1、 Reference numberISO 27769-1:2009(E)ISO 2009INTERNATIONAL STANDARD ISO27769-1First edition2009-08-01Wood-based panels Wet-process fibreboard Part 1: Classifications Panneaux base de bois Panneau de fibres obtenu par procd humide Partie 1: Classifications ISO 27769-1:2009(E) PDF disclaimer This PDF f
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5、O 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the
6、 country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedISO 27769-1:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv
7、 1 Scope . 1 2 Normative references . 1 3 Terms, definitions, symbols and abbreviated terms. 2 3.1 Terms and definitions. 2 3.2 Symbols and abbreviated terms . 2 4 Classifications, designation and coding 3 4.1 General. 3 4.2 Softboards . 3 4.3 Hardboards 4 5 Mandatory tests relating to each grade 4
8、5.1 General. 4 5.2 Softboards . 4 5.3 Hardboards 5 5.4 Supplementary properties . 5 6 Thickness ranges 6 6.1 Specification values . 6 6.2 Softboards . 6 6.3 Hardboards 6 Bibliography . 7 ISO 27769-1:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardizati
9、on) 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 re
10、presented 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. International Standards
11、are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internati
12、onal Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 27769-1 was
13、 prepared by Technical Committee ISO/TC 89, Wood-based panels, Subcommittee SC 1, Fibre boards. ISO 27769 consists of the following parts, under the general title Wood-based panels Wet-process fibreboard: Part 1: Classifications Part 2: Requirements INTERNATIONAL STANDARD ISO 27769-1:2009(E) ISO 200
14、9 All rights reserved 1Wood-based panels Wet-process fibreboard Part 1: Classifications 1 Scope This part of ISO 27769 provides a classification matrix and related mandatory tests for two types of wet-process fibreboard: softboards and hardboards. NOTE 1 Wet-process fibreboards are divided into thre
15、e types: softboards, medium boards and hardboards. NOTE 2 This part of ISO 27769 is not applicable to medium boards. NOTE 3 Fibreboards are broadly divided into two groups based on the manufacturing process, namely the dry-process group and the wet-process group. This part of ISO 27769 is not applic
16、able to dry-process fibreboards (see ISO 16895-1 and ISO 16895-2). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docu
17、ment (including any amendments) applies. ISO 3340, Fibre building boards Determination of sand content ISO 9426, Wood-based panels Determination of dimensions of panels ISO 9427, Wood-based panels Determination of density ISO 16978, Wood-based panels Determination of modulus of elasticity in bending
18、 and of bending strength ISO 16979, Wood-based panels Determination of moisture content ISO 16981, Wood-based panels Determination of surface soundness ISO 16983, Wood-based panels Determination of swelling in thickness after immersion in water ISO 16984, Wood-based panels Determination of tensile s
19、trength perpendicular to the plane of the panel ISO 16985, Wood-based panels Determination of dimensional changes associated with changes in relative humidity ISO 16998, Wood-based panels Determination of moisture resistance Boil test ISO 17064, Wood-based panels Fibreboard, particleboard and orient
20、ed strand board (OSB) Vocabulary ISO 27769-1:2009(E) 2 ISO 2009 All rights reservedISO 20585, Wood-based panels Determination of wet bending strength after immersion in water at 70 C or 100 C (boiling temperature) 3 Terms, definitions, symbols and abbreviated terms For the purposes of this document,
21、 the terms and definitions given in ISO 17064 and the following terms, definitions, symbols and abbreviated terms apply. 3.1 Terms and definitions 3.1.1 wet-process fibreboard fibreboard with a forming line moisture content of greater than 20 %, and whose primary bonding results from the felting of
22、the fibres and their inherent adhesive properties NOTE 1 According to the density, the types of fibreboard are: a) softboards, of density 36 mm. 6.3 Hardboards For hardboards, the specification of a particular thickness, , of product shall be determined by consulting the correct thickness range as f
23、ollows: a) u 3,5 mm; b) 3,5 mm 5,5 mm. ISO 27769-1:2009(E) ISO 2009 All rights reserved 7Bibliography 1 ISO 16572, Timber structures Wood-based panels Test methods for structural properties 2 ISO 16895-1, Wood-based panels Dry-process fibreboard Part 1: Classifications 3 ISO 16895-2, Wood-based panels Dry-process fibreboard Part 2: Requirements ISO 27769-1:2009(E) ICS 79.060.20 Price based on 7 pages ISO 2009 All rights reserved
