1、April 2012 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 9
2、7.150!$C“1883229www.din.deDDIN EN ISO 26987Resilient floor coverings Determination of staining and resistance to chemicals (ISO 26987:2008)English translation of DIN EN ISO 26987:2012-04Elastische Bodenbelge Bestimmung der Fleckenempfindlichkeit und Chemikalienbestndigkeit (ISO 26987:2008)Englische
3、bersetzung von DIN EN ISO 26987:2012-04Revtements de sol rsilients Dtermination de la rsistance au tachage et aux produits chimiques (ISO 26987:2008)Traduction anglaise de DIN EN ISO 26987:2012-04SupersedesDIN EN 423:2002-04www.beuth.deDocument comprises pagesIn case of doubt, the German-language or
4、iginal shall be considered authoritative.1003.12 DIN EN ISO 26987:2012-04 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 219 “Floor coverings” of the International Organization for Standardization (ISO) and has been taken over
5、 as EN ISO 26987:2012 by Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings”, (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-04-05 AA
6、 Bodenbelge. Amendments This standard differs from DIN EN 423:2002-04 as follows: a) Annex A “Examples of cleaning and stain removal products” has been included; b) Clause 4 “Sampling and preparation of test piece” has been revised; c) Clause 6 “Test procedure” has been modified; d) Table 1 in Claus
7、e 7 “Expression of results” has been revised; e) Clause 8 “Test report” has been rendered more precise. Previous editions DIN EN 423: 1993-10, 2002-04EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 26987 February 2012 ICS 97.150 Supersedes EN 423:2001English Version Resilient floor covering
8、s - Determination of staining and resistance to chemicals (ISO 26987:2008) Revtements de sol rsilients - Dtermination de la Elastische Bodenbelge - Bestimmung der This European Standard was approved by CEN on 24 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
9、 which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. Thi
10、s European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN memb
11、ers are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
12、 Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN natio
13、nal Members. Ref. No. EN ISO 26987:2012: E(ISO 26987:2008) rsistance au tachage et aux produits chimiques Fleckenempfindlichkeit und Chemikalienbestndigkeit (ISO 26987:2008) Contents 2 Page Foreword 3 1 Scope 4 2 Principle 4 3 Apparatus and materials .4 4 Sampling and preparation of test piece 5 5 A
14、tmosphere for conditioning and testing .5 6 Test procedure .5 6.1 Application of liquid substances .5 6.2 Application of paste substances 5 6.3 Duration of contact 5 6.4 Cleaning and observation .5 7 Expression of results 6 8 Test report 6 Annex A (informative) Examples of cleaning and stain removal
15、 products .7 Bibliography 8 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 Foreword The text of ISO 26987:2008 has been prepared by Technical Committee ISO/TC 219 “Floor coverings” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 26987:2012 by Technical C
16、ommittee CEN/TC 134 “Resilient, textile and laminate floor coverings” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national
17、 standards shall be withdrawn at the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes E
18、N 423:2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Icel
19、and, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 26987:2008 has been approved by CEN as a EN ISO 26987:2012 without any modifica
20、tion. 3 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 1 Scope This International Standard specifies a procedure for the determination of the reaction of resilient floor covering to chemical substances. 2 Principle Various chemical substances in liquid or paste form are placed on a test piece for de
21、fined periods and then removed. After cleaning has been carried out, the resulting change of appearance is assessed under specified lighting conditions. 3 Apparatus and materials 3.1 Standard laboratory equipment. 3.1.1 Pipettes. 3.1.2 Watch glass, diameter 40 mm. 3.1.3 Spatulas. 3.2 Chemical substa
22、nces in liquid or paste form. This International Standard does not specify or suggest the chemical substances to be tested. 3.3 Standard cleaning and stain removal products. 3.3.1 White cotton, in pad or cloth form. 3.3.2 Brushes, hard, unlikely to score the surface. 3.3.3 Warm water, used alone or
23、with selected cleaning products (see Annex A). 3.4 Abrasive materials (abrasives, abrasive scouring pads, steel wool No. 00 or scouring powder, or abrasive papers, grain size P 240 or finer, used with water). 3.5 Special cleaning products, recommended by the floor covering manufacturer. 3.6 Illumina
24、tion device, comprising a lamp of correlated colour temperature 5 500 K to 6 500 K, mounted to give an intensity of light at the viewing platform of (1 500 100) lx and in such a way as to illuminate the test piece vertically from above. The surroundings shall be neutral and darkened. The intensity o
25、f the light shall be checked frequently by the use of a luxometer. The lifetime of the lamp, as given by the manufacturer, shall not be exceeded. 4 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 3.7 Rotary viewing table, which enables the test piece to be rotated so that it can be viewed from all di
