# Commission Directive 2004/73/EC of 29 April 2004 adapting to technical progress for the twenty-ninth time Council Directive 67/548/EEC on the approximation of the laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances (Text with EEA relevance), Division 1.4.2: Housing and feeding conditions

Extent: E+W+S+N.I.

The temperature in the experimental animal room should be 22 oC (± 3 oC). Although the relative humidity should be at least 30 % and preferably not exceed 70 % other than during room cleaning, the aim should be 50-60 %. Lighting should be artificial, the sequence being 12 hours light, 12 hours dark. Loud intermittent noise should be kept to a minimum. For feeding, conventional laboratory diets may be used with an unlimited supply of drinking water. The choice of diet may be influenced by the need to ensure a suitable admixture of a test substance when administered by this method. Animals may be housed individually, or be caged in small groups of the same sex.

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Source: https://www.legislation.gov.uk/eudr/2004/73/annex/2H/division/B.43/division/1/division/1.4/division/1.4.2 (the official version)
Page: https://openlegislation.uk/eu-directive-2004-73/annex-2H/division-B.43/division-1/division-1.4/division-1.4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.