1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 4211-2:2013Furniture Tests for surfacefinishesPart 2: Assessment of resistance to wet heatBS ISO 4211-2:2013 BRITISH STANDARDNational forewordThis British Standard is the
2、UK implementation of ISO 4211-2:2013.The UK participation in its preparation was entrusted to TechnicalCommittee FW/0/1, Common Test Methods for Furniture.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all
3、 the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 71900 4ICS 97.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standar
4、d was published under the authority of theStandards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate Text affectedBS ISO 4211-2:2013 ISO 2013Furniture Tests for surface finishes Part 2: Assessment of resistance to wet heatAmeublement Essais des finitions de surfac
5、e Partie 2: valuation de la rsistance la chaleur humideINTERNATIONAL STANDARDISO4211-2Second edition2013-05-15Reference numberISO 4211-2:2013(E)BS ISO 4211-2:2013ISO 4211-2:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no
6、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 below or ISOs member
7、 body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 4211-2:2013ISO 4211-2:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 1
8、2 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus and materials 26 Preparation and conditioning 36.1 Conditioning 36.2 Test surface 37 Test procedure 37.1 Testing 37.2 Test temperatures 48 Examination of the test panel . 49 Assessment of results 410 Test report . 5Bibliogra
9、phy 6BS ISO 4211-2:2013ISO 4211-2:2013(E)ForewordISO (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 bo
10、dy 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 Electrot
11、echnical 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. In particular the different approval criteria needed for the different types of IS
12、O documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention 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 responsib
13、le 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 received. www.iso.org/patentsAny trade name used in this document is information given for the co
14、nvenience of users and does not constitute an endorsement. The committee responsible for this document is ISO/TC 136, Furniture.This second edition cancels and replaces the first edition (ISO 4211-2:1993), which has been technically revised. Significant technical changes in this version are as follo
15、ws: change in the illumination of the diffuse light source; it is now (1200 400) lx; changes in the descriptive numerical rating code: new descriptions apply.ISO 4211 consists of the following parts, under the general title Furniture Tests for surface finishes: Part 2: Assessment of resistance to we
16、t heat Part 3: Assessment of resistance to dry heat Part 4: Assessment of resistance to impactiv ISO 2013 All rights reservedBS ISO 4211-2:2013INTERNATIONAL STANDARD ISO 4211-2:2013(E)Furniture Tests for surface finishes Part 2: Assessment of resistance to wet heat1 ScopeThis part of ISO 4211 specif
17、ies a method for the assessment of the resistance to wet heat of all rigid furniture surfaces regardless of materials.It does not apply to leather and textile surfaces.The test is intended to be carried out on a part of the finished furniture, but can be carried out on test panels of the same materi
18、al, finished in an identical manner to the finished product and of a size sufficient to meet the requirements of the test.The test is carried out on unused surfaces.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable f
19、or 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 209, Aluminium and aluminium alloys Chemical compositionISO 1770, Solid-stem general purpose thermometersISO 4287, Ge
20、ometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parametersISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture3 Terms and definitionsFor the purposes
21、 of this document, the following terms and definitions apply.3.1test panelpanel including the test surfaceNote 1 to entry: It may be cut from a finished item of furniture or it may be a separate panel produced in the same manner as the finished item of furniture.3.2test surfacepart of the test panel
22、3.3test areapart of the test surface under the heat source (5.2) ISO 2013 All rights reserved 1BS ISO 4211-2:2013ISO 4211-2:2013(E)3.4roughnessRaarithmetic mean of the absolute values of the profile deviations from the mean line4 PrincipleA standard aluminium alloy block at a specified test temperat
23、ure is placed on a damp cloth in contact with the test surface. After a specified test period, the block and damp cloth are removed and the test surface is left for 16 h to 24 h. Thereafter, the test surface is cleaned and examined for damages such as discolouration, change in gloss, change in colou
24、r, blistering, and swelling. The test result is stated in a numerical rating code.5 Apparatus and materials5.1 Thermometer, as specified in ISO 1770, capable of insertion to the bottom of the centre bore of the heat source (5.2) or other means of measuring the temperature of the heat source to an ac
25、curacy of 1 C.5.2 Heat source, a block as shown in Figure 1, manufactured from aluminium alloy according to ISO 209, Al Mg Si (alloy shall contain more than 94 % aluminium). The roughness of the bottom surface shall be (2 1) m, expressed as Ra, according to ISO 4287 and ISO 4288.NOTE Alloy 6060 and
26、64430 are suitable.The following tolerances are applicable:Lengths: 0,2 mm of the nominal lengthAngles: 2 of the nominal angleDimensions in millimetresFigure 1 Aluminium block used as heat source2 ISO 2013 All rights reservedBS ISO 4211-2:2013ISO 4211-2:2013(E)5.3 Oven, which can heat the heat sourc
27、e to a temperature higher than the test temperature.5.4 Cleaning cloth, white soft absorbent cloth.5.5 White polyamide fibre cloth, a plain weave having approximately 40 threads/cm in both warp and weft direction, weighing approximately 50 g/m2, and cut (120 3) mm square.5.6 Deionised or distilled w
28、ater.5.7 Heat-insulating foam, a melamine foam, with the following characteristics: density between 8,5 kg/m3and 11,5 kg/m3; heat conductivity, less than 0,035 W/mK. The foam shall withstand a temperature higher than 200 C.5.8 Diffuse light source, light source providing evenly diffused light, givin
