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1、BRITISH STANDARD BS 5131-4.4: 1990 Methods of test for Footwear and footwear materials Part 4: Other components Section 4.4 Heel pin holding strength of fibreboard NOTEIt is recommended that this Section should be read in conjunction with BS 5131-0, published separately. Licensed Copy: sheffieldun s
2、heffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 This British Standard, having been prepared under the direction of the Textiles and Clothing Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31 D
3、ecember 1990 BSI 10-1999 First published February 1975 Second edition December 1990 The following BSI references relate to the work on this standard: Committee reference TCM/39 Draft for comment 89/36227 DC ISBN 0 580 18822 1 Committees responsible for this British Standard The preparation of this B
4、ritish Standard was entrusted by the Textiles and Clothing Standards Policy Committee (TCM/-) to Technical Committee TCM/39, upon which the following bodies were represented: British Footwear Manufacturers Federation British Leather Confederation British Rubber Manufacturers Association British Stee
5、l plc Consumer Standards Advisory Committee of BSI Cork Industry Federation Footwear Components Federation Footwear Distributors Federation Institute of Trading Standards Administration Iron and Steel Trades Confederation Lancashire Footwear Manufacturers Association Mail Order Traders Association o
6、f Great Britain Ministry of Defence National Union of Footwear, Leather and Allied Trades Office of Fair Trading SATRA Footwear Technology Centre The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Adhesives and Sealants Association B
7、ritish Paper and Board Industry Federation British Plastics Federation Multiple Shoe Retailers Association RAPRA Technology Ltd. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131
8、-4.4:1990 BSI 10-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Principle1 3Apparatus1 4Conditioning1 5Preparation of test specimens1 6Procedure1 7Expression of results3 8Test report3 Figure 1 Compression cage, combining the two parts of the attachment for the tensi
9、le testing machine2 Publication referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 ii BSI 10-1999 Foreword This Section of BS 5131 has been prepared under the direction of the Textiles and Clothing
10、Standards Policy Committee. It supersedes BS 5131-4.4:1975, which is withdrawn. 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 does not of itself c
11、onfer 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, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indica
12、ted in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 BSI 10-19991 1 Scope This Section of BS 5131 describes a method for measuring the ability of a fibreboard to hold a heel p
13、in and to prevent the pin head from being pulled through the fibreboard. The procedure is applicable to fibreboard used in the seat of footwear with inside attached heels, and also to seat components where outside heel attachments are used and the heel pin is clenched. The method may also be applied
14、 to plastics shoe backparts. NOTEThe title of the publication referred to in this standard is given on the inside back cover. 2 Principle The force required to push a simulated heel pin head through the fibreboard is measured both for the dry and the wet fibreboard. 3 Apparatus 1) 3.1 Conditioning c
15、abinet or room, maintaining an atmosphere of 20 2 C and 65 2 % r.h. 3.2 Drill, fitted with twist drill bit of nominal diameter 2.05 mm, actual diameter between 2.040 mm and 2.065 mm inclusive. 3.3 Tensile testing machine, with a range of 0 kN to 2 kN (0 kgf to 200 kgf) and a jaw separation rate of 1
16、00 20 mm/min. 3.4 Attachment for the tensile testing machine, consisting of the following two essential parts. a) Rigid supporting plate for the test specimen, with a 12 1 mm diameter circular hole and a means of attachment to the upper clamp of the machine, so that the line of action of the force a
17、pplied during testing passes through the centre of the hole and is perpendicular to the plate. b) Fitting, providing a means of pushing a rod through the test specimen; the leading part of the rod consists of a 2.0 0.1 mm diameter shank, and the remainder a head of 4.06 0.05 mm diameter. The two sec
18、tions join at a shoulder in the form of a plane perpendicular to the axis of the rod. (These dimensions correspond to those of a 8 14 gauge heel pin.) The attachment is designed to ensure that the axis of the rod passes through the centre of the hole in the test specimen supporting plate. In order f
