1、BRITISH STANDARD BS5790-2: 1995 ISO7617-2: 1994 Coated fabrics for upholstery Part 2: Specification for PVC coated woven fabricsBS5790-2:1995 This British Standard, having been prepared under the directionof the Sector Board for Materials and Chemicals, was published under the authority of the Stand
2、ards Board and comes into effect on 15 October1995 BSI 06-1999 First published as BS2601 March1955 Second edition March1963 Third edition October1973 First published as BS5790-2 September1979 Second edition October1995 The following BSI references relate to the work on this standard: Committee refer
3、ence PRI/78 Draft announced in BSI News July1995 ISBN 0 580 24761 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/78, Coated fabrics, upon which the following bodies were represented: British Apparel and Textile Con
4、federation British Plastics Federation British Railways Board British Rubber Manufacturers Association British Textile Technology Group Department of Health Department of the Environment (Building Research Establishment) Furniture Industry Research Association RAPRA Technology Ltd. Home Office Made-
5、Up Textiles Association SATRA Footwear Technology Centre Safety Equipment Association Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date CommentsBS5790-2:1995 BSI 06-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 S
6、cope 1 2 Normative references 1 3 Technical requirements 1 4 Sampling 2 5 Testing and compliance 2 6 Marking 2 Annex A (normative) Method of selecting test specimens 4 Annex B (normative) Determination of resistance to print wear 5 Annex C (normative) Determination of colour fastness to rubbing 5 Fi
7、gure A.1 Scheme for selection of test specimens 4 Table 1 Physical requirements 3 Table 2 Colour fastness requirements 3 List of references Inside back coverBS5790-2:1995 ii BSI 06-1999 National foreword This Part of BS5790 has been prepared by Technical Committee PRI/78and is identical with ISO7617
8、-2:1994 Plastics-coated fabrics for upholstery Part2:Specification for PVC-coated woven fabrics published by the International Organization for Standardization (ISO). It is a revision of BS5790-2:1979, which is withdrawn. The Technical Committee has reviewed the provisions of ISO105-B01:1994, ISO105
9、-B02:1994, ISO1421:1977, ISO4674:1977 and ISO7854, to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. Related British Standards to ISO1421:1977, ISO4674:1977 and ISO7854 are: BS3424-4:1982, BS3424-5:1982 and BS3424-9:1990. Cros
10、s-references International standard Corresponding British Standard ISO 105-A02:1993 BS EN 20105 Textiles. Tests for colour fastness Part A02:1995 Grey scale for assessing change in colour (Identical) ISO 105-X12:1993 BS EN ISO 105 Textiles Tests for colour fastness Part X12:1995 Colour fastness to r
11、ubbing (Identical) ISO 176:1976 BS 2782 Methods of testing plastics Part 4 Chemical properties Methods 465A and 465B:1979 Determination of loss of plasticizers (activated carbon method) (Identical) ISO 2231:1989 BS 3424 Testing coated fabrics Part 2:1992 Method 4. Pre-conditioning and conditioning o
12、f coated fabrics for testing purposes (Identical) ISO 2286:1986 BS EN 22286:1994 Methods for the determination of length and width of a roll, net mass and mean mass per unit area of a piece, cut, roll or sample and the determination of thickness for coated fabrics (Identical) ISO 2411:1991 BS 3424 T
13、esting coated fabrics Part 7:1982 Method 9. Method for determination of coating adhesion strength (Technically equivalent) ISO 5978:1990 BS EN 25978:1993 Rubber- or plastics-coated fabrics. Determination of blocking resistance (Identical)BS5790-2:1995 BSI06-1999 iii Additional information. With refe
14、rence to3.6 and footnote3 of ISO7617-2:1994, attention is drawn to dangers inherent in extrapolating laboratory tests on components to predictions of the fire behaviour of associated products. In this regard reference should be made to the British Standards listed below. It should also be borne in m
15、ind that cleaning techniques and soiling of the product can affect the flammability characteristics of materials and that measures taken to reduce the ignitability of an assembly may adversely affect other fire properties such as smoke and toxic gas evolution. BS EN 1021, Furniture. Assessment of th
16、e ignitability of upholstered furniture. BS EN 1021-1:1994, Ignition source: smouldering cigarette. BS EN 1021-2:1994, Ignition source: match flame equivalent. BS 5852:1990, Methods of test for assessment of the ignitability of upholstered seating by smouldering and flaming ignition sources. BS 6261
