ISO 16936-2-2005 Glass in building - Forced-entry security glazing - Part 2 Test and classification by repetitive impact of a hammer and axe at room temperature.pdf

1、INTERNATIONAL STANDARD ISO 16936-2 First edition 2005-07-01 Reference number ISO 16936-2:2005(E) ISO 2005 Glass in building Forced-entry security glazing Part 2: Test and classification by repetitive impact of a hammer and axe at room temperature Verre dans la construction Vitrages de scurit contre

2、infractions Partie 2: Essai et classification par impact rpt dun marteau et dune hache temprature ambianteISO 16936-2:2005(E) ii ISO 2005 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed bu

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7、.org Web www.iso.org Published in SwitzerlandISO 16936-2:2005(E) ISO 2005 All rights reserved iii Contents Page 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbols (and abbreviated terms) 2 5 Sampling . 2 6 Apparatus . 3 7 Required characteristics . 8 8 Test method 8 9 Classificat

8、ion and designation . 12 10 Test report 12 11 Marking . 12 Bibliography . 13ISO 16936-2:2005(E) iv ISO 2005 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internat

9、ional 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, in liaison with I

10、SO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical c

11、ommittees is to prepare International Standards. 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 least 75 % of the member bodies casting a vote. Attention is drawn to th

12、e possibility 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. ISO 16936-2 was prepared by Technical Committee ISO/TC 160, Glass in building, Subcommittee SC 2, Use considerations. ISO 169

13、36 consists of the following parts, under the general title Glass in building Forced-entry security glazing: Part 1: Test and classification by repetitive ball drop Part 2: Test and classification by repetitive impact of a hammer and axe at room temperature Part 3: Test and classification by manual

14、attack Part 4: Test and classification by pendulum impact under thermally and fire stressed conditionsISO 16936-2:2005(E) ISO 2005 All rights reserved v Introduction This part of ISO 16936 assesses security-glazing products that are more familiarly known as “anti-vandal”, “anti-bandit” and “detentio

15、n” glazing products. Because there is no single test that will cover the wide range of resistances to attack, four separate test methods are provided to assess the forced entry resistant properties of security glazing. It is not intended that any particular test method be associated with the terms “

16、anti-vandal” or “anti-bandit”, since these terms can be only loosely defined and there is considerable overlap in their definition. It is important that security glazing products be installed in a frame which can give appropriate resistance to impact and which also provides a suitable support for th

17、e security-glazing product. It is important that cutouts and holes in security glazing products be avoided where possible, as these can affect the resistance of the product. The test method specified in this part of ISO 16936 does not reproduce the conditions of real human attack, but is intended to

18、 give a classification of comparative resistance of glazing vi INTERNATIONAL STANDARD ISO 16936-2:2005(E) ISO 2005 All rights reserved 1 Glass in building Forced-entry security glazing Part 2: Test and classification by repetitive impact of a hammer and axe at room temperature 1S c o p e This part o

19、f ISO 16936 specifies requirements and a mechanical test method for security glazing designed to resist actions of manual attack by delaying access of objects and/or persons to a protected space for a short period of time. This part of ISO 16936 classifies security glazing products into categories o

20、f resistance against repetitive impacts of a hammer and an axe. In this part of ISO 16936, the categories of resistance have not been assigned to special applications. Glazing classification should be specified on an individual basis for every application. This part of ISO 16936 deals with mechanica

21、l resistance to manual attack only. Other properties can also be important. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refere

22、nced document (including any amendments) applies. ISO 48:1994, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F , G, H, K, N, T) 3 Terms and definit

23、ions For the purposes of this document, the following terms and definitions apply. 3.1 action of force deliberate action on the part of a person made with the intention of creating a hole in the security glazing product, by the use of manually held implements or by the use of thrown objects 3.2 atta

24、ck face face of a test piece marked by the manufacturer and/or supplier that is designed to face the attack 3.3 category of resistance classification of the capability of a security glazing product to resist actions of forceISO 16936-2:2005(E) 2 ISO 2005 All rights reserved 3.4 protected space space

25、 protected against access by the completed installation 3.5 sample specified number of test pieces which together are representative of the security glazing product intended to comply with a particular category of resistance in this part of ISO 16936 3.6 security glazing composition specific constru

26、ction of a glazing product NOTE A product is deemed to be of the same or superior security glazing composition if individual plies are exchanged with others of a different colour, but without significant effect on the resistance to actions of force; and/or additional glazing products are installed o

27、n either face of the security glazing product, laminated to it or with an air space; and/or additional equipment such as alarm wires, heating wires, printing, or surface coatings (on part or all of the surface) are incorporated into the security glazing product, provided that this does not significa

28、ntly affect the resistance to actions of force. 3.7 security glazing product product based on glass with or without plastics with a single or multiple ply construction, where the individual plies are of uniform thickness over the whole area of the product NOTE A security-glazing product is usually t

29、ransparent or translucent, and provides a specific resistance to the actions of force. 3.8 test piece specified piece of security glazing product submitted to a specified test procedure 4 Symbols (and abbreviated terms) angle of impact, measured between the surface of the test piece and the handle;

30、see Figure 4 impact energy of the hammer or axe number of axe strikes radius of the blade of the axe head impact velocity of the hammer or axe length of slit in the security glazing product formed by the axe blade 5 Sampling The sample submitted for testing shall consist of three test pieces for eac

31、h category of which testing is required. To ensure against invalid test results because of errors during the test, it is advisable to submit at least one extra test piece. Each test piece shall be ( ) long ( ) wide. The edges shall be free from visible chips, cracks and flaws. Glass samples should b

