Plastic piping systems - Mechanical joints between fittings and pressure pipes - Test method for leaktightness under negative pressure (ISO/DIS 3459:2013); German version prEN ISO 3459:2013
Plastic piping systems - Mechanical joints between fittings and pressure pipes - Test method for leaktightness under negative pressure (ISO 3459:2015); German and English version EN ISO 3459:2015— 22 стр.
