ISO 4437-1-2024 PDF

Full title and description

Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 1: General. This International Standard gives the general materials requirements and test-parameter definitions for polyethylene (PE) piping systems used to convey gaseous fuels and is intended to be used together with the other parts of the ISO 4437 series.

Abstract

This document specifies materials and the general aspects of polyethylene (PE) piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this document. In conjunction with ISO 4437‑2, ISO 4437‑3, ISO 4437‑4 and ISO 4437‑5 the document is applicable to PE pipes, fittings and valves, their joints, and joints with components of PE and other materials intended for use at a maximum operating pressure up to and including 10 bar (reference temperature 20 °C) and for operating temperatures between −20 °C and 40 °C.

General information

• Status: Published / Current.
• Publication date: February 2024 (Edition 2; various national catalogues report publication/approval dates in mid‑February 2024, e.g., 14 Feb 2024).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 75.200 (Petroleum products and natural gas handling equipment); 83.140.30 (Plastics pipes and fittings for non‑fluid use).
• Edition / version: Edition 2 (2024).
• Number of pages: 20 pages.

Scope

ISO 4437‑1:2024 covers the materials and general aspects of polyethylene (PE) piping systems for the supply of gaseous fuels and defines the test parameters for referenced test methods. It applies (in conjunction with ISO 4437‑2 to ‑5) to PE pipes, fittings, valves and their joints (including joints with components of other materials) intended for maximum operating pressures up to and including 10 bar at a reference temperature of 20 °C and for operating temperatures in the range −20 °C to 40 °C. The standard also indicates where derating coefficients (for temperatures above 20 °C) are given in ISO 4437‑5 and provides requirements on material classes and colour coding used across the series.

Key topics and requirements

• General materials requirements and definitions for PE compounds used in gas distribution systems.
• Specification of test‑parameter values for the test methods referenced across the ISO 4437 series (so that pipe, fitting and joint tests are consistently defined).
• Applicability limits: maximum operating pressure (MOP) up to and including 10 bar (at 20 °C) and operating temperature range −20 °C to 40 °C; reference to derating coefficients in ISO 4437‑5 for elevated temperatures.
• Inclusion of modern PE material classes and guidance (for example explicit guidance related to PE100‑RC and enhanced slow‑crack‑growth resistance in the 2024 edition).
• General requirements for pipes, fittings, valves and joints (materials, marking/colour, joint compatibility and selection responsibility falling to purchaser/specifier where national rules apply).

Typical use and users

Used by gas‑distribution utilities, pipeline designers and engineers, PE pipe and fitting manufacturers, testing laboratories, procurement/specification teams, regulatory authorities and standards committees. Typical applications include buried and service distribution mains and laterals for natural gas and other gaseous fuels within the stated pressure and temperature limits.

Related standards

ISO 4437‑1 is part of the ISO 4437 series; related parts include ISO 4437‑2 (Pipes), ISO 4437‑3 (Fittings), ISO 4437‑4 (Valves) and ISO 4437‑5 (Design, performance and derating coefficients). The 2024 edition replaces ISO 4437‑1:2014. Other regional/national standards for PE gas piping (for example EN standards and national variants such as JIS K documents) may also be applicable alongside ISO 4437 series depending on jurisdiction.

Keywords

polyethylene, PE, PE100‑RC, gas distribution, gaseous fuels, piping systems, buried pipelines, fittings, valves, joints, MOP (maximum operating pressure), derating, test parameters, ISO 4437.

FAQ

Q: What is this standard?

A: ISO 4437‑1:2024 is the second edition (2024) of the international standard that sets out materials, general requirements and test‑parameter definitions for polyethylene piping systems used to supply gaseous fuels.

Q: What does it cover?

A: It covers general materials aspects, required test‑parameter values for referenced test methods, and the general applicability of PE pipes, fittings, valves and joints used at MOPs up to and including 10 bar (reference 20 °C) and operating temperatures −20 °C to 40 °C; it is intended to be used with the other parts of the ISO 4437 series for full product and design requirements.

Q: Who typically uses it?

A: Gas utilities, pipeline designers and installers, manufacturers of PE pipes and fittings, test laboratories, procurement and specification teams, and regulators or conformity bodies involved with gas distribution systems.

Q: Is it current or superseded?

A: ISO 4437‑1:2024 is the current (published) edition and replaces ISO 4437‑1:2014. The standard is marked in ISO’s lifecycle as a published International Standard and is scheduled for periodic review.

Q: Is it part of a series?

A: Yes — it is Part 1 of the ISO 4437 series; related parts (and where to find detailed technical requirements) are ISO 4437‑2 (Pipes), ISO 4437‑3 (Fittings), ISO 4437‑4 (Valves) and ISO 4437‑5 (Derating/design parameters).

Q: What are the key keywords?

A: Polyethylene (PE), PE100‑RC, gas distribution, piping systems, fittings, valves, joints, MOP, derating coefficients, test parameters, ISO 4437.