oSIST prEN ISO 2507:2025
(Main)Thermoplastics pipes and fittings - Vicat softening temperature: General test method and test conditions for Vinyl chloride - based (PVC-U, PVC-C, PVC-Hi) and Acryl nitrile - based (ABS, ASA) pipes and fittings (ISO/DIS 2507:2025)
Thermoplastics pipes and fittings - Vicat softening temperature: General test method and test conditions for Vinyl chloride - based (PVC-U, PVC-C, PVC-Hi) and Acryl nitrile - based (ABS, ASA) pipes and fittings (ISO/DIS 2507:2025)
The method specified is based on determining the temperature at which a standard indenter, under a force of 50 N ± 1 N, penetrates 1 mm into the surface of a test piece cut from the wall of a pipe or fitting while the temperature is raised at a constant rate. Is applicable only to thermoplastics materials for which it is possible to measure the temperature at which the rate of softening becomes rapid. Is based on ISO 306:1994 which, however, applies to materials in the form of sheets.
Rohre und Formstücke aus Thermoplasten - Vicat-Erweichungstemperatur: Allgemeines Prüfverfahren und Prüfbedingungen für Rohre und Formstücke auf Poly(vinylchlorid)- (PVC-U, PVC-C, PVC-Hi) und auf Acrylnitrilbasis (ABS, ASA) (ISO/DIS 2507:2025)
Tubes et raccords en matières thermoplastiques - Température de ramollissement Vicat: Méthode d'essai générale et conditions d’essai pour les tubes et raccords à base de chlorure de vinyle (PVC-U, PVC-C, PVC-Hi) et à base d'acryl nitrile (ABS, ASA) (ISO/DIS 2507:2025)
Plastomerne cevi in fitingi - Temperatura zmehčišča po Vicatu: Splošna preskusna metoda in preskusni pogoji za cevi in fitinge na osnovi vinilklorida (PVC-U, PVC-C, PVC-Hi) in akrilonitrila (ABS, ASA) (ISO/DIS 2507:2025)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2025
Plastomerne cevi in fitingi - Temperatura zmehčišča po Vicatu: Splošna preskusna
metoda in preskusni pogoji za cevi in fitinge na osnovi vinilklorida (PVC-U, PVC-C,
PVC-Hi) in akrilonitrila (ABS, ASA) (ISO/DIS 2507:2025)
Thermoplastics pipes and fittings - Vicat softening temperature: General test method and
test conditions for Vinyl chloride - based (PVC-U, PVC-C, PVC-Hi) and Acryl nitrile -
based (ABS, ASA) pipes and fittings (ISO/DIS 2507:2025)
Rohre und Formstücke aus Thermoplasten - Vicat-Erweichungstemperatur: Allgemeines
Prüfverfahren und Prüfbedingungen für Rohre und Formstücke auf Poly(vinylchlorid)-
(PVC-U, PVC-C, PVC-Hi) und auf Acrylnitrilbasis (ABS, ASA) (ISO/DIS 2507:2025)
Tubes et raccords en matières thermoplastiques - Température de ramollissement Vicat:
Méthode d'essai générale et conditions d’essai pour les tubes et raccords à base de
chlorure de vinyle (PVC-U, PVC-C, PVC-Hi) et à base d'acryl nitrile (ABS, ASA) (ISO/DIS
2507:2025)
Ta slovenski standard je istoveten z: prEN ISO 2507
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 2507
ISO/TC 138/SC 5
Thermoplastics pipes and fittings —
Secretariat: NEN
Vicat softening temperature:
Voting begins on:
General test method and test
2025-02-25
conditions for Vinyl chloride - based
Voting terminates on:
(PVC-U, PVC-C, PVC-Hi) and Acryl
2025-05-20
nitrile - based (ABS, ASA) pipes and
fittings
Tubes et raccords en matières thermoplastiques — Température
de ramollissement Vicat : Méthode d'essai générale et conditions
d’essai pour les tubes et raccords à base de chlorure de vinyle
(PVC-U, PVC-C, PVC-Hi) et à base d'acryl nitrile (ABS, ASA)
ICS: 23.040.20; 23.040.45
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This document is circulated as received from the committee secretariat.
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Reference number
ISO/DIS 2507:2025(en)
DRAFT
ISO/DIS 2507:2025(en)
International
Standard
ISO/DIS 2507
ISO/TC 138/SC 5
Thermoplastics pipes and fittings —
Secretariat: NEN
Vicat softening temperature:
Voting begins on:
General test method and test
conditions for Vinyl chloride - based
Voting terminates on:
(PVC-U, PVC-C, PVC-Hi) and Acryl
nitrile - based (ABS, ASA) pipes and
fittings
Tubes et raccords en matières thermoplastiques — Température
de ramollissement Vicat : Méthode d'essai générale et conditions
d’essai pour les tubes et raccords à base de chlorure de vinyle
(PVC-U, PVC-C, PVC-Hi) et à base d'acryl nitrile (ABS, ASA)
ICS: 23.040.20; 23.040.45
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
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NOTIFICATION OF ANY RELEVANT PATENT
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 2507:2025(en)
ii
ISO/DIS 2507:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions, . 1
4 Principle . 2
5 Apparatus . 2
5.1 Means of producing penetration .2
5.2 Indenter . . .2
5.3 Heating equipment .3
5.4 Weights .3
5.5 Temperature-measuring device .3
5.6 Penetration-measuring device .3
5.7 Micrometers and gauges .4
5.8 Oven with air circulation .4
6 Test specimens . 5
6.1 Specimen preparation from pipes .5
6.2 Specimen preparation from fittings .7
6.3 Number of test specimen .7
7 Conditioning . 7
7.1 General .7
7.2 Conditioning for specimens from acrylonitrile-based (ABS, ASA) pipes and fittings .7
8 Procedure . 7
9 Test Report . 8
Annex A (informative) Unplasticized poly(vinyl chloride) (PVC-U) pipes and fittings – Basic
specification . 9
Annex B (informative) Chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings – Basic
specification .10
Annex C (informative) High impact resistant poly (vinyl chloride) (PVC-HI) pipes – Basic
specification .11
Annex D (informative) Acrylonitrile/butadiene/styrene (ABS) pipes and fittings – Basic
specification .12
Annex E (informative) Acrylonitrile/styrene/ acrylic ester (ASA) pipes and fittings – Basic
specification .13
iii
ISO/DIS 2507:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic materials
and their accessories – Test methods and basic specifications.
ISO 2507:1995 consists of the following parts, under the general title Thermoplastics pipes and fittings – Vicat
softening temperature:
— Part 1: General test method
— Part 2: Test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride)
(PVC-C) pipes and fittings and for high impact resistant poly(vinyl chloride) (PVC-HI) pipes.
— Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/ acrylic ester
(ASA) pipes and fittings.
This third edition cancels and replaces all three parts of the first edition (ISO 2507-1:1
...
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