1、January 2011DEUTSCHE NORMNormenausschuss Holzwirtschaft und Mbel (NHM) im DINDIN-SprachendienstEnglish price group 6No 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 rig
2、ht of sale for German Standards (DIN-Normen).ICS 97.140!$4Z“1911755www.din.deDDIN 68861-1Furniture surfaces Part 1: Resistance to chemical attack,English translation of DIN 68861-1:2011-01Mbeloberflchen Teil 1: Verhalten bei chemischer Beanspruchung,Englische bersetzung von DIN 68861-1:2011-01Surfac
3、es de meubles Partie 1: Comportement lattaque chimique,Traduction anglaise de DIN 68861-1:2011-01SupersedesDIN 68861-1:2001-04www.beuth.deDocument comprises 7 pages09.12 DIN 68861-1:2011-01 2 Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions 4 4 Resistance gro
4、ups 4 5 Testing . 7 6 Designation . 7 7 Test report . 7 A comma is used as the decimal marker. DIN 68861-1:2011-01 3 Foreword This document has been prepared by NA 042-05-08 GA Gemeinschaftsarbeitsausschuss NHM/NAB; Mbeloberflchen of the Normenausschuss Holzwirtschaft und Mbel (NHM) (Timber and Furn
5、iture Standards Committee). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. DIN 68861 Furniture surfaces consists of the following parts: Part 1: Res
6、istance to chemicals Part 2: Resistance to abrasion Part 4: Resistance to scratching Part 6: Resistance to cigarette burns Part 7: Resistance to dry heat Part 8: Resistance to wet heat Amendments This standard differs from DIN 68861-1:2001-04 as follows: a) a differentiation is made between solid an
7、d pasty test media; b) in Clause 5 “Testing” a method for applying a pasty test medium has been added; c) the description of the test media is more precise; d) resistance groups 1 E and 1 F have been deleted; e) table salt and sodium carbonate are no longer included as test media; f) the requirement
8、 to be met by the test medium ethanol for resistance group 1 B has been reduced from “5” to “4”; g) the informative Annex A on the comparison of assessments in accordance with DIN 68861:1981-12 with those in accordance with DIN EN 12720:1997-10 has been deleted. Previous editions DIN 68860: 1977-07
9、DIN 68861-1: 1978-06, 1981-12, 2001-04 DIN 68861-1:2011-01 4 1 Scope This standard contains information for assessing resistance to chemicals which is not included in DIN EN 12720 and applies to all rigid surfaces of surface-finished furniture regardless of material, but does not apply to leather an
10、d textile surfaces. This standard also specifies testing with specific pasty and solid test media to which furniture is commonly exposed in everyday life. Where required, the use of additional test media can be agreed upon by the parties to the contract. This standard provides a uniform method of de
11、scribing the resistance of furniture to chemicals which can be used in product standards or as additional information when labelling goods. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited a
12、pplies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN EN 12720:2009-07, Furniture Assessment of surface resistance to cold liquids DIN ISO 12757-2, Ball point pens and refills Part 2: Documentary use (DOC) 3 Terms and definitions For th
13、e purposes of this document, the following terms and definitions apply. 3.1 pasty test medium paste-like, viscous test medium 3.2 solid test medium test medium that does not run when applied to the surface or which cannot be fully soaked up by absorbent materials 4 Resistance groups Furniture surfac
14、es are to be classified into the resistance groups 1 A to 1 D according to their resistance to chemicals. Table 1 gives values for the test media for each resistance group. Table 2 gives details for the test media. DIN 68861-1:2011-01 5 Table 1 Test media and resistance groups Test media Resistance
15、groups 1 A 1 B 1 C 1 D D A D A D A D A 1 Acetic acid 16 h 5 1 h 5 2 Citric acid 16 h 5 1 h 5 3 Ammonia solution 16 h 5 2 min 5 4 Ethanol 16 h 5 1 h 4 5 Red wine 16 h 5 6 h 5 10 min 5 2 min 5 6 Beer 16 h 5 6 h 5 10 min 5 2 min 5 7 Cola 16 h 5 16 h 5 10 min 5 2 min 5 8 Coffee 16 h 5 16 h 5 10 min 5 2
