District heating pipes - Pre-insulated flexible pipe systems - Part 2: Bonded plastic service pipes - Requirements and test methods; German version EN 15632-2:2010/prA1:2013
District heating pipes - Pre-insulated flexible pipe systems - Part 2: Bonded plastic service pipes - Requirements and test methods; German version EN 15632-2:2010+A1:2014— 13 стр.