26、rections under the standard illumination. 4 Sampling and preparation of test piece Take a representative sample from the available floor covering material. The sample should be obtained from a new roll or carton and should not have been treated with any floor finish/polish. Take one test piece in ea
27、ch colour to be tested with a surface area of at least 3 000 mm2, for each of the chemical substances to be tested. If the test uses a chemical substance likely to cause swelling or deformation of the test piece, e.g. prolonged contact with the solvent, bond the test piece to a fibre-cement board at
28、 least 5 days before testing. Identify the test pieces corresponding to each of the substances tested, either by marking numbers on the test piece (using a marking which is not affected by the material used in the test), or by a sketch, diagram or photograph. 5 Atmosphere for conditioning and testin
29、g Condition the test pieces at a temperature of (23 2) C and a relative humidity of (50 5) % for a minimum of 24 h. Maintain this condition when carrying out the test. 6 Test procedure 6.1 Application of liquid substances 6.1.1 Using a clean pipette (3.1.1), pour a small quantity of the liquid chemi
30、cal substance to test (see 3.2) into the centre of the marked position of the test piece. Apply the convex face of a watch glass (3.1.2) to the liquid and remove it immediately. If the diameter of the splash of the liquid chemical substance is more than 15 mm, apply the watch glass again. Leave it i
31、n position this time, in such a way as to produce a splash of liquid chemical substance covering an area of 300 mm2to 400 mm2. 6.1.2 If the diameter of the chemical substance does not exceed 15 mm, add a few more drops and spread it again by applying the watch glass. Leave it in position this time,
32、in such a way as to produce a splash of the liquid chemical substance of 300 mm2to 400 mm2. 6.2 Application of paste substances With a spatula (3.1.3), spread about 1 000 mm3of the paste chemical substance to test (see 3.2) over an area of 300 mm2to 400 mm2(i.e. thickness 2,5 mm to 3 mm). 6.3 Durati
33、on of contact The main duration of contact shall be 2 h with the evaluation of the sample being done within 5 min of removing the chemical substance. After cleaning and observation if the test piece has been adversely affected (staining, dulling, softening, swelling, etc.), a new test shall be condu
34、cted for a period of 30 min. 6.4 Cleaning and observation 6.4.1 Before cleaning, remove chemical substances which are still liquid with cotton (3.3.1), working from the edge towards the centre of the stain. Scrape off the remains of paste with a spatula (3.1.3) and wipe with cotton as above. Clean t
35、he surface, working from the edge toward the centre of the stain, using one or more 5 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 cleaning and stain removal products as described in 3.3. See also Annex A. After cleaning has been carried out, examine the residual staining using the illumination de
36、vice (3.6) from a distance of approximately 800 mm at an approximate angle of 45 degrees and from all directions by slowly rotating the viewing table (3.7). 6.4.2 If a stain is still visible, rub it down with an abrasive material (see 3.4) or a cleaning product recommended by the manufacturer (3.5),
37、 and examine it as described in 6.4.1. 7 Expression of results After observing the test pieces as described in 6.4, assign an index to each of the test pieces, according to the observed effect of the test after cleaning/abrasion, as shown in Table 1. Table 1 Interpretation and presentation of result
38、s Index Effect of test after cleaning/abrasion 0 Not affected1 Slight 2 Moderate 3 Severe 8 Test report The test report shall contain the following information: a) a statement that the tests were performed in accordance with this International Standard (ISO 26987); b) complete identification of the
39、floor covering tested, including type, source, colour and manufacturers reference numbers; c) history of the sample, i.e. from what source was the sample secured, new carton or roll manufactured when; d) the chemical substances, type of cleaning and stain removal products and abrasive materials used
40、 and the contact periods; e) the test results in accordance with Table 1; f) any deviation from this International Standard which may have affected the results. 6 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 Annex A (informative) Examples of cleaning and stain removal products Synthetic detergent,
41、 e.g. sodium alkysulfate Soap Alkaline products, e.g. washing soda or ammonia solution (5 %) Hydrogen peroxide Sodium hypochlorite Sodium thiosulfate, 1 % solution Oxalic acid Denatured ethanol White spirit Turpentine 7 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04 Bibliography 1 EN 423, Resilient floor coverings Determination of resistance to staining 2 ASTM F925, Standard Test Method for Resistance to Chemicals of Resilient Flooring 3 JIS A 1454, Test methods Resilient floorcoverings. Staining Test, Section 6.12 8 EN ISO 26987:2012 (E) DIN EN ISO 26987:2012-04
