This European Standard is applicable toThe trenchless construction and testing of new drains and new sewers inThe ground, which are normally operating as gravity pipelines, formed using prefabricated pipes andTheir joints.The trenchless construction and testing of drains and sewers operating under pressure is also covered byThis European Standard together with prEN 805:1999 as appropriate.This European Standard also applies to trenchless replacement techniques. Renovation techniques for existing sewers and drains are not covered byThis European Standard.Methods of trenchless construction include-manned and unmanned techniques;- steerable and non-steerable techniques.NOTE 1:Mining or tunnelling (e.g. in situ construction orThe use of prefabricated segments) are not covered byThis European Standard although some parts may apply toThese methods. Additional requirements apply for mining and tunnelling methods forThe construction of drains and sewers.Additionally other local or national regulations should be taken into account, e.g. concerning health and safety, pavement installation, tolerances for deviation in line and level and requirements for leaktightness testing.NOTE 2:Requirements for associated pipeline installation work other than trenchless construction, e.g. for manholes and inspection chambers, are given in EN 1610, Construction and testing of drains and sewers
EN 12885:1999 history
1999EN 12885:1999 Biotechnology - Performance criteria for cell disrupters