17、:1982, Method for evaluating the application of and interaction between components in upholstered furniture. BS 7176:1991, Specification for the resistance to ignition of upholstered furniture for non-domestic seating by testing composites. In the UK, the Furniture and Furnishings (Fire) (Safety) Re
18、gulations1988 (S.I.1324), and other such legislation which may from time to time be enacted, apply. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard
19、does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, pages1to6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This
20、will be indicated in the amendment table on the inside front cover.iv blankISO7617-2:1994(E) BSI 06-1999 1 1 Scope This part of ISO7617 specifies requirements for coated fabrics for upholstered furniture, manufactured by applying to one side of a woven cloth a substantially continuous coating of a s
21、uitably plasticized polymer of vinyl chloride, or a copolymer the major constituent of which is vinyl chloride. Such coatings are known as polyvinyl chloride (PVC) coatings. The present specification covers two grades (A and B) of PVC-coated woven fabric. 2 Normative references The following standar
22、ds contain provisions which, through reference in this text, constitute provisions of this part of ISO7617. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO7617 are encouraged to investigate the
23、possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO105-A02:1993, Textiles Tests for colour fastness PartA02:Grey scale for assessing change in colour. ISO105-B01:, Textiles Tests
24、for colour fastness PartB01:Colour fastness to light:Daylight 1) . ISO105-B02:1994, Textiles Tests for colour fastness PartB02:Colour fastness to artificial light: Xenon arc fading lamp test. ISO105-X12:1993, Textiles Tests for colour fastness PartX12:Colour fastness to rubbing. ISO176:1976, Plastic
25、s Determination of loss of plasticizers Activated carbon method. ISO1421:1977, Fabrics coated with rubber or plastics Determination of breaking strength and elongation at break. ISO2231:1989, Rubber- or plastics-coated fabrics Standard atmospheres for conditioning and testing. ISO2286:1986, Rubber-
26、or plastics-coated fabrics Determination of roll characteristics. ISO2411:1991, Rubber- or plastics-coated fabrics Determination of coating adhesion. ISO4674:1977, Fabrics coated with rubber or plastics Determination of tear resistance. ISO5978:1990, Rubber- or plastics-coated fabrics Determination
27、of blocking resistance. ISO7854:, Rubber- or plastics-coated fabrics Determination of resistance to damage by flexing 2) . 3 Technical requirements 3.1 Physical requirements The material shall comply with the appropriate requirements of Table 1. 3.2 Colour fastness requirements The material shall co
28、mply with the requirements of Table 2. 3.3 Visual examination The coating of the material shall be uniformly applied and shall be free from visible flaws and cracks and when viewed under a magnification of 10shall be substantially free from pinholes. The base fabric, unless coated with an unpigmente
29、d coating, shall not be visible when viewed from the coated side. 3.4 Colour, grain and finish The colour, grain and finish of the material, whether in single-colour or multicolour effects, shall be agreed between the purchaser and the supplier. Colours shall be compared under the conditions stipula
30、ted in ISO105-B01. 3.5 Width of material The usable width of material when measured in accordance with ISO2286 shall be as agreed between the purchaser and the supplier. For this purpose, the term “usable width” means the width of material that is coated in such a manner that it complies with the re
31、quirements of3.3. 3.6 Flammability A method of test for determination of the flammability characteristics of these materials shall be included as a mandatory requirement to be complied with in the absence of other, more stringent requirements of national authorities 3) . 1) To be published. (Revisio
32、n of ISO105-B01:1989) 2) To be published. (Revision of ISO7854:1984) 3) Details of the method to be employed for this purpose are under consideration by ISO/TC136, Furniture.ISO7617-2:1994(E) 2 BSI 06-1999 4 Sampling If individual rolls can be identified with manufacturing batches, at least one samp
33、le shall be taken from each batch in the consignment. Each sample shall be regarded as being representative of its source, and suitable measures shall be taken to preserve the identity between the samples and batch numbers. If individual rolls cannot be identified in this way, the number of samples
34、to be regarded as being representative of the bulk shall be fixed by agreement between the purchaser and the supplier. Such samples shall be drawn at random. 5 Testing and compliance Tests shall be conducted on a set of specimens selected from each sample. The method of selecting specimens from each
