1、BSI Standards PublicationBS ISO 3537:2015Road vehicles Safety glazingmaterials Mechanical testsBS ISO 3537:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 3537:2015. The UK participation in its preparation was entrusted to TechnicalCommittee AUE/1, Vehicle
2、 lighting and signalling.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 201
3、5.Published by BSI Standards Limited 2015ISBN 978 0 580 81182 1 ICS 43.040.65; 81.040.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2015.Amendments
4、/corrigenda issued since publicationDate T e x t a f f e c t e d ISO 2015Road vehicles Safety glazing materials Mechanical testsVhicules routiers Vitrages de scurit Essais mcaniquesINTERNATIONAL STANDARDISO 3537Fourth edition 2015-04-15Reference number ISO 3537:2015(E)BS ISO 3537:2015ISO 3537:2015(E
5、)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an in
6、tranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublish
7、ed in SwitzerlandBS ISO 3537:2015ISO 3537:2015(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Test conditions . 15 Application of tests. 16 227 g ball test . 16.1 Principle 16.2 Apparatus 16.3 Test piece . 36.4 Procedure 36.5 Expression of results 37 2 260 g ball test 3
8、7.1 Principle 37.2 Apparatus 47.3 Test piece . 47.4 Procedure 47.5 Expression of results 48 Abrasion resistance test . 48.1 Principle 48.2 Apparatus 48.3 Test pieces . 78.4 Standardization of abrading wheels . 78.5 Procedure 88.6 Expression of results . 109 Fragmentation test 109.1 Principle . 109.2
9、 Apparatus . 119.3 Procedure . 119.4 Expression of results . 1210 Head-form test .1310.1 Principle . 1310.2 Apparatus . 1310.3 Procedure . 1510.3.1 Tests on flat test piece 1510.3.2 Tests on complete windscreen 1510.4 Expression of results .16Annex A (informative) Vacuum pick-up nozzle modification
10、17Annex B (informative) Calibration verification of Taber abraser .18 ISO 2015 All rights reserved iiiContents PageBS ISO 3537:2015ISO 3537:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
11、preparing International Standards is normally carried out through ISO technical committees. 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,
12、 in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/
13、IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibilit
14、y that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of pate
15、nt declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as infor
16、mation about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 35, Lighting and visibility.This fourth edition cancels and r
17、eplaces the third edition (ISO 3537:1999), which has been technically revised.iv ISO 2015 All rights reservedBS ISO 3537:2015Road vehicles Safety glazing materials Mechanical tests1 ScopeThis International Standard specifies mechanical test methods relating to the safety requirements for all safety
18、glazing materials in a road vehicle, whatever the type of glass or other material of which they are composed.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the editi
19、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)ISO 3536, Road vehicles Safety glazing materials VocabularyISO 15082
20、, Road vehicles Tests for rigid plastic safety glazing materials3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 3536 apply.4 Test conditionsUnless otherwise specified, the tests shall be carried out under the following conditions: Ambient temperature:
21、 20 C 5 C; Atmospheric pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar); Relative humidity: (60 20) %.5 Application of testsFor certain types of safety glazing materials, it is not necessary to carry out all the tests specified in this International Standard.6 227 g ball testRigid plastic safety
22、 glazing materials can alternatively be tested in accordance with ISO 15082.6.1 PrincipleDetermination of whether the safety glazing material has a certain minimum strength and cohesion under impact from a small hard object.6.2 Apparatus6.2.1 Hardness steel ball, with a mass of 227 g 2 g and a diame
23、ter of approximately 38 mm.INTERNATIONAL STANDARD ISO 3537:2015(E) ISO 2015 All rights reserved 1BS ISO 3537:2015ISO 3537:2015(E)6.2.2 Means for dropping the ball freely from a height to be specified, or means for giving the ball a velocity equivalent to that obtained by the free fall.When a device
24、to project the ball is used, the tolerance on velocity shall be 1 % of the velocity equivalent to that obtained by the free fall.6.2.3 Supporting fixture, such as that shown in Figure 1, composed of two steel frames, with machined borders, 15 mm wide, fitting one over the other and faced with rubber
25、 gaskets about 3 mm thick and 15 mm wide, of hardness 50 IRHD, determined in accordance with ISO 48.The lower frame rests on a steel box, about 150 mm high. The test piece is held in place by the upper frame, the mass of which is about 3 kg. The supporting frame is welded on a sheet of steel about 1
26、2 mm thick, resting on the floor, with an interposed sheet of rubber, about 3 mm thick, of hardness 50 IRHD.Dimensions in millimetresKey1 test piece2 rubber gasket3 sheet of rubberFigure 1 Support for ball tests2 ISO 2015 All rights reservedBS ISO 3537:2015ISO 3537:2015(E)6.3 Test pieceThe test piec
27、e shall be a flat square with 300 mm 010+mm sides or shall be cut out from the flattest part of a windscreen or other curved safety glazing material.Alternatively, the whole windscreen or other finished safety glazing products can be tested, using the supporting fixture according to 6.2.3. In the ca
28、se of curved test pieces, care shall be taken to ensure adequate contact between the safety glazing material and the support.6.4 ProcedureTemperature of test pieces: Ambient temperature.The 227 g ball test can alternatively be carried out on test pieces at 20 C 2 C or +40 C 2 C if specified.Conditio
29、n the test piece at the specified temperature for at least 4 h immediately preceding the test. If the specified test temperature is 20 C or + 40 C, the periods according to Table 1 between the removal of the test pieces from tempering and the release of the ball shall not be exceeded.Table 1 Period
