2. Types of laboratories, their risks and different building classifications

2.1 Chemical laboratories

In these laboratories, researchers usually handle relatively small quantities of liquid, solid or gaseous products (from a few milligrams to a few hundred grams...). However, the large number of manipulations carried out at the same time can lead to a relatively large quantity of products in the premises (up to 100 kg).

It is not uncommon to find over a thousand product references with very different physico-chemical and toxic properties in a single laboratory, some of which may be incompatible, leading to sometimes violent reactions. All types of hazardous products are present in these laboratories.

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