To comply with legal obligations! The employer is obliged to mark the pipelines for the transport of dangerous substances in accordance with European Directive 92/58. This guideline has been confirmed in the Netherlands by Royal Decree 530 “Safety and health signage” and in Belgium by Royal Decree of 17 June 1997 (Stb. 19/09/97).
In addition, various standards indicate how pipes should be identified: for example, by assigning a specific group color, by indicating which product is transported in the pipe and which hazard symbol applies to it, not forgetting the direction in which the liquid is directed. the pipe is flowing.