16、min 5 9 Black tea 16 h 5 16 h 5 10 min 5 2 min 5 10 Black currant juice 16 h 5 16 h 5 10 min 5 2 min 5 11 Condensed milk 16 h 5 16 h 5 10 min 5 2 min 5 12 Water 16 h 5 16 h 5 10 min 5 10 min 5 13 Cleaning benzine 16 h 5 2 min 5 14 Acetone 16 h 5 10 s 2 15 Ethyl acetate and butyl acetate 16 h 5 10 s
17、2 16 Butter 16 h 5 16 h 5 17 Olive oil 16 h 5 16 h 5 18 Mustard 16 h 5 6 h 5 19 Onions 16 h 5 6 h 5 20 Disinfectant 16 h 5 10 min 5 2 min 5 2 min 5 21 Black ball point pen paste ink 16 h 5 22 Endorsing ink 16 h 5 23 Cleansing agent 16 h 5 1 h 5 24 Cleansing solution 16 h 5 1 h 5 2 min 5 2 min 5 D Te
18、st period A Requirement expressed as “numerical rating code” as in DIN EN 12720:2009-07 DIN 68861-1:2011-01 6 Table 2 Test media No Designation Description 1 Acetic acid 10 % aqueous solution 2 Citric acid 10 % aqueous solution 3 Ammonia solution 10 % aqueous solution 4 Ethanol Non denatured, 48 % a
19、queous solution (volume fraction) 5 Red wine From Southern Europe, alcohol content 13 % (volume fraction)a6 Beer 7 Cola 8 Coffee 40 g of instant coffee, freeze dried, in 1 l of boiling water 9 Black tea 10 g of tea leaves are infused with 1 l of boiling water. The tea is then allowed to draw for 5 m
20、in without stirring, after which it shall be decanted. 10 Black currant juice Commercially available, 25 % fruit content 11 Condensed milk 10 % fat content 12 Water Deionized or distilled, with pH value 7,0 0,5 13 Cleaning benzine Boiling point between 130 C and 160 C 14 Acetone 15 Ethyl acetate and
21、 butyl acetate Proportion 1:1 16 Butter Not fat-reduced, without vegetable oils 17 Olive oil Virgin 18 Mustard Medium-hot 19 Onions White 20 Disinfectant Chloramine-T, 2,5 % aqueous solution of n-chlorotoluene-4-sulfonamide sodium salt trihydrate CAS 70590-50-4) 21 Black ball point pen paste ink Com
22、position as in DIN ISO 12757-2 22 Endorsing ink Black or blue 23 Cleansing agent 12,5 % sodium dodecylbenzenesulphonate CAS 25155-30-0 12,5 % polyoxyethylene (20) sorbitan monostearate CAS 9005-67-8 5,0 % ethanol (96 %) 70,0 % water, as in no. 12 24 Cleansing solution Consisting of water as in no. 1
23、2 and 15 ml/l of the cleansing agent as in no. 23 a Bordeaux, Chianti and Rioja wines normally meet these requirements. If the test medium is a chemical, its purity shall be at least equivalent to recognized analytical grade (“p.a.”). Where not otherwise stated, percentages are percentages by mass (
24、mass fraction). Deionized or distilled water having a pH value of 7,0 0,5 shall be used for aqueous solutions. Test media shall be stored in a closed container in a dark place and shall be conditioned at (23 2) C before use.DIN 68861-1:2011-01 7 5 Testing Tests with liquid test media shall be carrie
25、d out in accordance with DIN EN 12720. Pasty test media shall be spread without pressure and using a suitable means, e.g. cotton swab onto an area the size of a disc of soft filter paper (diameter (25 2) mm). The assessment of results for pasty and solid test media shall be as described in DIN EN 12
26、720. Solid test media shall be laid on an area the size of a disc of soft filter paper as in DIN EN 12720 (diameter (25 2) mm). 6 Designation A furniture surface whose resistance to chemicals has been classified into a resistance group in accordance with this standard may be designated with “DIN 688
27、61-1” and the letter signifying the relevant resistance group. EXAMPLE Designation of a furniture surface of resistance group 1 B: Resistance to chemicals DIN 68861-1 1 B 7 Test report The test report shall include at least the following information: a) reference to this standard; b) description of test pieces (substrate material, surface finish); c) results of testing resistance to chemicals (value for each test period/test media), classification; d) any deviations from this standard; e) date of test.
