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prEN ISO 7685

Glass-reinforced thermosetting plastics (GRP) pipes - Determination of initial ring stiffness (ISO 7685:2026) prEN ISO 7685

General information

40.10   harmonizedStageCodeLabel.40.10   Aug 20, 2026

CEN

CEN/TC 155 Plastics piping systems and ducting systems

European Norm

23.040.20   Plastics pipes

Scope

This document specifies methods for determining the initial ring stiffness of glass-reinforced thermosetting plastics (GRP) pipes. Two methods are given (constant load and constant deflection), and within the specified deflection limits, each is equally valid and can be used for any diameter.

Life cycle

PREVIOUSLY

PUBLISHED
EN 1228:1996

NOW

IN_DEVELOPMENT
prEN ISO 7685
40.10 harmonizedStageCodeLabel.40.10
Aug 20, 2026

Relations

Adopted from ISO 7685:2026 IDENTICAL




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