48519030594051 113 INTERNATIONAL ISO STANDARD 2507-3 First edition 1995-02-15 Thermoplastics pipes and fittings Vicat softening temperature Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings Tubes et raccords en matieres thermoplastiques - Temperature de ramollissement Vicat Partie 3: Conditions particulieres d'essai pour tubes et raccords en acrylonitrile/butadiene/styrene (ABS) et en acrylonitrile/styrene/ester acrylique (ASA) OSI Reference number ISO 2507-3:1995(E) CoPYRIGHT International Organization for Standardization LicensedbyInfo O5T EObTS9 250h650 6 ISO2507-3:1995(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internationa! a vote. International Standard ISO 2507-3 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 specifi- cations. plastics pipes and fittings -Vicat softeningtemperature: Part 1: General test method Part 2: Test conditions for unplasticized polyivinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly(vinyl chloride) (PVC-HI) pipes Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings Annexes A and B of this part of ISO 2507 are for information only. @ISO1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. International OrganizationforStandardization CasePostale56-CH-1211Geneve20·Switzeriand Printed in Switzerland ii CoPYRIGHT, International Organization for Standardization LicensedbyInformationHandlingServices 4851903 0594053 T96 INTERNATIONAL STANDARD ISO ISO 2507-3:1995(E) Thermoplastics pipes and fittings Vicat softening temperature Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings 1 Scope 3 Principle This part of ISO 2507 specifies the particular test See clause 3 in ISO 2507-1:1995, applicable to the conditions for determining the Vicat softening tem- thermoplastics materials covered by this part of perature of acrylonitrile/butadiene/styrene (ABS) and ISO 2507. acrylonitrile/styrene/acrylic ester (ASA) pipes and fit- tings. 4 Apparatus It also gives, for information, the corresponding basic See clause 4 in 1SO 2507-1:1995: use the oven (4.7) specifications. instead of the heating bath (4.5). NOTE1 The general test method for determining the Vicat softening temperature of thermoplastics pipes and 5 Test pieces fittings is given in ISO 2507-1. See clause 5 in iSO 2507-1:1995 6 Conditioning 2 Normative reference 6.1 Preliminary drying of test pieces The following standard contains provisions which, throughreferenceinthistext,constituteprovisions Immediately before conditioning in accordance with ofthispartofisO2507.Atthetimeofpublication,the 6.2, predry the test pieces as follows: edition indicated was valid. All standards are subject to revision,and parties to agreements based on this - piace the test pieces for 2 h in the oven (see part of Is0 2507