29、g an illumination on the test surface of (1200 400) lx. This may either be diffused daylight or be diffused artificial daylight.The daylight should be unaffected by surrounding trees, etc. When artificial daylight is used, it is recommended that it should have a correlated colour temperature of (650
30、0 50) K and an Ragreater than 92 by using a colour-matching booth in accordance with ISO 3668:1998.6 Preparation and conditioning6.1 ConditioningConditioning of the test surface shall begin at least one week before testing and shall be carried out in air at a temperature of (23 2) C and relative hum
31、idity of (50 5) %.The conditioning time shall be stated in the test report (see Clause 10).6.2 Test surfaceThe test surface shall be substantially flat and with a size sufficient to meet the requirements of Clause 7.7 Test procedure7.1 TestingImmediately after conditioning, the test shall be carried
32、 out in a test atmosphere of (23 2) C.The test surface shall be placed horizontally. It shall accommodate the required number of tests, with at least 15 mm spacing between the perimeter of adjacent test surfaces, and between the perimeters of the test surfaces and the edges of the panel. Where tests
33、 are carried out simultaneously, the perimeters of the test surfaces shall be separated by a minimum of 50 mm. If there is any reason to suppose that the properties of the test surface may vary, two identical tests shall be carried out simultaneously.The test surface shall be lightly wiped with a cl
34、eaning cloth (5.4) before the testing.Using the oven (5.3), raise the temperature of the heat source to a temperature higher than the specified test temperature, and transfer it to the heat insulating foam (5.7).Place the thermometer (5.1) or other means of measuring temperature in the centre bore o
35、f the heat source (5.2). If the temperature is not higher than the specified test temperature, the heat source shall be placed again in the oven until achieving this higher temperature. ISO 2013 All rights reserved 3BS ISO 4211-2:2013ISO 4211-2:2013(E)Place the white polyamide fibre cloth (5.5) cent
36、rally on the test surface. Spread (2 0,2) cm3of distilled or deionised water (5.6) uniformly over the whole area of the white polyamide fibre cloth.NOTE A graduated eye dropper is suitable for dispensing the distilled or deionised water.When the heat source reaches the specified test temperature wit
37、h an accuracy of 1 C, immediately place it on the centre of the white polyamide fibre cloth.After 20 min in this position, remove the block.Wipe the test surface dry with the cleaning cloth (5.4) when it has cooled.Record the position of each test surface and its temperature.Allow the test surface t
38、o stand undisturbed from 16 h to 24 h.Wipe each test surface with the cleaning cloth (5.4) and examine the test panel.7.2 Test temperaturesThe test temperatures shall be stated in requirement specifications, selected from the following:55 C 70 C 85 C 100 C8 Examination of the test panelCarefully exa
39、mine the test surface using the light source (5.8), for damage, e.g. discoloration, change in gloss and colour, blistering, swelling, and other defects. For this purpose, illuminate the surface separately and examine from different angles, directions, and planes, including angle combinations such th
40、at the light is reflected from the test surface and towards the observers eye. Viewing distance shall be 0,25 m to 1,0 m.Changes caused by the test shall also be determined by touching the surface.9 Assessment of resultsRate the test surfaces by comparing the test area with the area surrounding it a
41、ccording to Table 1.Table 1 Descriptive numerical rating codeNumerical ratingDescription5 No changetest area indistinguishable from adjacent surrounding area4 Minor changetest area distinguishable from adjacent surrounding area, only when the light source is mir-rored on the test surface and is refl
42、ected towards the observers eye, e.g. discoloration, change in gloss and colourno change in the surface structure, e.g. deformation, swelling, fibre raising, cracking, blistering3 Moderate changetest area distinguishable from adjacent surrounding area, visible in several viewing directions, e.g. dis
43、coloration, change in gloss and colourno change in the surface structure, e.g. swelling, fibre raising, cracking, blistering4 ISO 2013 All rights reservedBS ISO 4211-2:2013ISO 4211-2:2013(E)Numerical ratingDescription2 Significant changetest area clearly distinguishable from adjacent surrounding are
44、a, visible in all viewing direc-tions, e.g. discoloration, change in gloss and colourand/or structure of the surface slightly changed, e.g. swelling, fibre raising, cracking, blistering1 Strong changethe structure of the surface being distinctly changedand/or discoloration, change in gloss and colou
45、rand/or the surface material being totally or partially removedand/or the polyamide fibre cloth adhering to the surfaceEach test surface shall be rated by an experienced observer.In cases of doubt, three observers shall be required. All observers shall have good colour vision. In case of three obser
46、vers, the reported rating for the test surface shall be the average to the nearest nominal value.Duplicate tests shall be assessed and reported separately.10 Test reportThe test report shall include at least the following information:a) a reference to this part of ISO 4211 (i.e. ISO 4211-2:2013);b)
47、a description of the test panel (relevant data);c) the test temperature or temperatures;d) the conditioning time;e) the assessment of each test surface in accordance with Clause 9;f) if applicable, additional information regarding type of damage;g) any deviations from this part of ISO 4211;h) the na
48、me and address of the test facility;i) the date of the test.Table 1 (continued) ISO 2013 All rights reserved 5BS ISO 4211-2:2013ISO 4211-2:2013(E)Bibliography1 ISO 3668, Paints and varnishes Visual comparison of the colour of paints6 ISO 2013 All rights reservedBS ISO 4211-2:2013BS ISO 4211-2:2013IS
49、O 4211-2:2013(E) ISO 2013 All rights reservedICS 97.140Price based on 6 pagesThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. BSI is incorporated by Royal Charter. British Standards and other standardisation products are published by BSI Standards Limited.Britis
