ISO 4427-2:2019
Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply — Part 2: Pipes

Standard No.

ISO 4427-2:2019

Release Date

2019

Published By

International Organization for Standardization (ISO)

Status

Be replaced 2023-02

Replace By

ISO 4427-2:2019/Amd 1:2023

Latest

ISO 4427-2:2019/Amd 1:2023

Scope

This document specifies the pipes made from polyethylene (PE) for buried or above ground applications, intended for the conveyance of: — water for human consumption; — raw water prior to treatment; — drainage and sewerage under pressure; — vacuum sewer systems; — water for other purposes. NOTE 1 The intended uses include sea outfalls, laid in water and pipes suspended below bridges. Pipes complying with this document are not intended for the transport of water intended for human consumption in contaminated soils unless special consideration has been taken. NOTE 2 For example, ISO 21004 provides an alternative solution for use in contaminated soils. See Reference [3] in the Bibliography. This document specifies three types of pipe: — PE pipes (outside diameter dn), including any identification stripes; — PE pipes with co-extruded layers on either or both the outside and/or inside of the pipe (total outside diameter dn) where all layers have the same MRS rating; — PE pipes (outside diameter dn) having a peelable and contiguous thermoplastics additional layer on the outside of the pipe (“coated pipe”). This document also specifies the test parameters for the test methods referred to in this document. In conjunction with the other parts of the ISO 4427 series, this document is applicable to PE pipes, their joints and to joints with components made of PE and other materials, intended to be used under the following conditions: a) a maximum allowable operating pressure (PFA) up to and including 25 bar1); b) an operating temperature of 20 °C as the reference temperature. NOTE 3 For other operating temperatures, guidance is given in ISO 4427-1:2019, Annex A. 1) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.  This document covers a range of maximum allowable operating pressures and gives requirements concerning colours. NOTE 4 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and installation practices or codes.

ISO 4427-2:2019 Referenced Document

• ISO 1133-1 Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics — Part 1: Standard method*， 2022-06-23 Update
• ISO 11357-6 Plastics - Differential scanning calorimetry (DSC) - Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT)
• ISO 1167-1:2006 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 1: General method
• ISO 1167-2 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces
• ISO 2505 Thermoplastics pipes — Longitudinal reversion — Test method and parameters*， 2023-08-12 Update
• ISO 3126 Plastics piping systems - Plastics components - Determination of dimensions
• ISO 4427-1:2019 Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply — Part 1: General
• ISO 4427-5:2019 Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply — Part 5: Fitness for purpose of the system
• ISO 4433-1 Thermoplastics pipes - Resistance to liquid chemicals - Classification - Part 1: Immersion test method
• ISO 4433-2 Thermoplastics pipes - Resistance to liquid chemicals - Classification - Part 2: Polyolefin pipes
• ISO 6259-1 Thermoplastics pipes - Determination of tensile properties - Part 1: General test method
• ISO 6259-3 Thermoplastics pipes - Determination of tensile properties - Part 3: Polyolefin pipes

ISO 4427-2:2019 history

• 2023 ISO 4427-2:2019/Amd 1:2023 Plastics piping systems for water supply, and for drainage and sewerage under pressure — Polyethylene (PE) — Part 2: Pipes — Amendment 1
• 2019 ISO 4427-2:2019 Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply — Part 2: Pipes
• 2014 ISO 4427-2:2007/Amd 1:2014 Plastics piping systems - Polyethylene (PE) pipes and fittings for water supply - Part 2: Pipes; Amendment 1
• 2007 ISO 4427-2:2007 Plastics piping systems - Polyethylene (PE) pipes and fittings for water supply - Part 2: Pipes