1、 ISO 2016 Broadleaved sawn timber Nominal sizes Sciages de bois feuillus Dimensions nominales INTERNATIONAL STANDARD ISO 8903 Second edition 2016-02-15 Reference number ISO 8903:2016(E) ISO 8903:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland Al
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3、rom either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 8903:2016(E)Foreword iv 1 Scope . 1 2 Normative re
4、ferences 1 3 T erms and definitions . 1 4 Nominal sizes . 1 ISO 2016 All rights reserved iii Contents Page ISO 8903:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internationa
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7、1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives Attention is drawn to the possibility that some of the elements
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9、ww.iso.org/patents Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to t
10、he WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 218, Timber. This second edition cancels and replaces the first edition (ISO 8903:1994), which has been technically revised.iv
11、ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 8903:2016(E) Broadleaved sawn timber Nominal sizes 1 Scope This International Standard specifies nominal sizes of unplanned, square-edged and unedged, sawn timber. 2 Normative references The following documents, in whole or in part, are normat
12、ively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4470, Sawn timber Determination of the average moisture con
13、tent of a lot ISO 8904, Broadleaved sawn timber Sizes Methods of measurement ISO 24294, Timber Round and sawn timber Vocabulary 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 24294 apply. 4 Nominal sizes Measure the dimensions in accordance with
14、ISO 8904. The nominal length of sawn timber shall be from 1 m to 6 m, with size intervals of 0,1 m or 0,25 m. The nominal thickness and width of sawn timber shall be in accordance with the values specified in Table 1. Table 1 Nominal thickness and width of sawn timber Thickness a , mm Width, mm 19 (
15、16) 60, with size intervals of 10 22 60, with size intervals of 10 27 (25) 60, with size intervals of 10 32 (35) 60, with size intervals of 10 40 (38) 60, with size intervals of 10 45 (44) 80, with size intervals of 10 50 (55) 80, with size intervals of 10 60 (65) 80, with size intervals of 10 70 (7
16、5) 80, with size intervals of 10 80 100, with size intervals of 10 90 100, with size intervals of 10 100 100, with size intervals of 10 aThe values given in parentheses are non-preferred. ISO 2016 All rights reserved 1 ISO 8903:2016(E) For unedged sawn timber, the width of the narrower of the two fa
17、ces, at any point along the length, shall be not less than 40 mm. The nominal sizes specified are applicable for sawn timber having an average moisture content of 20 % (m/m), as determined in accordance with ISO 4470.2 ISO 2016 All rights reserved ISO 8903:2016(E) ISO 2016 All rights reserved IC S 79.040 Price based on 2 pages
