Glass in building — Forced-entry security glazing — Part 4: Test and classification by pendulum impact under thermally and fire stressed conditions

ISO 16936-4:2005 specifies requirements and mechanical test methods 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. It also classifies security-glazing products into categories of resistance against manual attack under thermally and fire stressed conditions.

Verre dans la construction — Vitrages de sécurité contre infractions — Partie 4: Essai et classification par impact pendulaire sous des conditions de contrainte thermique et de feu

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Status
Published
Publication Date
08-Mar-2005
Current Stage
9020 - International Standard under periodical review
Start Date
15-Jan-2008
Completion Date
15-Oct-2022
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ISO 16936-4:2005 - Glass in building -- Forced-entry security glazing
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INTERNATIONAL ISO
STANDARD 16936-4
First edition
2005-03-01
Glass in building — Forced-entry security
glazing —
Part 4:
Test and classification by pendulum
impact under thermally and fire stressed
conditions
Verre dans la construction — Vitrages de sécurité contre infractions —
Partie 4: Essai et classification par impact pendulaire sous des
conditions de contrainte thermique et de feu
Reference number
ISO 16936-4:2005(E)
ISO 2005
---------------------- Page: 1 ----------------------
ISO 16936-4:2005(E)
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© ISO 2005

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ii © ISO 2005 – All rights reserved
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ISO 16936-4:2005(E)
Contents Page

Foreword............................................................................................................................................................ iv

Introduction ........................................................................................................................................................ v

1 Scope...................................................................................................................................................... 1

2 Terms and definitions........................................................................................................................... 1

3 Significance and use ............................................................................................................................ 2

4 Sample selection, size, and specimen preparation........................................................................... 2

5 Test methods......................................................................................................................................... 3

6 Testing requirements and classification ............................................................................................ 6

7 Test report.............................................................................................................................................. 7

Annex A (informative) Test apparatus.............................................................................................................. 8

Bibliography ..................................................................................................................................................... 10

© ISO 2005 – All rights reserved iii
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ISO 16936-4:2005(E)
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. 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

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 committees 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 the 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 16936-4 was prepared by Technical Committee ISO/TC 160, Glass in building, Subcommittee SC 2, Use

considerations.

ISO 16936 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 attack

 Part 4: Test and classification by pendulum impact under thermally and fire stressed conditions

iv © ISO 2005 – All rights reserved
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ISO 16936-4:2005(E)
Introduction

ISO 16936 assesses security-glazing products that are more familiarly known as “anti-vandal”, “anti-bandit”,

and detention glazing products. Because there is no single test that will cover such a wide range of resistance

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 “anti-vandal” or “anti-

bandit”, since these terms can be only loosely defined and there is considerable overlap in their definition.

The test methods specified in this part of ISO 16936 do not reproduce the conditions of real human attack, but

are intended to provide a means of classifying glazing based on comparative resistance to certain forms of

mechanical attack.
© ISO 2005 – All rights reserved v
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INTERNATIONAL STANDARD ISO 16936-4:2005(E)
Glass in building — Forced-entry security glazing —
Part 4:
Test and classification by pendulum impact under thermally
and fire stressed conditions
1 Scope

This part of ISO 16936 specifies requirements and mechanical test methods 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. It also classifies security-glazing products into categories of resistance against manual attack

under thermally and fire stressed conditions.

NOTE Classifications have not been assigned to specific applications and glazing classification must be specified on

an individual basis for every application.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
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
2.2
attack face

face of a test piece marked by the manufacturer and/or supplier that is designed to face the attack

2.3
category of resistance

classification of the capability of a security-glazing product to resist actions of force

2.4
performance characteristic

response of the glazing sample in any one of the tests according to this part of ISO 16936

2.5
protected space
space protected against access by the completed installation
2.6
sample

specified number of test pieces which together are representative of the security-glazing product intended to

comply with a particular category of resistance specified in ISO 16936
© ISO 2005 – All rights reserved 1
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ISO 16936-4:2005(E)
2.7
security-glazing composition
specific construction 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 on 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 significantly affect the resistance to actions

of force.
2.8
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 transparent or translucent, and provides a specific resistance to the

actions of force.
2.9
test piece

specified piece of security-glazing product submitted to a specified test procedure

3 Significance and use

IMPORTANT — Security-glazing products should be installed in a frame which can give appropriate

resistance to impact and which also provides a suitable support for the security-glazing product.

Cut-outs and holes in security-glazing products should be avoided where possible, as these can affect

the resistance of the product.

The test methods given in this part of ISO 16936 aid in assigning a level of physical security to glazing used in

window and door assemblies based upon objective tests which can be consistently duplicated.

These test methods evaluate the resistance of security glazing to attacks using blunt and sharp impact

devices and fire. The test methods evaluate the performance of glazing in hot and cold environments, but do

not provide a measure of the resistance or performance of glazing subjected to attack by ballistics, chemical

agents, explosives or other extreme methods of attack. Where such elements are a factor, consult the

manufacturer.
4 Sample selection, size, and specimen preparation

4.1 The sample submitted for testing shall consist of three test pieces one for each test.

NOTE To ensure against invalid test results because of errors during the test, it is advisable to submit at least one

extra test piece.

4.2 Each test piece shall be (1 100 ± 5) mm long × (900 ± 5) mm wide. The edges shall be free from visible

chips, cracks and flaws. Glass samples should be lightly arrissed for ease of handling.

4.3 Figure A.1 shows an acceptable test fixture sketch and the location of the strike points specified in

Tables 1 and 2.

4.4 For non-symmetrical materials, the attack face of the product shall be identified by the manufacturer

and attacked during the test process.
2 © ISO 2005 – All rights reserved
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ISO 16936-4:2005(E)
5 Test methods
5.1 Low-temperature impact test
5.1.1 General

This test is designed to evaluate the capability of security glazing to resist repeated impact forces from both a

blunt and a sharp impactor under cold temperature conditions. This test is intended to closely simulate a

sustained battering ram style or pounding type attack and provide an evaluation of the capability of the glazing

to prevent, delay, or frustrate penetration and access to unauthorized areas under cold temperature conditions.

An impact test of this design performed on security glazing evaluates the impact strength of the glazing and its

components as well as the quality of fabrication techniques.
5.1.2 Test apparatus

5.1.2.1 Large blunt impactor, consisting of a hinged or pivoted system with a mass of 36,3 kg capable

of delivering impacts of 270 J to a glazing specimen mounted in a frame assembly, with a striking surface

made from C1010-C1020 carbon steel and having a striking surface of 100 ± 2 mm with rounded edges

similar to a 4,5 kg sledgehammer head. See Figure A.4.

5.1.2.2 Sharp impactor, consisting of a hinged or pivoted system with a mass of 36,3 kg capable of

delivering impacts of 135 J to a glazing specimen mounted in a frame assembly, with a striking surface made

from C1010-C1020 carbon steel
...

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