ISO INTERNATIONAL STANDARD 12578 Second edition 2016-05-01 Timber structures Glued laminated timber - Component performance reguirements Structures en bois -Bois lamellé-collé-Performance des composants et exigences Reference number ISO 12578:2016(E) ISO International Organization for Standardization =ZHEJIANG INST OF STANDARDIZATION C15956617 @IS02016 vided by IHS under itted without license from IHS IS0 12578:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS02016,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinair PrganizationforStandardization ensee-ZHEJIANG INST.OF STANDARDIzARoISQ16- All rights reserved Not for Resale, 2016/7/20 03:23:55 etworking permitted without license from IHS IS0 12578:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Symbols. ..3 5 Component requirements. .4 5.1 General. .4 5.2 Timber. ..4 5.3 Adhesives .4 5.4 End joints in laminations ..4 5.4.1 Qualification requirements .4 5.4.2 Verification of on-going production 5.5 Glue line integrity and strength 4 6 Manufacturing requirements .6 6.1 General ..6 6.2 Adhesives 6 6.3 Timber. .6 7 Qualification .6 8 Factory production internal quality control. .6 8.1 General. . 6 8.2 Endjoints ..6 8.3 Glue line integrity .7 8.4 Gluing record .7 9 Quality system .7 Annex A (informative) Personnel, facilities, manufacture and quality control ..8 Annex B (informative) Formaldehyde emission .13 Bibliography ..14 iii e=ZHEJIANG INSTOFSTANDARDIZATION C15956617 vided by IHS under lic vithoutlicense from IHS Not for Resale, 2016/7/20 03:23:55