1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21566-8 SANS 1193:2008Edition 2SOUTH AFRICAN NATIONAL STANDARD Toughened safety glass for vehicles Published by Standards South Africa 1 1
4、 dr lategan road groenkloof private bag x191 pretoria 000x: 012 344 1568 international code +27 12 tel: 012 428 7911 fawww.stansa.co.za Standards South Africa SANS 1193:2008 Edition 2 Table of changes Change No. Date Scope Acknowledgement Standards South Africa wishes to acknowledge the valuable ass
5、istance derived from publications of the following organizations: a) the American National Standards Institute, Incorporated; b) the British Standards Institution; and c) the Standards Association of Australia. Foreword This South African standard was approved by National Committee StanSA TC 5120.71
6、, Lighting and optics for traffic and transport, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published in June 2008. This document supersedes SANS 1193:2005 (edition 1.3). SANS 1193:2008 Edition 2 1 Contents Page Ack
7、nowledgement Foreword 1 Scope . 3 2 Normative references. 3 3 Terms and definitions. 3 4 Requirements. 3 5 Marking. 4 6 Sampling and compliance with the specification 4 7 Fragmentation test . 4 SANS 1193:2008 Edition 2 2 This page is intentionally left blank SANS 1193:2008 Edition 2 3 Toughened safe
8、ty glass for vehicles 1 Scope This standard covers toughened safety glass for use in vehicles. 2 Normative references The following referenced document is indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edit
9、ion of the referenced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from Standards South Africa. SANS 1191:2005, High penetration-resistant laminated safety glass for vehicles. 3 Terms and definitions For the purposes
10、 of this document, the relevant terms and definitions given in SANS 1191 and the following apply. 3.1 elongated particle particle of which the length exceeds four times the width 3.2 toughened safety glass single layer of glass that has been subjected to special treatment to increase its mechanical
11、strength and to condition fragmentation when broken 4 Requirements 4.1 Optical requirements 4.1.1 General The requirements in 3.1.1 of SANS 1191:2005 shall apply. 4.1.2 Luminous transmittance When safety glass is tested in accordance with 6.3 of SANS 1191:2005, its direct luminous transmittance (exc
12、luding that of shade bands, obscuration bands, and glass for special applications) shall be not less than 70 % for glass used for the primary field of vision of the driver and not less than 35 % for glass not used for the primary field of vision of the driver. SANS 1193:2008 Edition 2 4 In the case
13、of thick glass such as for armoured vehicles, the direct luminous transmittance shall be not less than 60 %. Shade bands on windscreens shall not extend into the principal field of vision of the driver. 4.2 Physical requirements When glass other than windscreens is tested for fragmentation in accord
14、ance with clause 7, there shall be a) not less than 40 elongated particles in area A (see figure 1), and b) either 1) not less than 60 elongated particles in area B (see figure 1), or 2) not less than 40 elongated particles in area B and not less than 240 elongated particles in area C (see figure 1)
15、. 5 Marking Each toughened safety glass product shall be distinctly and durably marked with the following information: a) the manufacturers name or registered trade name or registered trademark or any combination of these; and b) the word “Toughened“ or “Tempered“. 6 Sampling and compliance with the
16、 specification The requirements in clause 5 of SANS 1191 shall apply. 7 Fragmentation test 7.1 Apparatus 7.1.1 Punch, that has a spherical tip of radius 0,2 mm 0,05 mm with which to cause fragmentation. 7.1.2 Photographic paper and light source, that are suitable for making a contact print of the fr
17、actured glass. 7.1.3 Polariscope, to determine the position of the zone. 7.2 Test specimen A safety glass product selected from the manufacturers production. 7.3 Points of impact In the case of glass other than windscreens, the points of impact are at the midpoint of the longest side of the glass an
18、d 13 mm from the edge. SANS 1193:2008 Edition 2 5 7.4 Areas of assessment The areas of assessment for glass other than windscreens (see figure 1) are as follows: a) Area A: A square of side 50 mm in the region of coarsest fragmentation in two segments S. The segments S of radius 75 mm are centred on
19、 the edge of the glass opposite to, and on either side of, the point of impact. b) Area B: A square of side 50 mm in the region of coarsest fragmentation excluding a segment of radius 75 mm centred on the point of impact and also excluding the two segments S. c) Area C: A square of side 100 mm in th
20、e region of coarsest fragmentation totally including area B and excluding a segment of radius 75 mm centred on the point of impact and also excluding the two segments S. If the squares of areas B and C encroach upon the periphery of the glass or any of the segments, the counts are made in rectangles
21、 of equivalent areas. 7.5 Procedure 7.5.1 Place a piece of photographic paper between the test specimen and an identical piece of glass. 7.5.2 Tape the two glasses together all round the edges by means of adhesive tape. 7.5.3 Break the test specimen by punching it with the punch at the prescribed po
22、int of impact. 7.5.4 Make a contact print of the fragmented test specimen beginning exposure within 10 s and terminating not more than 3 min after impact. 7.5.5 Take into consideration only the darkest lines on the contact print, representing the initial fragmentation. 7.5.6 Check the fragmentation for compliance with the relevant requirements of 4.2. Figure 1 Areas of assessment for glass other than windscreens Standards South Africa
