1、BRITISH STANDARD BS 5051-1: 1988 Bullet-resistant glazing Part 1: Specification for glazing for interior use UDC 691.6:666.155:.004.15+.001.4BS5051-1:1988 This British Standard, having been prepared under the direction of the Elements and Components (of Diverse Materials) for Buildings Standards Com
2、mittee, was published under the authority of the Board of BSI and comes into effect on 30November 1988 BSI 01-1999 First published October 1973 First revision November 1988 The following BSI references relate to the work on this standard: Committee reference ECB/4 Draft for comment 85/13903 DC ISBN
3、0 580 16528 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Elements and Components (of Diverse Materials) for Buildings Standards Committee (ECB/-) to Technical Committee ECB/4, upon which the following bodies were represented: Alumin
4、ium Window Association Architectural Aluminium Association British Adhesives and Sealants Association British Plastics Federation British Woodworking Federation Chief and Assistant Chief Fire Officers Association Child Accident Prevention Trust Consumer Policy Committee of BSI Department of the Envi
5、ronment (Property Services Agency) Department of the Environment (Building Research Establishment) Department of the Environment (Housing and Construction Industries) Department of Trade and Industry (Consumer Safety Unit, CA Division) Flat Glass Manufacturers Association Glass and Glazing Federatio
6、n Health and Safety Executive Incorporated Association of Architects and Surveyors Institution of Civil Engineers Institution of Fire Engineers Metal Window Federation Limited National Association of Shopfitters National House-building Council Patent Glazing Conference Royal Institute of British Arc
7、hitects Royal Institution of Chartered Surveyors Royal Society for the Prevention of Accidents Steel Window Association Union of Construction, Allied Trades and Technicians The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association for P
8、ayment Clearing Services Association of British Insurers Association of Burglary Insurance Surveyors Banking Insurance and Finance Union British Security Industry Association Business Equipment and Information Technology Association City of London Police Home Office Metropolitan Police Ministry of D
9、efence Plastics and Rubber Institute Post Office Society of Glass Technology Society of Motor Manufacturers and Traders Limited Amendments issued since publication Amd. No. Date of issue CommentsBS5051-1:1988 BSI 01-1999 i Contents Page Committees responsible Inside front cover Foreword ii 0 Introdu
10、ction 1 1 Scope 1 2 Definitions 1 3 Classification of panels 2 4 Panel test pieces for type testing 2 5 Performance 2 6 Marking 3 Appendix A External weathering procedure for panel test pieces 4 Appendix B Procedure for type testing for performance requirements 5 Appendix C Installation of bullet-re
11、sistant glazing 5 Figure 1 Limit of shelter from obstructions in an easterly, southerly or westerly direction 4 Table 1 Conditions of test for panels 6 Publications referred to Inside back coverBS5051-1:1988 ii BSI 01-1999 Foreword This revision of BS5051-1 was prepared under the direction of the El
12、ements and Components (of Diverse Materials) for Buildings Standards Committee. It supersedes BS5051-1:1973 which is withdrawn. The title has been changed to distinguish bullet-resistant glazing from other kinds of security glazing, such as anti-bandit glazing resistant to manual attack (covered by
13、BS5544:1978). Major changes include the introduction of a new category of glazing designed to protect against attack by a5.56mm calibre rifle, reclassification of the old G3 grade as R2 (designed to protect against attack by a7.62mm calibre rifle), and the introduction of a revised test for glazing
14、resistant to shotgun attack. Other changes include the deletion of imperial equivalent dimensions, the omission of barrel length requirements for test weapons, and the deletion of the old Appendix C (which gave details of specific systems of bullet velocity measurement). General information on veloc
15、ity detection methods now appears in the notes toTable 1, and adjustments have been made to the tolerances on striking velocities. Background information in the foreword of the last edition has been transferred to an introduction (see clause0). Requirements for through-vision and light transmission