32、e lightly arrissed for ease of handling. The surface to be impacted shall be marked on each test piece. Each test piece shall be stored vertically and self-supporting at ( ) , for at least immediately prior to the test. a i E i n 1 , n 2 r 1 v i x 1 1005m m 9005m m 18 3 C1 2 hISO 16936-2:2005(E) ISO

33、 2005 All rights reserved 3 6 Apparatus 6.1 General Figure 1 shows the general arrangement of the test piece and the mechanism for swinging the axe. A detailed specification of the component parts is given in 6.2 to 6.4. Key 1 release mechanism 2 axe head 3 handle 4 axis of rotation 5s l e e v e 6 t

34、ension spring 7 pneumatic clamp 8c l a m p i n g f r a m e 9 height adjustor 10 test piece Figure 1 General view of axe test apparatusISO 16936-2:2005(E) 4 ISO 2005 All rights reserved 6.2 Tool specifications 6.2.1 Axe head The axe head shall have the form and dimensions in accordance with Figure 2.

35、 The axe head shall have a mass of ( ) and shall be made from wrought, unalloyed steel with a chemical composition as shown in Table 1. Dimensions in millimetres Figure 2 Axe head Table 1 Chemical composition of axe head C Mn Si P S (P S) min. min. max. max. max. max. 0,6 0,6 0,5 0,03 0,03 0,05 2,0

36、0,1 kg +ISO 16936-2:2005(E) ISO 2005 All rights reserved 5 The blade of the axe head shall be hardened to a distance of at least from the edge. At the beginning of the test, the blade of the axe head shall have a “qualified sharpness” as follows: a blade wedge angle of ( ) ; a slightly convex flank;

37、 a blade radius, , of a hardness of 51 HRC to 56 HRC in accordance with ISO 6508-1. After every 10 impacts, the blade shall be re-sharpened. An axe should not be re-used for testing, if the axe head was reduced during sharpening to a blade radius less than , the hardness is no longer within 51 HRC t

38、o 56 HRC. 6.2.2 Hammer head The head of the hammer is designed to simulate the blunt edge of an axe head and is used in place of the axe head. The hammer head shall be made from a steel bar of cross section ( ) square, length ( ) and of mass ( ) . The head shall have a hardness of 46 HRC to 50 HRC i

39、n accordance with ISO 6508-1. The edge of the impact surface shall have a radius less than . When this radius is exceeded, it shall be re-sharpened before use. 6.3 Handle specification The axe head (see 6.2.1) and the hammer head (see 6.2.2) shall be fixed to a handle as shown in Figure 3. The top e

40、dge of the tool shall be flush with the end of the handle. The handle shall be made of high-density polyethylene with a density of ( ) and a modulus of ( ) . Dimensions in millimetres Figure 3 Handle for the tools 30 mm 35 1 r 1 232 0 10 mm; 222 mm 402m m 232 10 mm 2,0 0,1 kg 1mm 940 3 kg/m 3 400 20

41、 N/mm 2ISO 16936-2:2005(E) 6 ISO 2005 All rights reserved 6.4 Test piece support apparatus The test piece support apparatus shall be inherently rigid; have an unyielding connection to a solid base and/or a sturdy wall; ensure plane and parallel clamping of the test piece in a vertical position; be d

42、esigned in such a way that the test piece touches only the clamping frame during the test; ensure clamping of the test piece on all four edges with an edge cover of ; have the clamping frame covered on the contact area of the test piece with rubber strips wide andthick of hardness 40 IHRD to 60 IHRD

43、 according to method N of ISO 48:1994; ensure that the edges of the test piece are clamped with a uniform pressure of . 6.5 Mechanism for simulating a hand-held axe The mechanism for simulating the action of a hand-held axe shall be rigid in itself; have an unyielding connection to a solid base and/

44、or a sturdy wall; ensure that the angle, , of impact between the surface of the test piece and the handle is ( ) at the point of impact, see Figure 4; be designed in such a way that the mass of the components moving during each strike achieves the impact energy, , in accordance with Table 2. a . Fig

45、ure 4 Angle of impact 30 5mm 30 mm 4mm 140 20 kN/m 2 a i 25 2 E i a i = 25 2 ISO 16936-2:2005(E) ISO 2005 All rights reserved 7 The lower end of the handle shall be fixed over a length of ( ) in a rigid sleeve that is rigidly attached to the axis of rotation (see Figure 5). The method of fixing shal

46、l include the following. On the side of the handle opposite the direction of the strike, the handle shall be separated from the sleeve by a rubber strip ( ) wide by ( ) long by ( ) thick, of hardness 17 IRHD to 23 IRHD according to method L of ISO 48:1994. On the side of the handle towards the direc

47、tion of strike, the handle shall be clamped by a steel plate ( ) wide by ( ) long by ( ) thick, with a surface pressure of (). The distance from the axis of rotation to the end of the handle shall be ( ) . Dimensions in millimetres Key 1 axis of rotation 2s c r e w s 3s l e e v e 4 steel plate 5t o

48、o l 6 handle 7 rubber Figure 5 Attachment of the handle 3005m m 60 2 mm 3005m m 2 51m m 60 2 mm 300 5 mm 6,0 0,1 mm 100 20 kN/m 2 770 10 mmISO 16936-2:2005(E) 8 ISO 2005 All rights reserved 6.6 Impact velocity measuring equipment The apparatus shall incorporate equipment for measuring the impact vel

49、ocity, , to an accuracy in accordance with the tolerances in Table 2. The velocity shall be measured corresponding to a distance of ( ) from the axis of rotation. 7 Required characteristics The security-glazing product shall be submitted to testing for a particular category of resistance. The security-glazing product shall be classified in a particular category of resistance if all three test p