NBN EN ISO 2507:2026

Thermoplastics pipes and fittings - Vicat softening temperature - General test method and test conditions for vinyl chloride-based (PVC-U, PVC-C, PVC-HI) and acrylonitrile-based (ABS, ASA) pipes and fittings (ISO 2507:2026)

ACTIVE

About this standard

Languages
English and French
Type
NBN
Standards committee
CEN/TC 155 (Plastics piping systems and ducting systems)
Status
ACTIVE
Publication date
04 February 2026
Replaces
NBN EN ISO 2507-1:2017 NBN EN ISO 2507-2:2017 NBN EN ISO 2507-3:2017
ICS Code
23.040.20 (Plastics pipes)
23.040.45 (Plastics fittings)
Withdrawn Date
Price
€ 58,00

About this training

Summary

This document specifies a specific method for determining the Vicat softening temperature (VST) of thermoplastics pipes and fittings. It includes the adaption of method B 50 of ISO 306:2022 using a force of 50 N and a heating rate of 50 °C/ h and the procedure for specimen preparation.
It includes the particular test conditions for determining the Vicat softening temperature (VST) of unplasticized poly(vinylchloride) (PVC-U) or chlorinated poly(vinylchloride) (PVC-C) pipes and fittings, for high impact resistance poly(vinylchloride) (PVC-HI) pipes and for acrylonitrile/ butadiene/ styrene (ABS) and acrylonitrile/ styrene/ acrylic ester (ASA) pipes and fittings.
This document can also be used for pipes and fittings from other materials (e.g. PE-UHMW).