16、have been removed from the specification. The committee considered it inadvisable to draw up detailed specifications for each type of bullet-resistant glazing known to be satisfactory because: a) these could not replace performance tests, and b) the subject continues to be in an active stage of deve
17、lopment and it would be extremely difficult to keep such specifications comprehensive and up-to-date by including the new or improved materials that are becoming available or will do so in future. Correct installation of bullet-resistant glazing is considered to be vital to its effectiveness. Attent
18、ion is therefore drawn to BS5357 which covers installation of security glazing, and toAppendix C of this standard, which details some essential installation requirements. This British Standard calls for the use of procedures that may cause injury if adequate precautions are not taken. It refers only
19、 to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. 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 w
20、ith 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, pages1 to6, an inside back cover and a back cover. This standard has been updated (seecopyright date) and may have had amen
21、dments incorporated. This will be indicated in the amendment table on theinside front cover.BS5051-1:1988 BSI 01-1999 1 0 Introduction 0.1 Designation system In considering the various types of potential attack against which bullet-resistant glazing may be required to provide protection, it has been
22、 found convenient to define six categories of glazing, to be designated by code letters and numbers (see clause3). 0.2 General requirements The first requirement for bullet-resistant glazing is that it will provide protection by preventing the passage of projectiles from various types of weapon. The
23、 second requirement is that it will protect personnel against injury from splinters of glass which may be ejected from the rear surface when the glazing is attacked. Because of the need to comply with this second requirement, the glazing may be either a unitary type or a duplex type in which a prima
24、ry screen stops the bullet and a thin, secondary screen stops flying splinters. In a duplex installation the secondary screen is permanently fixed, for example, by hanging on chains from the ceiling, and is not necessarily attached directly to the main screen. 0.3 Service life Some types of bullet-r
25、esistant laminated glass have been in use for many years and are known to maintain their resistance to attack over this period of time. However, new types of assembly are being developed and a safeguard against possibly inadequate service life has therefore been included. The lack of an agreed accel
26、erated exposure test for plastics materials and their adhesion to glass was one of the most difficult problems. A period of exposure to external weathering prior to the type tests has therefore been specified (six months) in the belief that this will exclude any assemblies which would have inadequat
27、e service life. NOTEScratches on any bullet-resistant glazing may lessen its resistance to attack. So may undue abrasion, unsatisfactory methods of cleaning or excessive exposure to ultraviolet light. 0.4 Fixing Bullet-resistant glazing may be fitted in a wide variety of internal windows, counter sc
28、reens, partitions, etc., and it has not been considered possible to include a detailed specification for the fixing of the glass. Nevertheless, it should be recognized that the protection provided by bullet-resistant glazing depends just as much upon the design, fixing and maintenance of the window,
29、 counter screen or partition as it does upon the glazing itself. BS5357 makes detailed recommendations for the installation of security glazing, and some of the essential points are given inAppendix C. 1 Scope 1.1 This Part of BS5051 specifies performance requirements and type test methods for six c
30、lasses of bullet-resistant glazing for interior use, designed to resist attack by handguns, rifles and shotguns. It covers glazing for use at temperatures between10C and30C. NOTEGlazing resistant to manual attack (anti-bandit glazing) is covered in BS5544. However, glazing complying with this Part o
31、f BS5051 may also be highly resistant to many forms of manual attack. 1.2 This Part of BS5051 does not include requirements for freedom from visible defects or for light transmission. It does not specify requirements for the retention of bullet-resistant qualities over a stated period (but see0.3).
