1、 ISO 2014 Plywood Decorative veneered plywood Contreplaqu Contreplaqu placage dcoratif INTERNATIONAL STANDARD ISO 13608 First edition 2014-02-15 Reference number ISO 13608:2014(E) ISO 13608:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless other
2、wise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address b
3、elow or ISOs 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 13608:2014(E) ISO 2014 All rights reserved iii Contents Page Foreword iv
4、1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Classifications 2 4.1 Classification according to the decorative veneer 2 4.2 Classification according to the face . 2 4.3 Classification according to exposure classes 2 5 Requirements and test methods 2 5.1 Panel dimensions and tol
5、erances . 2 5.2 Surface appearance requirements and determination of quality grade . 3 5.3 Physical and chemical requirements, sampling, and test methods . 3 5.4 Conformance . 6 6 Mar king , identification, and documentation 6 Annex A (normative) Immersion and delamination test 7 Annex B (normative)
6、 High-low temperature cycle test . 9 Annex C (informative) Classification b y surfac e appear anc e .11 ISO 13608:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
7、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, al
8、so take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1.
9、 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 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elem
10、ents of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations receive
11、d (see www.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 adhe
12、rence to the 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 89, Wood based panels, Subcommittee SC 3, Plywood.iv ISO 2014 All rights reserved INTERNATIONAL ST ANDARD ISO 13608:2
13、014(E) Plywood Decorative veneered plywood 1 Scope This International Standard specifies the terms, classifications, requirements, test methods, marking, for decorative veneered plywood with natural wood veneer, coloured veneer, laminated veneer, multilaminar veneer, and other types of veneer as dec
14、orative surface and plywood as a core panel, where the surface veneer thickness is less than 0,55 mm. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cit
15、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1954, Plywood Tolerances on dimensions ISO 2074:2007, Plywood Vocabulary ISO 2426-1, Plywood Classification by surface appearance Part 1: General ISO 2426-2, Plywood Classificati
16、on by surface appearance Part 2: Hardwood ISO 2426-3, Plywood Classification by surface appearance Part 3: Softwood ISO 9426, Wood-based panels Determination of dimensions of panels ISO 12460-1, Wood-based panels Determination of formaldehyde release Part 1: Formaldehyde emission by the 1-cubic-metr
17、e chamber method ISO 12460-3, Wood-based panels Determination of formaldehyde release Part 3: Gas analysis method ISO 12460-4, Wood-based panels Determination of formaldehyde release Part 4: Desiccator method ISO 12465, Plywood Specifications ISO 12466-1, Plywood Bonding quality Part 1: Test methods
18、 ISO 12466-2, Plywood Bonding quality Part 2: Requirements ISO 16979, Wood-based panels Determination of moisture content ISO 18775, Veneers Terms and definitions, determination of physical characteristics and tolerances ISO/IEC 17065, Conformity assessment requirements for bodies certifying product
19、s, processes and services 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 2074, ISO 12465, ISO 18775, and the following apply. 3.1 decorative veneered plywood plywood with natural wood veneer, coloured veneer, laminated veneer, multilaminar veneer
20、, and any other types of veneer as decorative surface and plywood as a core panel, where the surface veneer thickness is less than 0,55 mm ISO 2014 All rights reserved 1 ISO 13608:2014(E) 3.2 coloured veneer wood veneer produced from either bleaching or dying procedure 3.3 laminated wood veneer vene
21、er sliced from wood flitch that is assembled from small pieces of wood strips with joints parallel to grain 3.4 colour difference difference between surface colour of the decorative veneer and the control colour of the sample veneer colour or uneven colour of the surface in some case Note 1 to entry
