Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-1: Space heating and DHW generation systems, combustion systems (boilers, biomass), Module M3-8-1, M8-8-1; German version EN 15316-4-1:2017
Edition 2017-09

Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2; German and English version prEN 15316-4-2:2022
Edition 2022-04

Information Processing Systems-Open Systems Interconnection-Internal Organization of the Network Layer
Edition 1988-07-01

Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-1: Space heating and DHW generation systems, combustion systems (boilers, biomass), Module M3-8-1, M8-8-1
Edition 2017

Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2
Edition 2017

Petroleum and natural gas industries - Pipeline transportation systems
Edition 2018-06-02

Petroleum and natural gas industry - Pipeline transportation systems - Pipeline integrity assessment specification
Edition 2023-07-26

Petroleum and natural gas industry - Pipeline transportation systems - Pipeline integrity management specification - Part 1: full-life cycle integrity management for onshore pipeline
Edition 2020-04-04

Petroleum and natural gas industries - Corrosion resistant alloy clad bends and fittings for pipeline transportation system - Part 2: Clad fittings
Edition 2023-03-15

Petroleum and natural gas industries - Corrosion resistant alloy clad bends and fittings for pipeline transportation system - Part 1: clad bends
Edition 2023-01-14