ISO 27567:2009
(Main)Laminated veneer lumber — Measurement of dimensions and shape — Method of test
Laminated veneer lumber — Measurement of dimensions and shape — Method of test
ISO 27567:2009 describes the methods for determining the thickness, length, width, spring, bow, twist and section squareness and cupping of test pieces of structural laminated veneer lumber (LVL), as specified in ISO 18776.
Lamibois — Mesurage des dimensions et forme — Méthode d'essai
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 27567
First edition
2009-05-01
Laminated veneer lumber —
Measurement of dimensions and
shape — Method of test
Lamibois — Mesurage des dimensions et forme — Méthode d'essai
Reference number
ISO 27567:2009(E)
©
ISO 2009
---------------------- Page: 1 ----------------------
ISO 27567:2009(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
© ISO 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
ISO's 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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2009 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 27567:2009(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.
International Standards 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
International 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 27567 was prepared by Technical Committee ISO/TC 89, Wood-based panels, Subcommittee SC 3,
Plywood.
© ISO 2009 – All rights reserved iii
---------------------- Page: 3 ----------------------
INTERNATIONAL STANDARD ISO 27567:2009(E)
Laminated veneer lumber — Measurement of dimensions and
shape — Method of test
1 Scope
This International Standard describes the methods for determining the thickness, length, width, spring, bow,
twist and section squareness and cupping of test pieces of structural laminated veneer lumber (LVL), as
specified in ISO 18776.
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
document (including any amendments) applies.
ISO 2074, Plywood — Vocabulary
ISO 18776, Laminated veneer lumber (LVL) — Specifications
ISO 16979, Wood-based panels — Determination of moisture content
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2074 apply.
4 Moisture content
To meet the requirements of this International Standard, the test pieces shall have a moisture content of
(10 ± 4) % as determined in accordance with ISO 16979.
5 Apparatus
5.1 Determination of thickness.
5.1.1 Suitable linear measuring instrument, i.e. a screw micrometer.
5.1.2 Vernier calipers or dial gauge, having flat and parallel measuring surfaces with a contact area of
2 2
between 30 mm and 300 mm , reading to an accuracy of 0,1 mm.
5.2 Determination of length and width.
5.2.1 Suitable linear measuring instrument, reading to an accuracy of 0,5 mm.
© ISO 2009 – All rights reserved 1
---------------------- Page: 4 ----------------------
ISO 27567:2009(E)
5.3 Determination of spring.
5.3.1 Thumbtacks or drawing pins, at least two, or staple gun and staples.
5.3.2 Blocks, two, with flat surfaces, for which the difference in thickness does not exceed 0,1 mm.
NOTE Blocks of 30 mm × 15 mm × 20 mm have been found to be suitable.
5.3.3 Wire or cord, strong and thin.
5.3.4 Suitable linear measuring instrument, reading to an accuracy of 0,5 mm.
5.4 Determination of bow.
5.4.1 Surface, nominally flat, near horizontal, larger than the piece by at least 25 mm in each direction.
5.4.2 Suitable linear measuring instrument, reading to an accuracy of 0,5 mm.
5.4.3 Masses, totalling (85 ± 5) kg.
5.5 Determination of twist.
5.5.1 Surface, nominally flat, near horizontal, larger than the piece by at least 25 mm in each direction.
5.5.2 Suitable linear measuring instrument, reading to an accuracy of 0,5 mm.
5.6 Determination of squareness of section.
5.6.1 Square, with legs at least 25 mm longer than the width of the test piece to
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.