T.1S0 7511-EN6L 1999 4851903 0779337 054 ISO INTERNATIONAL STANDARD 7511 First edition 1999-03-15 Plastics piping systems -- Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods to prove the leaktightness of the wall under short-term internal pressure Systemes de canalisations en plastiques - Tubes et raccords en plastiques thermodurcissables renforcés de verre (PRV) -Methode d'essaipourétablir 'etancheite de la paroi sous une pression interne acourtterme This material is reproduced from Iso documents under International Organization for part of these Iso documents may be reproduced in any form, electronic retrieval system or otherwise,except as allowed in the copyright law of the country of use, or with the prior written consent of is0 (Case postale 56, 1211 Geneva 20, Switzerland, Fax +412273410 79),tHS or the IS0 Licensor's members. ISO Reference number ISO7511:1999(E) STD.1S07511-ENGL199948519030779338T90 ISO 7511:1999(E) Contents Page 1 Scope 2 Term and definition 3 Method A. 3.1 Principle.... 3.2 Apparatus 3.3 Test pieces 3.4 Procedure .... 3.5 Test report.. 4 Method B.. 4.1 Principle... .3 4.2 Apparatus 4.3 Test pieces 4.4 Procedure .. 4.5 Test report @ISO1999 InternationalOrganizationforStandardization Case postale 56 : CH-1211 Geneve 20 . Switzerland Intemetiso@iso.ch Printed in Switzerland i STD.IS0.7511-ENGL 1999 4851903 0779339 927 @ISO ISO 7511:1999(E) Foreword liaison with Iso, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. collaborationwithCEN/TC155,PlasticspipingSystemsandductingsystems.