ISO INTERNATIONAL STANDARD 8361-3 First edition 1991-09-01 Thermoplastics pipes and fittings -- Water absorption Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) pipes and fittings Tubes et raccords en matieres thermoplastiques --- Absorption d'eau Partie 3: Conditions particulieres d'essai pour tubes et raccords en acrylonitrilelbutadiene/styrene (ABS) Reference number ISO 8361-3:1991(E) Not for Resale ISO 8361-3:1991(E) 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, govern- mental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with. the Internationat Electrotechnical Commission(lEC)on allmatters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- bodies casting a vote. International Standard IsO 8361-3 was prepared by Technical Committee IsO/TC 138, Plastics pipes, fittings and valves for the transport of fluids. Iso 8361 consists of the following parts, under the general title Thermoplastics pipes and fittings -- Water absorption: Part 1: General test method (PvC-U) pipes and fittings Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) pipes and fittings NOTE E -- Pipes and fittings made of other materials, i.e. chlorinated poyly(vinyl chloride) (PVC-C), high-impact poly(vinyl chloride) (PVC-Hl), and acryionitrile/styrene/acrylate (AsA), witl be dealt with later in addi- tiona! parts. Annex A of this part of isO 8361 is for information only. @ ISO1991 or by any means, electronic or mechanical, Inciuding photocopying and microfilm, without permlssion in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed In Switzerland 11 censefrom IHS Not for Resale ISO 8361-3:1991(E) INTERNATIONAL STANDARD Thermoplastics pipes and fittings -- Water absorption - Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) pipes and fittings acrylonitrile/butadiene/styrene (ABS) General Scope specification for moulding and extrusion materials. This part of Iso 8361 specifies the test conditions for Iso 8361-1:1991, Thermoplastics pipes and fittings - determining the water absorption of acrylonitrie/ Water absorption -- Part 1: General test method. butadiene/styrene (ABS) pipes and fittings, what- ever their applications and use, which contain only the necessary antioxidants and stabilizers together 3Principle with any necessary pigments. Test pieces are first conditioned and their mass and NOTE 1 The general test method for the determination total surface area determined. of the water absorption of thermoplastics pipes and fit- tings is given in 1sO 8361-1. The conditioned test pieces are then immersed for 24 h in distilled water 90 °C. This part of isO 8361 also gives, for information The mass of each test piece is determined again, purposes, the preferred maximum value of the water and the change in mass per unit area calculated. absorption. The water absorption values appropriate for the in- Requirements on materials tended applications of particular ABs pipes and fit- tings are specified in the relevant product standards. Materials for ABs pipes and fittings shall satisfy the requirements of iso 7245. 2 Normative references Procedure 5 The following standards contain provisions which, 5.1 Measure the dimensions of the test pieces in through reference in this text, constitute provisions accordance with 7.1 of IsO 8361-1:1991. of this part of IsO 8361. At the time of publication, the ed