BS EN 489-1. District heating pipes. Bonded single and twin pipe systems for buried hot water networks. Part 1. Joint casing assemblies and thermal insulation for hot water networks in accordance with EN 13941-1— 27 стр.
Domestic appliances used for drinking water treatment not connected to water supply. Jug water filter systems. Safety and performance requirements, labeling and information to be supplied— 38 стр.