prBAS ISO 18488:2027
Polyethylene (PE) materials for piping systems — Determination of strain hardening modulus in relation to slow crack growth — Test method
General information
Status:Project
Number of pages:14
Adoption method:Korice
Language:engleski
Edition:2.
Realization date:29.09.2026
Forseen date for next stage code:14.10.2026
Technical committee:BAS/TC 53, Fluids and fluids systems
ICS:
23.040.20, Plastics pipes
23.040.45, Plastics fittings
23.040.45, Plastics fittings
Abstract
This document specifies a method for the determination of the strain hardening modulus, which is used as a measure for the resistance to slow crack growth of polyethylene.
This document specifies how to obtain a strain hardening modulus measurement from “true stress vs. draw ratio” curves on compression moulded samples. Details of the necessary equipment, precision and sample preparation for the generation of data are given.
This document provides a method that is valid for all types of polyethylene, independent from the manufacturing technology, comonomer or catalyst type used for pipes and fittings applications.
Lifecycle
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Original document and degree of correspondence
ISO 18488:2025, identical
Relation to BAS standards
Work material
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