485190300962791 150.980890 INTERNATIONAL ISO STANDARD 9808 First edition 1990-09-15 Solar water heaters - Elastomeric materials for absorbers, connecting pipes and fittings Method of assessment Chauffe-eau solaires -- Materiaux en élastomeres pour absorbeurs, raccords et tuyaux - Methode d'évaluation Referencenumber ISO 9808:1990(E) CopYRIGHT International Organization for Standardization Licensed by Information Handling Services 150 9808 90 4851903 0096280 8 ISO 9808:1990(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 International Electrotechnical Commission (lEC) 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 Interna- tional Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard Iso 9808 was prepared by Technical Committee ISO/Tc 180, Solar energy. ?ISO1990 or by any means, electronlc or mechanical, Including photocopying and microfilm, without permissloninwritingfromthepubllsher. International Organization for Standardization CasePostale56.CH-1211Geneve 20:Switzerland Printed in Switzerland COPYRIGHT International OrganizationforStandardization Licensed by Information Handling Services 150 9808 90 4851903 0096281T INTERNATIONAL STANDARD ISO 9808:1990(E) Solar water heaters -- Elastomeric materials for absorbers, connecting pipes and fittings -- Method of assessment Scope Iso 1431-1:1989, Rubber, vulcanized or thermoplas- tic -Resistance to ozone cracking -- Part 1: Static This International Standard specifies a means of strain test. assessing elastomeric materials for use in the manufacture of absorbers, connecting piping and IsO1653:1975,Vulcanizedrubbers--Determination fittings for use in solar water heaters. of compression set under constant deflection at low temperatures. Iso 1817:1985, Rubber, vulcanized - Determination of the effect of liquids. 2 Normative references Iso 4661-1:1986,Rubber, vulcanized -.- Preparation of samples and test pieces -- Part 1: Physical tests. The folliowing standards contain provisions which, through reference in this text, constitute provisions is0 7326:1984, Rubber and plastics hoses -Assess- of this International Standard. At the time of publi- ment of ozone resistance under static conditions. cation, the editions indicated were valid. All stan- dards are subject to revision, and parties. to 3 Test pieces agreements based on this Internationai Standard are encouraged to investigate the possibility of ap- The test pieces shall be as specified in the relevant plying the most recent editions of the standards in- dicated below. Members of IEC and isO maintain test method. registers of currently valid International Standards. The test pieces required for the tests specified in 4.3 and 4.7 should preferabiy be cut from samples of the iso 34-1:---1, Rubber, vulcanized--Determination of finishedproduct.Wherethisisnotpracticabletest tear strength -- Part 1: Trouser, angle and crescent pieces may be cut from sheet material. test pieces. If it is required to separate a section of fluid passage Iso 37:1977, Rubber, vulcanized - Determination of from a finished absorber, the test piece shall be tensilestress-strainproperties. prepared in accordance with Iso 4661-1. 1so 48:1979,Vulcanized rubbers --Determination of hardness (Hardness between 30 and 85 IRHD). Qualification fests Iso 188:1982, Rubber, vulcanized Accelerated 4.1 Hardn