1、BRITISH STANDARD BS ISO 5473:1997 Rubber- or plastics-coated fabrics Determination of crush resistance ICS 59.080.40BSISO5473:1997 This British Standard, having been prepared under the directionof the Sector Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand
2、comes into effect on 15June1997 BSI 09-1999 ISBN 0 580 27764 X National foreword This British Standard has been prepared by Technical Committee TCI/78, Coated fabrics. It is identical with ISO5473:1997 Rubber- or plastics-coated fabrics Determination of crush resistance published by the Internationa
3、l Organization for Standardization (ISO). A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Ca
4、talogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their c
5、orrect application. Compliance with 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, theISO title page, pages ii to iv, pages1 to3 and a back cover. This standard has been upda
6、ted (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO5473:1997 BSI 09-1999 i Contents Page National foreword Inside front cover Foreword iii Text of I
7、SO5473 1ii blankBSISO5473:1997 ii BSI 09-1999 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Principle 1 4 Apparatus 1 5 Test pieces 2 6 Time-interval between manufacturing and testing 2 7 Conditioning and test atmosphere 2 8 Procedure 2 9 Test report 3 Figure 1 Base plate 1 Figure
8、2 Load button assembly 2BSISO5473:1997 BSI 09-1999 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees.
9、 Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Interna
10、tional Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75 % of the member bodi
11、es casting a vote. International Standard ISO5473 was prepared by Technical Committee ISO/TC45, Rubber and rubber products. This second edition cancels and replaces the first edition (ISO5473:1979), which has been technically revised. Descriptors: Fabrics, woven fabrics, coated fabrics, fabrics coat
12、ed with rubber, fabrics coated with plastics, tests, crushing tests, compression tests, determination, crushing strength.iv blankBSISO5473:1997 BSI 09-1999 1 WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to addres
13、s all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard specifies a method for determining the crush
14、resistance of fabrics coated with rubber or plastics. The method is applicable particularly to diaphragm material cut from coated fabrics. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At
15、 the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and I
16、SO maintain registers of currently valid International Standards. ISO 2231:1989, Rubber- or plastics-coated fabrics Standard atmospheres for conditioning and testing. ISO 2286-1:, Rubber- or plastics-coated fabrics Determination of roll characteristics Part1:Method for determination of the length, w
17、idth and net mass of a roll 1) . 3 Principle The coated fabric is subjected to a controlled load application over a known area until the fabric is crushed. 4 Apparatus 4.1 Base plate, having the dimensions shown in Figure 1. 4.2 Load button assembly, having the dimensions shown in Figure 2. 4.3 Comp
18、ression-testing machine, having a speed of approximately0,08mm/s. Any type of machine that will meet this requirement may also be used. For example, a platform scale equipped with a yoke over the platform and a hand-operated screw to apply the force will serve if it conforms to the requirements pres
19、cribed for accuracy and speed. The load source shall have a total capacity of at least5400N. 1) To be published. (Revision, in parts, of ISO2286:1986) Figure 1 Base plateBSISO5473:1997 2 BSI 09-1999 4.4 Force-recording mechanism, comprising a calibrated dial with a maximum pointer, or a strip-chart
20、to indicate the force required to crush the fabric. Unless otherwise specified for force determination, the machine shall be so adjusted that the maximum force required to crush the test piece may be readily detected by the maximum pointer or read from the strip-chart. The error of the machine shall
21、 not exceed2% up to and including200N force and1%over200N force. 5 Test pieces Cut the test pieces from the usable width of the roll as defined in ISO2286-1. The test pieces shall be at least50mm wide and200mm long. At least three test values shall be obtained from each sample. 6 Time-interval betwe
22、en manufacturing and testing 6.1 For all purposes, the minimum time between manufacturing and testing shall be16h. 6.2 When the test is for comparison of materials, it is strongly recommended that these periods be as close to each other as possible. 6.3 For product tests, the time between manufactur
23、ing and testing should, whenever possible, not exceed 3months. In other cases, tests shall be made within2months of the date of receipt by the customer. 7 Conditioning and test atmosphere The test pieces shall be conditioned and tested in one of the atmospheres A, B and C defined in ISO2231. 8 Proce
24、dure 8.1 Place the base plate (4.1) on the platform of the testing machine (4.3) and place the test piece on the base plate. If the material to be tested has an unbalanced coating, the side having the thicker coating shall be facing upward. NOTE 1All sharp edges to be removed. NOTE 2Button to be pre
25、ss-fitted in plate. Figure 2 Load button assemblyBSISO5473:1997 BSI 09-1999 3 8.2 Place the load button of the machine on to the test piece so that the recess of the button, as shown in Figure 2, is in contact with the test piece and its axis is perpendicular to the plane of the test piece. The circ
26、umference of the load button shall be at least12mm from any edge of the test piece. Apply the force to the button at the rate of approximately0,08mm/s until the shear yield point or maximum deflection of the dial pointer is reached, whichever is the lesser. Record the force required to crush the tes
27、t piece. Repeat the procedure at least twice more on a new area of the test piece at least12mm away from other test sites and from any edge. 8.3 Fabric crushing can readily be detected by stretching the test piece. The fabric will have noticeably less resistance to stretching in the damaged areas wh
28、en compared with the undamaged areas. 9 Test report The test report shall include the following particulars: a) a reference to this International Standard; b) the reference and date of manufacture, if known, of each sample tested; c) the atmosphere used for conditioning and testing; d) the number of
29、 test pieces tested; e) the force required to crush the coating or the fabric, whichever occurs first, in each test piece.BS ISO 5473:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It prese
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