BS 5131-2 11-1983 Methods of test for footwear and footwear materials - Solings - Resistance of solings to short-term contact with a hot surface《鞋靴和鞋靴材料试验方法 第2部分 鞋底 第11节 鞋底与热表面短时接触.pdf
《BS 5131-2 11-1983 Methods of test for footwear and footwear materials - Solings - Resistance of solings to short-term contact with a hot surface《鞋靴和鞋靴材料试验方法 第2部分 鞋底 第11节 鞋底与热表面短时接触.pdf》由会员分享,可在线阅读,更多相关《BS 5131-2 11-1983 Methods of test for footwear and footwear materials - Solings - Resistance of solings to short-term contact with a hot surface《鞋靴和鞋靴材料试验方法 第2部分 鞋底 第11节 鞋底与热表面短时接触.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS5131-2.11: 1983 Methods of test for Footwear and footwear materials Part2: Solings Section2.11 Resistance of solings to short-term contact with a hot surface NOTEIt is recommended that this Section should be read in conjunction with the information in the General introduction toBS
2、5131, published separately. UDC685.31:620.1:539.434:685.312.12BS5131-2.11:1983 This British Standard, having been prepared under the directionof the Clothing Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 31 March1983 BSI 10-1999 The following BSI r
3、eferences relate to the work on this standard: Committee reference CLM/7 Draft for comment80/35240 DC ISBN0 580 13259 5 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
4、 a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. T
5、his will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date of issue CommentsBS5131-2.11:1983 BSI 10-1999 i Contents Page 1 Scope 1 2 References 1 3 Principle 1 4 Apparatus 1 5 Preparation and conditioning of test pieces 1 6 Procedure 2 7
6、 Assessment of heat damage 2 8 Test report 2 Figure 1 General arrangement of the apparatus 3 Figure 2 Details of the bit and heating block 4ii blankBS5131-2.11:1983 BSI 10-1999 1 1 Scope This Section describes a method for the visual assessment of the effects on soling materials of short-term contac
7、t with a hot surface. This method enables the assessment of the suitability of soling materials for footwear which is used in situations where brief contact with hot objects is likely. This test should not be used for assessing the effects of long-term exposure at elevated temperatures. 2 References
8、 This Section refers to the following publications: BS1006, Methods of test for colour fastness of textiles and leather. BS5131, Methods of test for footwear and footwear materials. BS5131-2.7, The preparation of test pieces from soling materials for physical testing. 3 Principle A pre-heated metal
9、block is placed on to the soling material, under constant pressure, for a short fixed period of time and the appearance of the heated part of the surface is examined before and after bending around a mandrel. Depending on the purpose of the test, it may be carried out either: a) at one specified tem
10、perature; or b) over a range of increasing temperatures until visible degradation has occurred. If the tests are carried out according to b) it is usually possible to identify a temperature above which significant surface damage of the test piece occurs. 4 Apparatus 4.1 A cylindrical copper body, re
11、ferred to as the bit, of mass200 20g and with the lower end reduced to a flat square face with sides of dimension25.5 1mm. The bit has a central longitudinal cavity of6.5mm diameter, extending to4mm from the outer working surface of the square end of the bit, to receive a temperature measuring devic
12、e. The other dimensions of the bit are shown inFigure 2. 4.2 A metal heating block, of mass530 50g, which surrounds the cylindrical part of the bit. This heating block contains an electrical resistance heating element and a means of control (an “on/off” switch is sufficient) to pre-heat the bit to a
13、ny desired temperature up to a maximum of400 C. The dimensions of the heating block are shown in Figure 2. 4.3 A device for measuring the internal temperature of the bit close to its square end. A convenient way of measuring the temperature is a mercury-in-glass thermometer reading to400 C. NOTEFor
14、such a thermometer it is recommended that the small space between the thermometer bulb and the wall of the cavity be filled with a metal alloy having a melting point below150 C. 4.4 A means of raising and lowering the bit, together with the heating block, to bring its face into uniform contact with
15、the test piece, in a horizontal plane and under a uniformly distributed pressure of202kPa. 4.5 A self-aligning platform, of suitable diameter, to receive the test piece and maintain uniform pressure on the test piece. 4.6 A hinged support with thermally insulated face on which the face of the bit re
16、sts during heating, and which can be moved aside to enable the bit to be lowered on to the test piece. 4.7 A mandrel of101mm diameter. WARNING. As toxic fumes may be released from some solings during this test it is necessary to site the apparatus in a well ventilated area. NOTEThe test apparatus sh
17、own inFigure 1 is a slightly modified form of that specified inBS1006-UK-LA. It is obtainable from the SATRA Footwear Technology Centre, SATRA House, Rockingham Road, Kettering, Northants, NN169JH. 5 Preparation and conditioning of test pieces Prepare a test sheet having a thickness in the range3.0
18、to7.0mm and cut from it test pieces30 2mm wide by70mm (minimum) long as described inBS5131-2.7. Allow the time interval specified inBS5131-2.7 to elapse between test sheet preparation and test piece cutting. For leather specimens condition test pieces for48h at20 C and65% relative humidity before te
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