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BSI BS ISO 4437-5:2014

Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE) -- Fitness for purpose of the system
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BSI BS ISO 4437-5:2014

Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE) -- Fitness for purpose of the system

PUBLISH DATE 2014
PAGES 22
BSI BS ISO 4437-5:2014

This part of ISO 4437 specifies the requirements of fitness for purpose of the polyethylene (PE) piping system to be used for the supply of gaseous fuels.

It specifies the definitions of electrofusion, socket fusion, butt fusion, and mechanical joints.

It specifies the method of preparation of test piece joints and the tests to be carried out on these joints for assessing the fitness for purpose of the system under normal and extreme conditions.

It specifies the test parameters for the test methods referred to in this part of ISO 4437.

In conjunction with ISO 4437-1, ISO 4437-2, ISO 4437-3, and ISO 4437-4, it is applicable to PE pipes, fittings, valves, their joints, and joints with components of PE and other materials intended to be used under the following conditions:

  1. the maximum operating pressure (MOP) is based on the design stress, determined from the compound minimum required strength (MRS) divided by the C factor, and taking into account rapid crack propagation (RCP) requirements;

  2. a temperature of 20 °C as reference temperature for the design basis.

NOTE 1 For other operating temperatures, derating coefficients are given in Annex A.

NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.

SDO BSI: British Standards Institution
Document Number ISO 4437-5
Publication Date Jan. 31, 2014
Language en - English
Page Count 22
Revision Level
Supercedes
Committee PRI/88
Publish Date Document Id Type View
Feb. 21, 2024 BS ISO 4437-5:2024 Revision
Jan. 31, 2014 BS ISO 4437-5:2014 Revision