This European Standard identifies the requirements, the basic performance criteria and evaluation of conformity for unreinforced, reinforced and prestressed precast products made of compact light-, normal- and heavyweight concrete (oven-dry density of 800-2000 kg/m3, 2000-2600 kg/m3 and more than 2600 kg/m3 respectively) with no appreciable amount of entrapped air other than entrained air. It does not cover prefabricated reinforced components of lightweight aggregate concrete with open structure. This standard is of general use for all types of precast products and it may be used as a common reference in specific product standards (see Foreword). If a specific product standard exists it takes precedence over this standard. The precast products dealt with in this standard are factory produced for building and civil engineering works, in series or individually. This standard may also be applied to products manufactured in temporary plants on site if the production is protected against adverse weather conditions and controlled following clause 6 provisions.