2018DIN EN ISO 13254:2018-01 Thermoplastics piping systems for non-pressure applications - Test method for watertightness (ISO 13254:2010); German version EN ISO 13254:2017
1995DIN EN 1053:1995 Plastics piping systems - Thermoplastics piping systems for non-pressure applications - Test method for watertightness; German version EN 1053:1995