ISO INTERNATIONAL STANDARD 12736-1 First edition 2023-10 Oil and gas industries including lower carbon energy - Wet thermal insulation systems for pipelines and subsea equipment - Part 1: Validation of materials and insulation systems Industries du pétrole et du gaz, y compris les énergies a faible teneur en carbone - Systemes d'isolation thermique en milieu humide pour conduites et équipements sous-marins - Partie 1: Validation des matéeriaux et des systemes d'isolation Reference number IS0 12736-1:2023(E) ISO @IS02023 IS0 12736-1:2023(E) COPYRIGHT PROTECTED DOCUMENT IS02023 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may the internet or an intranet, withoutpriorwrittenpermission.Permission can be requested from eitherIso at the addressbelow or Iso's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org PublishedinSwitzerland i @ IS0 2023 - All rights reserved IS0 12736-1:2023(E) Contents Page Foreword .iv 1 Scope. 1 2 Normative references 1 3 Terms and definitions. .2 4 Symbols and abbreviated terms. 7 4.1 Symbols. 7 4.2 Abbreviated terms .8 5 Conformance .9 5.1 Rounding 9 5.2 Conformity to requirement .9 6 Material classes 9 7 Materials and system validation testing 9 7.1 General 9 7.2 Material validation testing 10 7.2.1 General 10 7.2.2 Small-scale exposure testing for materials 11 7.3 System validation testing. 14 7.3.1 General 14 7.3.2 System test requirements 14 7.3.3 Full scale test program for systems 15 7.3.4 Small-scale full-system exposure test 17 7.4 System repairs 17 7.5 Validation of long-term performance. 18 7.6 Technical validation dossier. 18 7.6.1 General 18 7.6.2 Content of the validation dossier 19 7.7 Anti-corrosion coating documentation 20 Annex A (informative) Guidelines for using this document .21 Annex B (normative) Thermal conductivity testing ..26 Annex C (normative) Hydrostatic compressive behaviour/Tri-axial test procedures. ..38 Annex D (normative) Simulated bend test ..45 Annex E (normative) System shear resistance test .48 AnnexF(normative)Impacttest .50 Annex G (normative) Simulated service test for pipelines. .53 Annex H (normative) Simulated service test for subsea equipment .55 Annex I (normative) Small-scale full-system exposure test .58 Bibliography 60 @ IS0 2023 - All rights reserved ii IS0 12736-1:2023(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, 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 document 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) IsO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). IsO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, Iso had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which