1、BRITISH STANDARD BS 7552-1: 1992 ISO 9866-1: 1991 Effect of dry heat on fabrics under low pressure Part 1: Method for dry heat treatment of fabricsBS7552-1:1992 This British Standard, having been prepared under the directionof the Textiles andClothing Standards PolicyCommittee, was publishedunder th
2、e authorityofthe StandardsBoardand comesintoeffect on 31 January 1992 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference TCM/25 Draft for comment 89/47343 DC ISBN 0 580 20495 2 Committees responsible for this British Standard The preparation of this Bri
3、tish Standard was entrusted by the Textiles and Clothing Standards Policy Committee (TCM/-) to Technical Committee TCM/25, upon which the following bodies were represented: Association of Consulting Scientists Association of Manufacturers of Domestic Electrical Appliances British Retailers Associati
4、on British Textile Confederation Home Laundering Consultative Council International Wool Secretariat Lambeg Industrial Research Association Mail Order Traders Association Ministry of Defence National Wool Textile Export Corporation Soap and Detergent Industry Association Society of Dyers and Colouri
5、sts Textile Research Council (FCRA) Textile Research Council (HATRA) Amendments issued since publication Amd. No. Date CommentsBS7552-1:1992 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative reference 1 3 Principle 1 4 Apparatus 1 5 Atmo
6、spheres for conditioning and testing 1 6 Procedure 1 7 Test report 1 Publication(s) referred to Inside back coverBS7552-1:1992 ii BSI 10-1999 National foreword This Part of BS 7552 has been prepared under the direction of the Textiles and Clothing Standards Policy Committee. It is identical with ISO
7、9866-1:1991 “Textiles Effect of dry heat on fabrics under low pressure Part 1: Procedure for dry-heat treatment of fabrics”, which was prepared by Technical Committee38, Textiles, of the International Organization for Standardization (ISO) with the active participation of the UK. A British Standard
8、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 does not of itself confer immunity from legal obligations. Cross-reference International Standard Corresponding British
9、 Standard ISO 139:1973 BS 1051:1981 Glossary of terms relating to the conditioning, testing and mass determination of textiles a (Technically equivalent) a A revision is in preparation. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an in
10、side back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS7552-1:1992 BSI 10-1999 1 1 Scope This part of ISO9866 specifies a method for the dry-heat treatme
11、nt of fabrics for use in assessing the dimensional stability and other heat-related properties of fabrics (see e.g.ISO9866-2:1991, Textiles Effect of dry heat on fabrics under low pressure Part 2: Determination of dimensional change in fabrics exposed to dry heat). 2 Normative reference The followin
12、g standard contains provisions which, through reference in this text, constitute provisions of this part of ISO9866. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this part of ISO9866 are encouraged to investiga
13、te the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 139:1973, Textiles Standard atmospheres for conditioning and testing. 3 Principle A specimen of fabric is heated by contac
14、t with a plane, hot surface under accurately known conditions. 4 Apparatus 4.1 Press, consisting of a plane heated metal plate whose temperature can be adjusted with the range100 C to210 C with an accuracy of 2 C, and a horizontal bed. When closed, the press exerts a known, uniform pressure, accurat
15、e to 25%, between the plate and bed. The bed is covered with flexible and compressible cladding 1)of low thermal conductivity and heat capacity, which is capable of conforming to slight variations in the thickness of specimens or of the gap between plate and bed. The cladding shall be unaffected by
16、the highest temperature used, and shall not absorb moisture. 4.2 Specimen holder, consisting of a thin flexible sheet of material, with low friction and low heat capacity 2) , which is larger than the heated plate and is supported at its edges by a light frame which does not impede contact between t
17、he plate and bed. 5 Atmospheres for conditioning and testing Unless otherwise indicated, the following atmospheres, as specified in ISO139, shall be used: a) for preconditioning, an atmosphere having a relative humidity of10% or lower and a temperature of50 C or lower; b) for conditioning and testin
18、g, an atmosphere having a relative humidity of (65 2)% and a temperature of (20 2) C or (27 2) C. 6 Procedure 6.1 Set the press (4.1) at the test temperature specified in the relevant test method. Leave the press closed until it reaches a steady temperature. 6.2 Place a preconditioned see clause5 a)
19、 fabric specimen on the specimen holder(4.2). Open the press, place the holder and specimen in position on the bed, and close the press. Immediately after the time specified in the relevant test method has elapsed, open the press and remove the specimen and holder. 6.3 If required, condition the spe
20、cimen in the standard atmosphere see clause5 b) for4h or until equilibrium is reached. 7 Test report The test report shall include the following information: a) the number and year of publication of this International Standard,i.e.ISO9866-1:1991; b) all details necessary for the identification of th
21、e sample(s) treated; c) the test conditions used: temperature, pressure, treatment time, and (if relevant) specimen dimensions and the side of the specimen in contact with the heater. 1) A silicone foam rubber layer, supported on a low-density textile wadding, has proved suitable for this purpose. 2
22、) A sheet of0,15mm thickness polytetrafluoroethylene with glass fibre reinforcement and a total mass per unit area of250g/m 2has been found suitable.2 blankBS7552-1:1992 BSI 10-1999 Publication(s) referred to See national foreword.BS 7552-1: 1992 ISO 9866-1: 1991 BSI 389 Chiswick High Road London W4
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