This document describes the functional requirements for pipelines for maximum operating pressure over maximum operating pressure greater than 16 bar.
This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies:
——onshore:
——from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises;
——pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc.;
——high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C;
——steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings;
——gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline.
Gas infrastructures covered by this document begin after the gas producer's metering station.
installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations.
A schematic representation of pipelines for gas infrastructure is given in Figure 1.
This document can also be applied to the repurposing of existing pipelines.
ASME B16.47 Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard*, 2025-05-30 Update
EN 10204 Metallic products - Types of inspection documents*, 2026-02-05 Update
EN 10289 Steel tubes and fittings for onshore and offshore pipelines - External liquid applied epoxy and epoxy-modified coatings
EN 10290 Steel tubes and fittings for onshore and offshore pipelines - External liquid applied polyurethane and polyurethane-modified coatings
EN 1092-1 Flanges and their joints - Circular flanges for pipes@ valves@ fittings and accessories@ PN designated - Part 1: Steel flanges
EN 12186 Gas infrastructure - Gas pressure control stations for transmission and distribution - Functional requirements*, 2025-12-10 Update
EN 12327 Gas infrastructure - Pressure testing, commissioning and decommissioning procedures - Functional requirements
EN 12560-1 Flanges and their joints - Gaskets for Class-designated flanges - Part 1: Non-metallic flat gaskets with or without inserts
EN 12560-2 Flanges and their joints - Dimensions of gaskets for Classdesignated flanges - Part 2: Spiral wound gaskets for use with steel flanges
EN 12560-3 Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
EN 12560-4 Flanges and Their Joints - Gaskets for Class-Designated Flanges - Part 4: Corrugated, Flat or Grooved Metallic and Filled Metallic Gaskets for Use with Steel Flanges
EN 12560-5 Flanges and their joints - Gaskets for Class-designated flanges - Part 5: Metallic ring joint gaskets for use with steel flanges
EN 12560-6 Flanges and their joints - Gaskets for class-designated flanges - Part 6: Covered serrated metal gaskets for uses with steel flanges*, 2026-02-05 Update
EN 12583 Gas Infrastructure - Compressor stations - Functional requirements
EN 12732 Gas infrastructure - Welding steel pipework - Functional requirements
EN 14141 Valves for natural gas transportation in pipelines - Performance requirements and tests
EN 1515-2 Flanges and their joints - Bolting - Part 2: Classification of bolt materials for steel flanges, PN designated*, 2026-02-05 Update
EN 1515-3 Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, class designated
EN 1515-4 Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
EN 1759-1 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, class designated - Part 1: Steel flanges, NPS 1/2 to 24*, 2026-02-05 Update
EN 1998-4 Eurocode 8 - Design of structures for earthquake resistance - Part 4: Silos, tanks and pipelines
EN ISO 12944-1 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 1: General introduction (ISO 12944-1:2017)
EN ISO 12944-2 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 2: Classification of environments (ISO 12944-2:2017)
EN ISO 12944-3 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 3: Design considerations (ISO 12944-3:2017)
EN ISO 12944-4 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4: Types of surface and surface preparation
EN ISO 12944-5 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems (ISO 12944-5:2019)
EN ISO 12944-6 Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems - Part 6: Laboratory Performance Test Methods
EN ISO 12944-7 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 7: Execution and supervision of paint work
EN ISO 12944-8 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 8: Development of specifications for new work and maintenance
EN ISO 15589-1 Petroleum@ petrochemical and natural gas industries - Cathodic protection of pipeline systems - Part 1: On-land pipelines
EN ISO 15741 Paints and varnishes - Friction-reduction coatings for the interior of on- and offshore steel pipelines for non-corrosive gases (ISO 15741:2016)
EN ISO 21809-1 Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 1: Polyolefin coatings (3-layer PE and 3-layer PP) (ISO 21809-1:2018)
EN ISO 21809-2 Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 2: Single layer fusion-bonded epoxy coatings (ISO 21809-2:2014)
EN ISO 21809-3 Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings - Amendment 1: Introduction of mesh-backed coating systems (ISO 21809-3:2016/Amd 1:2020)
EN ISO 3183:2019 Petroleum and natural gas industries - Steel pipe for pipeline transportation systems (ISO 3183:2019)
EN ISO 6892-1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2019)
BS EN 1594:2024 history
2024BS EN 1594:2024 Gas infrastructure. Pipelines for maximum operating pressure over 16 bar. Functional requirements
2013BS EN 1594:2013 Gas infrastructure. Pipelines for maximum operating pressure over 16 bar. Functional requirements
2009BS EN 1594:2009 Gas supply systems. Pipelines for maximum operating pressure over 16 bar. Functional requirements
2000BS EN 1594:2000 Gas supply systems. Pipelines for maximum operating pressure over 16 bar. Functional requirements