# 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 of the experimental animal room should be 22oC (± 3oC). 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. For feeding, conventional laboratory diets may be used with an unlimited supply of drinking water. Animals may be group-caged by dose, but the number of animals per cage must not interfere with clear observations of each animal.

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Source: https://www.legislation.gov.uk/eudr/2004/73/annex/2B/division/B.1/division/1/division/1.4/division/1.4.2 (the official version)
Page: https://openlegislation.uk/eu-directive-2004-73/annex-2B/division-B.1/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.