22、: It does not include the colour difference between early wood and later wood, as well as the natural grain colour difference on the wood surface itself. 4 Classific ations 4.1 Classification ac c or ding t o the dec or ati v e v eneer a) natural wood veneered plywood; b) coloured veneered plywood;
23、c) laminated wood veneered plywood; d) multilaminar decorative veneered plywood. 4.2 Classification ac c or ding t o the fac e a) single-faced decorative veneered plywood; b) double-faced decorative veneered plywood. 4.3 Classification ac c or ding t o e xposur e classes a) Exposure Class 1: for use
24、 in dry conditions; b) Exposure Class 2: for use in tropical-dry/humid conditions. 5 Requirements and test methods 5.1 Panel dimensions and tolerances 5.1.1 General Test methods and requirements as given in ISO 1954 and ISO 9426 apply to determine length, width, squareness, and edge straightness of
25、the panel. 5.1.2 Panel thickness and tolerances Tolerance of thickness of decorative veneered plywood refers to the nominal thickness marked on the product label and shall satisfy the requirements given in Table 1. Tolerance of thickness within one panel shall satisfy the requirements given in Table
26、 1.2 ISO 2014 All rights reserved ISO 13608:2014(E) T a b l e 1 T h i c k n e s s t o l e r a n c e f o r d e c o r a t i v e v e n e e r e d p l y w o o d Dimension in millimetres Thickness, t Thickness tolerance within one panel Tolerance on nominal thickness t 4 0,3 0,20 4 t 7 0,5 0,30 7 t 20 0,6
27、 0,40 t 20 0,6 0,50 5.2 Surface appearance requirements and determination of quality grade 5.2.1 Determination of surface appearance 5.2.1.1 Apparatus Scale magnifier glass; Photoelectric integrating colour measurement instrument; Steel rule, to an accuracy of 0,5 mm. 5.2.1.2 Test method Inspect vis
28、ually the surface appearance for each panel tested; Classify the decorative veneered plywood in accordance with criteria given in Annex C. 5.2.2 Quality grades Decorative veneered plywood shall be classified by the surface appearance. The list of characteristics which shall be taken into account is
29、given in ISO 2426-1. NOTE 1 An example of classification according to appearance classes is given in ISO 2426-2 and ISO 2426-3. The classes of the surface are chosen from classes E, I, or II. (See Annex C.) NOTE 2 The quality grades of the face and back surface appearance are usually defined by cont
30、ract. Colour difference allowance shall follow the agreement or contract. Photoelectric integrating colour measurement instrument or photo electricity integral colourimeter shall be employed for arbitration, and a) indiscernible refers to the total colour difference lower than 1,5, b) inconspicuous
31、refers to the total colour difference between 1,5 approximately 3,0, and c) obvious refers to the total colour difference higher than 3,0. 5.3 Physical and chemical requirements, sampling, and test methods 5.3.1 Requirements Unless otherwise specified, requirements and test methods given in Table 2
32、shall be fulfilled. Determination of the formaldehyde release shall be carried out in accordance with ISO 12460-1 as the reference method and ISO 12460-3 or ISO 12460-4 for factory production control. ISO 2014 All rights reserved 3 ISO 13608:2014(E) T a b l e 2 S p e c i f i c a t i o n s Characteri
33、stics Test method Requirements Moisture content (%) ISO 16979 6,0 14,0 Immersion and delamination test Annex A Length of failure or delamination between surface veneer and plywood shall be less than 25 mm on each side. High-low temperature cycle test Annex B No crack, blister, crinkle, on surface Fo
34、rmaldehyde release a ISO 12460-1 0,124 mg/m 3 NOTE If there is specific national or local law setting a lower limit of formaldehyde release, it applies. aIf factory production control methods are employed to determine formaldehyde release, a correlation between the utilized method and the 1-cubic-me
35、ter chamber method as in ISO 12460-1 shall be established. When the faced decorative veneered plywood is manufactured in a two-stage process, the substrate plywood shall meet the requirements of ISO 12465. 5.3.2 Sampling and preparation of test pieces Preparation of test pieces for properties determ