30、between the removal of the test piece from the temperature control unit and the release of the ballTest piece thickness, e mmMaximum interim period at test temperature 20 CMaximum interim period at test temperature + 40 C2,5 e 4,5 0 min 40 s 2 min 0 s4,5 8,5 1 min 40 s 2 min 0 sIf the test piece is
31、less than 2,5 mm thick, then the test shall be carried out immediately at the given temperature.Place the test piece in the fixture (6.2.3). The plane of the test piece shall be perpendicular, within 3, to the incident direction of the ball. When necessary to retain the test piece in the fixture, it
32、 shall be clamped to ensure that the movement of the test piece during test shall not exceed 2 mm at any point along the inside periphery of the fixture.The point of impact shall be within 25 mm of the geometric centre of the test piece for a drop height less than or equal to 6 m, and within 50 mm o
33、f the centre of the test piece for a drop height greater than 6 m.The ball shall strike the face of the test piece which represents the outside face of the safety glazing material when mounted on the vehicle. The ball shall be allowed to make only one impact.6.5 Expression of resultsAssess the type
34、and extent of damage to the test piece. If fragments are detached from the test piece, the total mass of the fragments and the mass of the largest fragment, detached from the side remote from impact, shall be weighed to the nearest 0,1 g. Report the drop height and temperature for each test piece an
35、d whether the test piece supported or did not support the 227 g ball.7 2 260 g ball testRigid plastic safety glazing materials may alternatively be tested in accordance with ISO 15082.7.1 PrincipleEvaluation of the penetration resistance of the safety glazing material. ISO 2015 All rights reserved 3
36、BS ISO 3537:2015ISO 3537:2015(E)7.2 Apparatus7.2.1 Hardened steel ball, with a mass of 2 260 g 20 g and a diameter of approximately 82 mm.7.2.2 Means for dropping the ball freely from a height to be specified, or means for giving the ball a velocity equivalent to that obtained by the free fall.When
37、a device to project the ball is used, the tolerance on velocity shall be 1 % of the velocity equivalent to that obtained by the free fall.7.2.3 Supporting fixture, as described in 6.2.3.7.3 Test pieceThe test piece shall be a flat square with 300010+mm sides or shall be cut out from the flattest par
38、t of a windscreen or other curved safety glazing material.Alternatively, the whole windscreen or other finished safety glazing products can be tested, using the supporting fixture according to 6.2.3. In the case of curved test pieces, care shall be taken to ensure adequate contact between the safety
39、 glazing material and the support.7.4 ProcedureCondition the test piece at the specified temperature for at least 4 h immediately preceding the test.Place the test piece in the fixture (6.2.3). The plane of the test piece shall be perpendicular, within 3, to the incident direction of the ball. When
40、necessary to retain the test piece in the fixture, the test piece in the fixture shall be clamped to ensure that the movement of the test piece during test shall not exceed 2 mm at any point along the inside periphery of the fixture.The point of impact shall be within 25 mm of the geometric centre o
41、f the test piece. The ball shall strike the face of the test piece which represents the internal face of the safety glazing material when mounted on the vehicle. The ball shall be allowed to make only one impact.7.5 Expression of resultsIf the ball passes completely through the test piece within 5 s
42、 after the impact, the result shall be recorded as a “penetration”. If the ball remains on top of the test piece, or wedged in a hole, for 5 s or more, the result shall be recorded as a “support”. Report the drop height and temperature for each test piece.8 Abrasion resistance testTest rigid plastic
43、 safety glazing materials in accordance with ISO 15082.8.1 PrincipleDetermination of whether the safety glazing material has a certain minimum resistance to abrasion at ambient temperature.8.2 Apparatus8.2.1 Abrading instrument1), shown diagrammatically in Figure 2, and consisting of the following:1
44、) A suitable abrading instrument is supplied by Taber Industries (USA). This information is given for the convenience of users of this International Standard and does not constitute an endorsement by ISO of the product named. Equivalent products can be used if they can be shown to lead to the same r
45、esults.4 ISO 2015 All rights reservedBS ISO 3537:2015ISO 3537:2015(E) A horizontal turntable and centre clamp which revolves counter-clockwise at a fixed speed of 60 r/min 2 r/min or 72 r/min 2 r/min. Two weighted parallel arms, each carrying a special abrasive wheel freely rotating on a ball bearin
46、g horizontal spindle; each wheel rests on the test piece under the pressure exerted by a mass of 500 g, unless otherwise specified. A vacuum suction system (not depicted in Figure 2) and vacuum pick-up nozzle to remove debris and abrasive particles from the test piece surface during testing. The hei
47、ght of the vacuum pick-up nozzle shall be adjustable, and the nozzle openings shall have a diameter of 11 mm.In the case of a nominal nozzle opening equal to 8 mm, the nozzle openings shall be enlarged to 11 mm following the instructions shown in Annex A, or by installation of a replacement nozzle w
48、ith 11 mm openings.The turntable of the abrading instrument shall rotate regularly, substantially in one plane (the deviation from this plane shall not be greater than 0,05 mm at a distance of 1,6 mm from the turntable periphery).The wheels shall be mounted in such a way that when they are in contac
49、t with the rotating test piece, they rotate in contrary directions so as to exert a compressive and abrasive action along curved lines over an annular area of about 30 cm2, twice during each rotation of the test piece.Verify calibration of the abrading instrument as directed by the equipment manufacturer. For one Taber abraser, see Annex B.Figure 2 Diagram of abrading instrument8.2.2 Abrasive wheels2)having a cylindrical shape and composed of a resilient binder and abrasive particles
