Describes requirements for the evaluation of conformity of products manufactured from vitrified clay and other materials (referred to as "products") specified in the following standards: - pipes, fittings and joints according to prEN 295-1; - adapters, connectors and flexible couplings according to prEN 295-4; - perforated pipes and fittings according to prEN 295-5; - components of manholes and inspection chambers according to prEN 295-6; and - pipes and joints for pipe jacking according to prEN 295-7.