Procedural Controls

The objective of engineering controls is to minimize the influence of human factors. As the risk of allergy cannot be eliminated by removing the allergen hazard completely at the source or by engineering solutions, additional controls are essential. The emphasis of procedures is to control choice so that work is carried out in a way that minimizes the levels and spread of environmental allergen.

Reduction of the Number of Exposed Persons

A first strategy of prevention is to minimize the number of animal-exposed personnel. One way is to reduce use of animals, increasing the use of alternative methods, such as using cell lines in the production of antibodies, or toxicity tests that do not involve animals. Another way is concentrating animal work so that fewer individuals need be exposed. An example: through the installation of a labor-saving device,

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