# The Feeding Stuffs Regulations 1991, Chapter B


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EEC No.
Name or description
Chemical formula
Kind of animal
Maximum content (mg/kg in complete feeding stuff)
E222
Sodium hydrogensulphite (sodium bisulphite) } and fish Not permitted in unprocessed meat
NaHSO3
Dogs and Cats
500 alone or together expressed as SO2
E223
diSodium disulphite (sodium metabisulphite) } and fish Not permitted in unprocessed meat and fish
Na2S2O5
Dogs and Cats
500 alone or together expressed as SO2
E250
Sodium nitrite
NaNO2
Dogs and Cats
100 (canned feeding stuffs only)
E214
Ethyl 4-hydroxybenzoate
C9H10O3
Pet Animals
No limit
E215
Sodium ethyl 4-hydroxybenzoate
C9H9O3Na
Pet Animals
No limit
E216
Propyl 4-hydroxybenzoate
C10H12O3
Pet Animals
No limit
E217
Sodium propyl 4-hydroxybenzoate
C10H11O3Na
Pet Animals
No limit
E218
Methyl 4-hydroxybenzoate
C8H8O3
Pet Animals
No limit
E219
Sodium methyl 4-hydroxybenzoate
C8H7O3Na
Pet Animals
No limit
E490
Propane-1, 2-diol
C3H8O2
Dogs
53000
E240
Formaldehyde
CH2O
All species of animals
No limit (for silage only)
Pigs up to the age of six months
600 (in skimmed milk only)

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Source: https://www.legislation.gov.uk/uksi/1991/2840/schedule/4/part/VIII/chapter/B (the official version)
Page: https://openlegislation.uk/feeding-stuffs-regulations-1991/schedule-4/part-VIII/chapter-B
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.