ISO 1954-2013 Plywood - Tolerances on dimensions《胶合板 尺寸规格和公差》.pdf

1、 ISO 2013 Plywood Tolerances on dimensions Contreplaqu Tolrances sur dimensions INTERNATIONAL STANDARD ISO 1954 Second edition 2013-11-01 Reference number ISO 1954:2013(E) ISO 1954:2013(E)ii ISO 2013 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise spec

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3、SOs member body in the 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 ISO 1954:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv 1 Scope .

4、1 2 Normative references 1 3 Moisture content of panels 1 4 Tolerances . 1 4.1 General . 1 4.2 Tolerances on length and width . 1 4.3 Tolerances on thickness 1 4.4 Tolerance on straightness of edges . 2 4.5 Tolerance on squareness 2 ISO 1954:2013(E) Foreword ISO (the International Organization for S

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11、t is ISO/TC 89, Wood-based panels , Subcommittee SC 3, Plywood. This second edition cancels and replaces the first edition (ISO 1954:1999), Clauses 3, 4, and 5 of which have been technically revised.iv ISO 2013 All rights reserved INTERNATIONAL ST ANDARD ISO 1954:2013(E) Plywood Tolerances on dimens

12、ions 1 Scope This International Standard specifies dimensional tolerances of plywood panels (length, width, thickness) and tolerances for edge straightness and squareness. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispe

13、nsable 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 9426, Wood-based panels Determination of dimensions of panels ISO 16979, Wood-based panels Determination of

14、moisture content 3 Moisture content of panels Moisture content shall be measured in accordance with ISO 16979. Unless otherwise stated by contract, dimensional tolerances are applicable at a reference moisture content of (10 2) %. Statistically valid factors may be used to adjust measurements that c

15、an be taken, for practical purposes, at different moisture content (e.g. as-manufactured state or as-received state). 4 Tolerances 4.1 General Unless otherwise specified in other applicable standards, specifications, and/or contract terms, the tolerances given in 4.2 to 4.5 shall apply. NOTE Some pl

16、ywood products and uses can require narrower tolerances. 4.2 Tolerances on length and width Length and width shall be measured in accordance with ISO 9426. Tolerances on nominal size: 1,5 mm/m with a maximum of 3,5 mm. 4.3 Tolerances on thickness Thickness shall be measured in accordance with ISO 94

17、26. Tolerances on nominal thickness are specified in Table 1. ISO 2013 All rights reserved 1 ISO 1954:2013(E) Table 1 Tolerances on nominal thickness Dimensions in millimetres Nominal thickness t Unsanded, touch-sanded, or scraped panels Sanded panels Thickness tolerance within one panel Tolerance o

18、n nominal thickness Thickness tolerance within one panel Tolerance on nominal thickness t 3 0,5 +0,4 0,2 0,3 0,2 3 25 1,5 +(0,8 + 0,03 t) (0,4 + 0,03 t) 0,8 +(0,2 + 0,03 t) (0,3 + 0,03 t) 4.4 Tolerance on straightness of edges Straightness of panel edges shall be measured in accordance with ISO 9426. Tolerance: 1 mm/m. 4.5 Tolerance on squareness Squareness shall be measured in accordance with ISO 9426. Tolerance: 1 mm/m.2 ISO 2013 All rights reserved ISO 1954:2013(E) ISO 2013 All rights reserved IC S 79.060.10 Price based on 2 pages