prEN ISO 18489

Thermoplastic materials for piping systems - Determination of resistance to slow crack growth under cyclic loading - Cracked Round Bar (CRB) test method (ISO/DIS 18489:2025)

Publication date:   Oct 16, 2025

General information

40.60   Close of voting   Jan 7, 2026

CEN

CEN/TC 155 Plastics piping systems and ducting systems

European Norm

23.040.45   Plastics fittings

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Scope

This International Standard specifies a method to determine the resistance to slow crack growth
(SCG) of polyethylene materials, pipes, and fittings. The test is applicable to samples taken from
compression moulded sheet or extruded pipes and injection moulded fittings of suitable thickness.
This International Standard provides a method that is suitable for an accelerated fracture-mechanics
characterization at ambient temperatures of 23 °C of different polyethylene grades, especially for PE
80 and PE 100 types for pipe applications.

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prEN ISO 18489
40.60 Close of voting
Jan 7, 2026