32、NOTE 1Under conditions where bullet-resistant glass may be subjected to abrasion, unsatisfactory methods of cleaning or excessive ultraviolet light, bullet resistant qualities may be impaired. Additional requirements should therefore be agreed between the purchaser and the vendor. NOTE 2Panels of bu
33、llet-resistant glass much smaller than the test piece specified (see4.1) may provide less protection in service than would be indicated by the performance of the test piece. Additional requirements should therefore be agreed between the purchaser and the vendor. NOTE 3The titles of the publications
34、referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS5051 the following definitions apply. 2.1 bullet-resistant glazing a glazing material that affords protection to personnel and property by preventing the passage of projectiles from the
35、 range of weapons described inTable 1 NOTEThe term “bullet-resistant glazing” as used in this Part of BS5051 applies to products that have the obvious characteristics of a conventional glass, but it is understood to include also such products as: a) rigid plastics; b) laminates of glass with one or
36、more plastics interlayers; c) laminates of glass incorporating high tensile steel wire mesh in a plastics interlayer; d) glass and/or plastics bonded with one or more plastics interlayers; e) any combinations of the above. 2.2 panel a complete bullet-resistant glazing unit, e.g. in the case of a dup
37、lex unit the panel comprises both the primary and the secondary screensBS5051-1:1988 2 BSI 01-1999 2.3 unitary bullet-resistant panel a panel consisting of a single screen of bullet-resistant glazing as defined in2.1 which is capable of resisting the specified level of attack in accordance with5.2 N
38、OTEThe glass or plastics components of a unitary bullet-resistant panel may be separated by air spaces. 2.4 duplex bullet-resistant panel a unit formed by a primary screen in permanent association with a supplementary anti-splinter screen (the secondary screen) on the side remote from the direction
39、of attack, the unit being capable of resisting the specified level of attack in accordance with5.2 2.5 primary screen a component of a duplex bullet-resistant panel consisting of a single screen of security glazing on the side nearest to the direction of attack and of such properties that it will no
40、t allow the passage of the projectile or projectiles used in the specified level of attack but may during attack suffer ejection of splinters of glass from the side remote from the attack NOTEThe glass or plastics components of a primary screen may be separated by air spaces. 2.6 secondary screen an
41、 installed supplementary screen of a duplex bullet-resistant panel used with the primary screen and on the side remote from the direction of attack. Its function is to withstand the impact of any splinters detached from the primary screen by the attack without itself suffering the detachment of spli
42、nters from the face remote from the primary screen 2.7 public side the side of a bullet-resistant glazing that is designed to face the attack 2.8 level of attack the designated ballistic impact directed against bullet-resistant glazing 2.9 traceability number a coded number, assigned by the manufact
43、urer, that identifies the class, batch and date of manufacture of the bullet-resistant glazing 3 Classification of panels 3.1 Bullet-resistant glass shall be classified as follows. NOTE 1Table 1 gives details of the weapons, ammunition and conditions that produce these levels of attack. NOTE 2The cl
44、asses of glazing resistant to hand gun and rifle attack (G and R) are here classified in order of the level of protection offered, e.g. a panel complying with the requirements specified for class R1 will also comply with those specified for the preceding classes G2, G1 and G0. However, a panel of cl
45、ass S86 may or may not comply with the requirements of one or more of the G and R classes, and compliance should be separately verified. 3.2 A panel that complies with the requirements of class S86 and one or more of the G and R classes shall be classified with a dual classification, e.g.S86/G2. 4 P
46、anel test pieces for type testing 4.1 Test pieces from unitary and duplex panels submitted for type testing shall be420 5mm square. They shall be prepared from the same materials as, and processed under identical conditions to, the product which they represent. 4.2 Test pieces from the primary and s
47、econdary screens of a duplex panel shall be submitted for type testing at the same time, together with a means of locating the secondary screen test pieces in correct relation to the primary screen test pieces. 4.3 Three panel test pieces shall be submitted for the type tests. NOTE 1In view of the s
48、ix month weathering period, and the possibility of accidental damage or “no-test” situations, it is advisable for the manufacturer to provide additional test pieces. NOTE 2If glazing is to be tested for verification of compliance with more than one class, an additional set of three panel test pieces
49、 will be required for each classification. 5 Performance 5.1 The three panel test pieces shall comply with5.2 after external weathering in accordance with Appendix A. Class G0 resistant to attack by a 9mm parabellum hand gun. Class G1 resistant to attack by a 357magnum hand gun. Class G2 resistant to attack by a 44magnum hand gun. Class R1 resistant to attack by a5.56mm rifle. Class R2 resistant to attack by a7.62mm rifle. Class S86 resistant to attack by a12bore shot gun.BS5051-1:1988 BSI 01-1999 3 5.2 When tested in accordance withAppendix B, under the conditions spec
