EN 12721:1997

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Pohištvo - Ugotavljanje odpornosti površine proti vlažni toplotiMöbel - Bewertung der Beständigkeit von Oberflächen gegen feuchte Hitze (ISO 4211-2:1993 modifiziert)Meubles - Evaluation de la résistance des surfaces a la chaleur humide (ISO 4211-2:1993 modifiée)Furniture - Assessment of surface resistance to wet heat (ISO 4211-2:1993 modified)97.140PohištvoFurnitureICS:Ta slovenski standard je istoveten z:EN 12721:1997SIST EN 12721:1997en01-oktober-1997SIST EN 12721:1997SLOVENSKI
STANDARDSIST ISO 4211-2:19951DGRPHãþD



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



SIST EN 12721:1997



INTERNATIONAL STANDARD ISO 4211-2 First edition 1993-12-01 Furniture - Tests for surfaces - Part 2: Assessment of resistance to vvet heat Ameublement - Essais des finitions de surface - Partie 2: ivalua tion de Ia rksistance a Ia chaleur humide Reference nunher 60 42% 1-2:1993(E) SIST EN 12721:1997



ISO 421%2:1993[E) a Scope .DO.OO.O.OD.D.OO~~~~~~~~~~~.~~~~~~~~,~.~~.~~~~~~~~~~~~~~~~~~~~~~~“~~~~~“~~~~~~~~~~~~~~”~.~ 1 2 Normative references ~.0.~0.D~.0~.~.~.~~~.~~~~.~~.~~.~.~~~~~~~~.~“.~.”~~. 1 3 Principle . . . .D. 1 4 Apparatus and materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .“. 1 5 Test temperatures .,. 2 6 Test Panel D.,.~. 2 7 Procedure .,,,,.,.,.,.,.,,,.,.,.,,,,.,. 3 8 Examination of test Panel “O~~00.0~00000~.~.00.~~~~~.~~~“~”~~~~~~~~~~.~~~~.~.~~.~~ 4 9 10 Test report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .~. 4 Page Contents 0 ISO 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Gase Postale 56 l CH-l 211 Geneve 20 l Switzerland Printed in Switzerland ii SIST EN 12721:1997



ISO 4211=2:1993(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation 0% national Standards bodies (ISO member bedies). The work of preparing international Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. lnternational organizations, governmental and non-governmental, in liaison with ISO, also take patt in the work. 6SO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. International Standard ISO 421 l-2 was prepared by Technical Committee ISO/TC 136, Fumiture, Sub-Committee SC 1, Test methods. OS0 421% consists of the following Parts, under the general title Fumiture - Tests for surfaces: - Pari 2: Assessment of resistance to wet heat - Part 3: Assessment of resistance to dry heat - Part 4: Assessment of resistance to Impact - Part 5: Assessment o f resistance to scratching - Part 6: Assessment of resistance to abrasion - Part 7: Assessment of adhesion of finishes to Substrate NOTE 1 ISO 4211 :1979 was originally published as an independent International Standard, but is now regarded as part 1 of this series. SIST EN 12721:1997



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INTERNATIONAL STANQARD ISO 4211=2:1993(E) Furniture - Tests for surfaces - Part 2: Assessment of resistance to wet heat 1 Scope This part of ISO 4211 specifies a method of assess- ment of surface resistance to wet heat and relates to the hard surfaces of all finished furniture, regardless of material, except for finishes on leather and coated fabrics which are excluded from this part of ISO 4211. The test may be carried out on finished furniture but is generally carried out on test Panels of a size suffi- cient to meet the requirements of the test and of the same material and finished in an identical manner to the finished furniture. 2 Normative references The following Standards contain provisions which, through reference in this text, constitute provisions 0% this patt of ISO 4211. At the time of publication, the editions indicated were valid. All Standards are subject to revision, and Parties to agreements based on this part 0% ISO 4211 are encouraged to investigate the possibility of applying the most recent editions of the Standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 209-1: 1989, Wrought aiuminium and aluminium alloys - Chemical composition and forms of products - Part 1: Chemical composition. ISO 1770:1981, Solid-stem general purpose ther- mometers. ISO 3668: 1976, Paints and varnishes - Visual com- parison of the co/our of paints. ISO 4211: 1979, Furniture - Assessment of surface resistance to cold liquids. 3 Principle A Standard aluminium alloy block at a specified test temperature is placed on a damp cloth in contact with the surface of the test Panel. After a specified period of time the block and damp cloth are removed. The test area is wiped dry and the test Panel left undis- turbed for at least 16 h. lt is then examined under specified lighting conditions for signs of darnage (dis- coloration, Change in lustre, blistering or other de- fects). The darnage is assessed by reference to a descriptive numerical rating Code. 4 Apparatus and materials 4.1 Thermometer, as specified in ISO 1770, ca- pable of insertion to the bottom of the centre bore of the heat Source (4.2) or other means of measuring the temperature of the heat Source to an accuracy of + 1 “C. - 4.2 Heat Source, block as shown in figure 1 manu- factured from aluminium alloy to ISO 209-1, Al Mg Si (alloy 6
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