9. Industrial fluids

As the concept of industrial product can be defined by its use in quantity, all fluids can meet this definition. This definition should be supplemented by their generally hazardous nature.

The use of solvents, acids, flammable or radioactive products, for example, and the design of networks specific to them, are the subject of specific studies which must be carried out in accordance with the spirit of the regulations and require the approval of the competent authorities.