Quality management systems - Requirements (ISO 9001:2008); Trilingual version EN ISO 9001:2008, Corrigendum to DIN EN ISO 9001:2008-12; Trilingual version EN ISO 9001:2008/AC:2009— 20 стр.
Corrosion of metals - Corrosion of metallic materials under corrosion load by water inside of tubes, tanks and apparatus - Part 6: Influence of the composition of drinking water— 13 стр.
Contract procedures for building works - Part C: General technical specifications for building works; Systems for heating and central water heating— 21 стр.
Heating plants for district heating - Part 1: Safety requirements for domestic substations, stations and domestic systems to be connected to hot-water district heating networks— 35 стр.