19、or the tensile testing machine to produce the compression forces, the above two parts of the attachment may conveniently be combined in the form of a compression cage, as illustrated in Figure 1. The rigid supporting plate (A) for the test specimen is suspended from the top clamp of the tensile test
20、ing machine. The fitting (B) is supported by the lower clamp so that the rod (C) (representing the gauge heel pin) is above the supporting plate for the test specimen, and the axis of the rod (C) passes through the centre of the circular hole (D). 3.5 Dial micrometer gauge, standing on a firm base a
21、nd dead-weight loaded such that the presser foot applies a pressure of 49 5 kPa (5.0 0.5 gf/mm2). The gauge has a presser foot which is flat, circular, and 10.0 mm in diameter. The gauge meets the accuracy requirements of BS 907 and has scale divisions of 0.01 mm. 4 Conditioning Place the fibreboard
22、 in the conditioning cabinet or room (3.1). After 48 h, cut the test specimens (see clause 5 for dimensions). 5 Preparation of test specimens Cut from the fibreboard two rectangular test specimens each approximately 80 mm by 20 mm, one test specimen for dry testing (see 6.1) and the other for wet te
23、sting (see 6.2). 6 Procedure 6.1 Dry testing 6.1.1 Carry out the dry test in the conditioning atmosphere. 6.1.2 Measure the thickness of the first test specimen, using the dial micrometer gauge (3.5), at three points on the centreline parallel to the 80 mm side, at distances of 20 mm, 40 mm and 60 m
24、m from one end. 6.1.3 Using the 2.05 mm diameter drill bit (3.2), make three holes along the centreline of the test specimen parallel to the 80 mm side, at distances not less than 20 mm apart and not less than 10 mm from any edge. 1) For information on the availability of suitable apparatus to perfo
25、rm this test apply to Enquiry Section, BSI, Linford Wood, Milton Keynes, MK14 6LE, quoting the number of this standard and the clause number referring to the item(s) concerned. Enclose a stamped addressed envelope for reply. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2
26、006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 2 BSI 10-1999 6.1.4 Fit the attachment (3.4) to the tensile testing machine (3.3). Place the test specimen on its supporting plate so that the hole drilled in it is concentric with the hole in this plate. Lower the rod fitted to the drive system by op
27、erating the tensile testing machine until the leading part of the rod is inside the hole of the test specimen. Then operate the machine at a jaw separation rate of 100 20 mm/min, continuously observing the force, until the head of the rod has been pushed through the test specimen. Note the maximum f
28、orce exerted. If the weight of the test attachment contributes to the recorded force, correct this value to obtain the net force exerted on the test specimen. 6.1.5 Repeat the procedure described in 6.1.4 using each of the other two holes in the test specimen. 6.2 Wet testing NOTEIt is not necessary
29、 to carry out the wet test in the conditioning atmosphere. 6.2.1 Using the procedure described in 6.1.2 measure the thickness of the second test specimen. Soak the test specimen in distilled or deionized water at 20 2 C for 6 h. Remove it from the water and blot the surface. Immediately after soakin
30、g, using the 2.05 mm diameter drill bit, make three holes along the centre parallel to the 80 mm side at distances of not less than 20 mm apart and not less than 10 mm from any edge. 6.2.2 Without delay, carry out the procedure described in 6.1.4 and 6.1.5. NOTEThe arrows indicate the directions of
31、travel to cause compression. Figure 1 Compression cage, combining the two parts of the attachment for the tensile testing machine Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 BSI 10-19993 7 Expression of results 7.1 For e
32、ach test specimen, calculate the mean of the three maximum forces noted. Report these two values as the heel pin holding strength of the dry and the wet board respectively. 7.2 For each test specimen, calculate the mean value of the three thickness measurements. 8 Test report The test report shall i
33、nclude the following items: a) results, for the wet and the dry board, expressed in accordance with 7.1; b) thickness of the board, expressed in accordance with 7.2; c) nature and full identification of the sample; d) reference to this method of test, i.e. BS 5131-4.4; e) date of testing. Licensed C
34、opy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4:1990 BSI 10-1999 Publication referred to BS 907, Specification for dial gaug
35、es for linear measurement. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5131-4.4: 1990 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British St
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44、rpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 14:08:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI