6—C18 mixtures)
B
Oleic acid
D
Oleum
1831
C
Olive oil
D
Oxalic acid (10—25%)
D
Palm nut oil
D
Palm oil
D
Palm oil, methyl ester
D
Palm stearin
D
n-Paraffins (C10-C20)
D
Paraldehyde
1264
C
Pentachloroethane
1669
B
1,3-Pentadiene
C
Pentaethylenehexamine/Tetraethylenepentamine mixture
D
n-Pentane
1265
C
1-Pentanol
1105
D
2-Pentanol
1105
D
3-Pentanol
1105
D
Pentene (all isomers)
C
Perchloroethylene
1897
B
Phenol
2312
B
1-Phenyl-1-xylyl ethane
C
Phosphoric acid
1805
D
Phosphorus, yellow or white
2447
A
0.01
0.005
Phosphorus oxy-chloride
1810
D
Phosphorus trichloride
1809
D
Phthalic anhydride
2214
C
Pinene
2368
A
0.1
0.05
Polyalkylene glycol butyl ether
D
Polyethylene polyamines
2734 2735
C
Polymethylene polyphenyl isocyanate
2206 2207
D
Polypropylene glycols
D
Potassium hydroxide solution
1814
C
Potassium silicate solution
D
n-Propanolamine
C
beta-Propiolactone
D
Propionaldehyde
1275
D
Propionic acid
1848
D
Propionic anhydride
2496
C
Propionitrile
2404
C
n-Propyl acetate
1276
D
n-Propyl alcohol
1274
D
n-Propylamine
1277
C
n-Propyl benzene
2364
C
n-Propyl chloride
1278
B
Propylene dimer
C
Propylene glycol ethyl ether
D
Propylene glycol methyl ether
D
Propylene oxide
1280
D
Propylene trimer
2057
B
Pyridine
1282
B
Rape seed oil
D
Rice bran oil
D
Rosin
A
0.1
0.05
Rosin soap (disproportionated) solution
B
Safflower oil
D
Sesame oil
D
Silicon tetrachloride
1818
D
Sodium aluminate solution
1819
C
Sodium borohydride (15% or less)/Sodium hydroxide solution
C
Sodium dichromate solution (70% or less)
B
Sodium hydrogen sulphite solution
2693
D
Sodium hydrosulphide solution (45% or less)
2949
B
Sodium hydrosulphide/Ammonium sulphide solution
B
Sodium hydroxide solution
1824
D
Sodium hypochlorite solution (15% or less)
1791
B
Sodium nitrite solution
1577
B
Sodium silicate solution
D
Sodium sulphide solution
1849
B
Sodium sulphite solution
C
Soya bean oil
D
Sperm oil
D
Styrene monomer
2055
B
Sulphuric acid
1830
C
Sulphuric acid, spent
1832
C
Sulphurous acid
1833
C
Sunflower oil
D
Tall oil, crude and distilled
A
0.1
0.05
Tall oil fatty acid (resin acids less than 20%)
C
Tall oil soap (disproportionated) solution
B
Tallow
D
Tannic acid
C
Tetrachloroethane
1702
B
Tetraethylenepentamine
2320
D
Tetrahydrofuran
2056
D
Tetrahydronaphthalene
C
1,2,3,5-Tetramethyl benzene
C
Titanium tetrachloride
1838
D
Toluene
1294
C
Toluenediamine
1709
C
Toluene diisocyanate
2078
C
o-Toluidine
1708
C
Tributyl phosphate
B
1,2,4-Trichlorobenzene
2321
B
1,1,1-Trichloroethane
2831
B
1,1,2-Trichloroethane
B
Trichloroethylene
1710
B
1,2,3-Trichloropropane
B
1,1,2-Trichloro-1,2,2-trifluoroethane
C
Tricresyl phosphate (containing less than 1% ortho-isomer)
A
0.1
0.05
Tricresyl phosphate (containing 1% or more ortho-isomer)
2574****
A
0.1
0.05
Triethanolamine
D
Triethylamine
1296
C
Triethylbenzene
A
0.1
0.05
Triethylene glycol methyl ether
D
Triethylenetetramine
2259
D
Triethyl phosphate
D
Triisopropanolamine
D
Trimethylacetic acid
D
Trimethylamine
C
1,2,3-Trimethylbenzene
B
1,2,4-Trimethylbenzene
B
1,3,5-Trimethylbenzene
2325
B
Trimethylhexamethylene diamine (2,2,4-and 2,4,4-isomers)
2327
D
Trimethylhexamethylene diisocyanate (2,2,4-and 2,4,4-isomers)
2328
B
Trimethylol propane polyethyoxylate
D
2,2,4-Trimethyl-1,3-pentanediol-1-isobutyrate
C
Tripropylene glycol methyl ether
D
Trixylyl phosphate
A
0.1
0.05
Tung oil
D
Turpentine
1299
B
Undecane
2330
D
1-Undecene
B
Undecyl alcohol
B
Urea, ammonium nitrate solution
D
Urea, ammonium phosphate solution
D
Urea, ammonium nitrate solution (containing aqua ammonia)
C
n-Valeraldehyde
2058
D
Vinyl acetate
1301
C
Vinyl ethyl ether
1302
C
Vinylidene chloride
1303
B
Vinyl neodecanoate
C
Vinyl toluene
2618
A
0.1
0.05
White spirit, low (15—20%) aromatic
1300
B
Xylene
1307
C
Xylenol
2261
B

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Source: https://www.legislation.gov.uk/uksi/1987/551/schedule/1 (the official version)
Page: https://openlegislation.uk/merchant-shipping-control-of-pollution-by-noxious-liquid-substances-in-bulk-regulations-1987/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.