36、ination is given in Figure 1 and Figure 2. Three samples shall be cut from one panel to be tested as shown in Figure 1. Then test pieces for moisture content test, immersion and delamination test, high-low temperature cycle test, and formaldehyde release determination are cut as shown in Figure 2. A
37、ll the test pieces shall be coded in sequence. Key 1, 2, and 3 samples 4 length of panel 5 half-length of panel 6 width of panel Figure 1 Example of cutting plan for test sample preparation4 ISO 2014 All rights reserved ISO 13608:2014(E) Key 1, 2, 3, and 4 samples as given in Table 3 5 length of pan
38、el 6 width of panel Figure 2 Example of cutting plan for test pieces preparation When cutting test pieces, it is possible to change the cutting position to avoid any defect that could affect the accuracy of test results. The surface of the test pieces shall be kept clean. The dimension and number of
39、 test pieces shall follow the requirements in Table 3 with marking. ISO 2014 All rights reserved 5 ISO 13608:2014(E) T a b l e 3 D i m e n s i o n a n d n u m b e r o f t e s t p i e c e s Property Dimension (length width) mm Nu m b e r Marking of samples Note Moisture content 100 100 or at least 20
40、 g 3 Immersion delamination 75 75 6 High-low temperature cycle 150 150 3 Formaldehyde release 1-Cubic-metre chamber method 500 500 2 Two test pieces could be taken from any position from test sample as shown in Figure 1. Desiccator method 150 50 10 Gas analysis method 400 50 3 Cut from the same posi
41、tion as for the 1-Cubic-metre chamber method test pieces in Figure 2. NOTE 1 For desiccator method, take 4, 3, and 3 test pieces separately from each of the three samples. NOTE 2 Except the test pieces for moisture content, all test pieces shall be perpendicular to the plane of the panel, free of bu
42、rns, and clean on edges. Dimension tolerance is 0,5 mm. 5.4 Conformance Decorative veneered plywood conforming to this International Standard shall be manufactured under a quality system which a) includes factory production and quality-control with internal auditing and b) includes external auditing
43、 of the factory quality control. When the quality control system is certified, the bodies performing certification should operate in accordance with ISO/IEC 17065. 6 Mar king , identifica tion, and documentat ion Marking and the accompanying information shall be placed on the product itself, on a la
44、bel attached to it, on its packaging, or in the accompanying commercial documents with the following information: reference to this International Standard; name (or logo) or code of the manufacturer; nominal dimensions, in millimetres; species, or species group type of veneers; bonding class; formal
45、dehyde release class; reference to the quality system; and optionally quality label and the certification body, if any; batch number or producing dates. NOTE Further documents, if requested, will be provided by the manufacturer.6 ISO 2014 All rights reserved ISO 13608:2014(E) Annex A (normative) Imm
46、ersion and delamination test A.1 Principle Bonding quality shall be determined according to whether there is delamination of the surface veneer and the degree of the delamination. Test pieces are soaked in water and dried as dry-shrinking and wet- swelling cause stress within the glue line under the
47、 face. A.2 Apparatus T h e r m o s t a t i c a l l y c o n t r o l l e d w a t e r b a t h, capable of maintaining a temperature of (20 3) C; Boiling tank, enabling test pieces to be immersed in boiling water; Ventilated drying oven, capable of maintaining a temperature of (63 3) C; Vernier, with an
48、 accuracy of 0,1 mm; Steel rule, with an accuracy of 0,5 mm. A.3 Test methods Immersion and delamination tests shall be carried out according to the exposure classes of panels to be tested. A.3.1 Pretreatment Procedure of pretreatment shall be carried out in accordance with ISO 12466-1. The classifi
49、cation given in ISO 12466-2 provides the information on the pretreatment to be carried out. A.3.2 Test procedures After being pretreated, the test pieces of different bonding quality classes of decorative veneered plywood shall be hold 3 h in a ventilated drying oven under (63 3) C. A.4 Expression of result and test report Check if there is any failure and delamination between the surface veneer