35、 sample shall be in accordance with the requirements of Annex A. If the specimens after testing comply with the appropriate requirements given in Table 1 and Table 2, the bulk of the coated fabric which the sample represents shall be deemed to comply with the requirements of this part of ISO7617. If
36、 any of the specimens tested do not comply with any of the appropriate requirements given in Table 1 and Table 2, the tests which the specimens have failed shall be repeated twice. For this purpose, two further samples shall be taken from the same source as the original sample, and test specimens sh
37、all be taken from each sample so that duplicate tests may be conducted. If all the re-test results comply with the appropriate requirements of Table 1 and/or Table 2, then the bulk represented by the samples from which the specimens for re-testing were taken, together with the original samples, shal
38、l be deemed to comply with the requirements of this part of ISO7617. If any of the results of the re-tests do not comply with the appropriate requirements of Table 1 or Table 2, the bulk represented by those samples shall be deemed not to comply with the requirements of this part of ISO7617. 6 Marki
39、ng Each roll of fabric shall have a label attached bearing the following information: a) the name and/or distinctive mark of the manufacturer and an identification reference for that material; b) the batch number; c) the colour; d) the length; e) the usable width; f) the reference number of this par
40、t of ISO7617 (i.e.ISO7617-2) and the appropriate grade reference.ISO7617-2:1994(E) BSI 06-1999 3 Table 1 Physical requirements Table 2 Colour fastness requirements Property Limit Requirements Method of test Grade A Grade B Total mass/unit area (g/m 2 ) a min. 550 420 ISO 2286 Coating mass/unit area
41、(g/m 2 ) a min. 300 240 ISO 2286 Tearing force (N) longitudinal transverse min. min. 44 44 31 31 ISO 4674:1977, method A1 Coating adhesion (N per 50 mm width) min. 26 26 ISO 2411 Breaking load (N) longitudinal transverse min. min. 580 580 450 450 ISO 1421:1977, method B Flex cracking (cycles) b min.
42、 400000 300000 ISO7854 Heat ageing (% coating mass loss) max. 5 5 ISO176 Print wear (change in appearance) (grey scale rating) min. 3 3 See Annex B Thickness (mm) at 2 kPa, minimum individual reading min. 0,4 0,4 ISO2286 Blocking resistance Separation without damage to surface ISO 5978 a The inclusi
43、on of minimum values for total mass/unit area and coating mass/unit area does not imply that a minimum value for base fabric mass/unit area may be calculated by subtraction. b In the event of dispute, Schildknecht apparatus shall be employed. Property Limit Requirements Method of test Grade A Grade
44、B Colour fastness to artificial light (xenon arc) to rubbing (wet and dry) min. min. 6 4 6 4 ISO 105-B02 See Annex C ISO7617-2:1994(E) 4 BSI 06-1999 Annex A(normative) Method of selecting test specimens The specimens for testing shall be selected from the sample in accordance with the scheme illustr
45、ated in Figure A.1, which shows the positions from which the specimens for each type of test shall be taken, except that the specimens required for testing colour fastness to light and those required for heat ageing tests shall be selected from any suitable portion of the sample. In the case of mult
46、icolour samples, the specimen shall if possible include all colours. If it is not possible to include all colours, sufficient specimens shall be taken to enable all colours to be tested. Key to Figure A.1 M Mass determinations Tr Tear strength (across longitudinal threads) Tr Tear strength (across t
47、ransverse threads) Tn Breaking load (longitudinal) Tn Breaking load (transverse) Ad Coating adhesion Fl Resistance to flex cracking (longitudinal direction) Fl Resistance to flex cracking (transverse direction) Heat ageing (any convenient location) Rb Colour fastness to rubbing (wet and dry) P Print
48、 wear (2 pieces,230mm 50mm) B Blocking resistance Figure A.1 Scheme for selection of test specimensISO7617-2:1994(E) BSI 06-1999 5 Annex B(normative) Determination of resistance to printwear B.1 Principle A specimen is subjected to500cycles of simple harmonic abrasion using a known abradant under a
49、known pressure. It is then assessed for colour difference with an unabraded portion using the grey scale for assessing change in colour. B.2 Apparatus The apparatus shall be as described in ISO105-X12, but with the following modifications: a) The weightpiece applied to the rubbing finger, or peg, shall be such that a total mass of1500g is brought to bear on the glass plate. b) The frequency of operation of the apparatus shall be0,25Hz (i.e.0,5 strokes per second: each cycle comprises one outward stroke and one return str
