Building hardware - Corrosion resistance - Requirements and test methods; German version EN 1670:2007, Corrigendum to DIN EN 1670:2007-06; German version EN 1670:2007/AC:2008— 2 стр.
Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 3-1: Domestic hot water systems, characterisation of needs (tapping requirements); German version EN 15316-3-1:2007— 23 стр.
