Road vehicles -- Safety glazing materials -- Test methods for resistance to radiation, high temperature, humidity, fire and simulated weathering

ISO 3917:2016 specifies test methods for resistance to radiation, high temperature, humidity, fire and simulated weathering, relating to the safety requirements for all safety glazing materials in a road vehicle, whatever the type of glass or the material of which they are composed.

Véhicules routiers -- Vitrages de sécurité -- Méthodes d'essai de résistance au rayonnement, aux températures élevées, à l'humidité, au feu et aux conditions climatiques simulées

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Publication Date
17-Feb-2016
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9060 - Close of review
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05-Jun-2021
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INTERNATIONAL ISO
STANDARD 3917
Fourth edition
2016-02-15
Road vehicles — Safety glazing
materials — Test methods for
resistance to radiation, high
temperature, humidity, fire and
simulated weathering
Véhicules routiers — Vitrages de sécurité — Méthodes d’essai de
résistance au rayonnement, aux températures élevées, à l’humidité, au
feu et aux conditions climatiques simulées
Reference number
ISO 3917:2016(E)
ISO 2016
---------------------- Page: 1 ----------------------
ISO 3917:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All 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 intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 3917:2016(E)
Contents Page

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

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

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test conditions ....................................................................................................................................................................................................... 1

5 Application of test ............................................................................................................................................................................................... 1

6 Radiation test ........................................................................................................................................................................................................... 1

6.1 Principle ........................................................................................................................................................................................................ 1

6.2 Apparatus .................................................................................................................................................................................................... 2

6.2.1 Radiation source .............................................................................................................................................................. 2

6.2.2 Power supply ...................................................................... ................................................................................................. 2

6.2.3 Device for mounting and rotating the test specimens..................................................................... 2

6.3 Test specimens ........................................................................................................................................................................................ 2

6.4 Procedure .................................................................................................................................................................................................... 2

6.5 Expression of results .......................................................................................................................................................................... 2

7 High temperature test ..................................................................................................................................................................................... 3

7.1 Principle ........................................................................................................................................................................................................ 3

7.2 Procedure .................................................................................................................................................................................................... 3

7.3 Expression of results .......................................................................................................................................................................... 3

8 Humidity test ............................................................................................................................................................................................................ 3

8.1 Principle ........................................................................................................................................................................................................ 3

8.2 Procedure .................................................................................................................................................................................................... 3

8.3 Expression of results .......................................................................................................................................................................... 4

9 Fire resistance test ............................................................................................................................................................................................. 4

9.1 Principle ........................................................................................................................................................................................................ 4

9.2 Apparatus .................................................................................................................................................................................................... 4

9.3 Test specimens ........................................................................................................................................................................................ 4

9.4 Procedure .................................................................................................................................................................................................... 4

9.5 Expression of results .......................................................................................................................................................................... 5

10 Resistance to simulated weathering ................................................................................................................................................ 5

10.1 Principle ........................................................................................................................................................................................................ 5

10.2 Exposure apparatus ............................................................................................................................................................................ 6

10.3 Test specimens ........................................................................................................................................................................................ 6

10.4 Procedure .................................................................................................................................................................................................... 6

10.5 Evaluation .................................................................................................................................................................................................... 7

10.6 Expression of results .......................................................................................................................................................................... 8

10.7 Report of test parameters .............................................................................................................................................................. 8

Bibliography ................................................................................................................................................................................................................................ 9

© ISO 2016 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 3917:2016(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/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 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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent 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 information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 35, Lighting

and visibility.

This fourth edition cancels and replaces the third edition (ISO 3917:1999), which has been

technically revised.
iv © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 3917:2016(E)
Road vehicles — Safety glazing materials — Test methods
for resistance to radiation, high temperature, humidity, fire
and simulated weathering
1 Scope

This International Standard specifies test methods for resistance to radiation, high temperature,

humidity, fire and simulated weathering, relating to the safety requirements for all safety glazing

materials in a road vehicle, whatever the type of glass or the material of which they are composed.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3536, Road vehicles — Safety glazing materials — Vocabulary
ISO 3537, Road vehicles — Safety glazing materials — Mechanical tests

ISO 3538, Road vehicles — Safety glazing materials — Test methods for optical properties

ISO 4892-2:2013, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 3536 apply.

4 Test conditions

Unless otherwise specified, the test shall be carried out under the following conditions:

— ambient temperature: 20 °C ± 5 °C;
— atmospheric pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar);
— relative humidity: (60 ± 20) %.
5 Application of test

For certain types of safety glazing material, it is not necessary to carry out all the tests specified in this

International Standard.
6 Radiation test
6.1 Principle

Determination of whether exposure to radiation over an extended period of time produces any

appreciable decrease in regular luminous transmittance or any pronounced discoloration of the safety

glazing material.
© ISO 2016 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 3917:2016(E)
6.2 Apparatus
6.2.1 Radiation source

Radiation source, consisting of a medium pressure mercury arc lamp with a tubular quartz bulb of

ozone-free type. The bulb axis shall be vertical and equipped with a suitable filter tube removing

radiation below 300 nm. The lamp should operate at a power of 750 W ± 50 W.

Any other source of radiation which produces the same effect as the lamp specified above may be used.

To check that the effects of another source are the same, a comparison shall be made by measuring the

amount of energy emitted within a wavelength range of 300 nm to 450 nm, all other wavelengths being

removed by the use of suitable filters. The alternative source shall then be used with these filters.

In the case of safety glazing material for which there is no satisfactory correlation between this test

and the conditions of use, it will be necessary to review the test conditions.
6.2.2 Power supply
The power supply shall be capable of supplying adequate power to the lamp.
6.2.3 Device for mounting and rotating the test specimens

The device shall be capable of mounting and rotating the test specimens at 1 r/min to 5 r/min about the

centrally located radiation source in order to ensure even exposure.
6.3 Test specimens
The size of the test specimens shall be 76 mm × 300 mm.
6.4 Procedure

Measure the regular luminous transmittance, determined according to ISO 3538, of three test specimens

before exposure. Protect a portion of each test specimen from the radiation, and then position the test

specimen in the test apparatus 230 mm from, and with its 300 mm dimension parallel to the lamp axis.

Maintain the temperature of the test specimens at 45 °C ± 5 °C throughout the test.

The surface of each test specimen which would represent the outside face of the safety glazing material

when mounted on the vehicle shall face the lamp. For the type of lamp specified in 6.2.1, the exposure

time shall be 100 h.

After exposure, measure the luminous transmittance again on each test specimen in the exposed area.

6.5 Expression of results
The results of the luminous transmission measure
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 3917
ISO/TC 22/SC 11 Secretariat: ANSI
Voting begins on: Voting terminates on:
2014-03-24 2014-06-24
Road vehicles — Safety glazing materials — Test methods
for resistance to radiation, high temperature, humidity, fire
and simulated weathering

Véhicules routiers — Vitrages de sécurité — Méthodes d’essai de résistance au rayonnement, aux

températures élevées, à l’humidité, au feu et aux conditions climatiques simulées

[Revision of third edition (ISO 3917:1999)]
ICS: 43.040.65;81.040.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 3917:2014(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2014
---------------------- Page: 1 ----------------------
ISO/DIS 3917:2014(E)
Copyright notice

This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as

permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract

from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means,

electronic, photocopying, recording or otherwise, without prior written permission being secured.

Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2014 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 3917
Contents Page

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

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

2 Normative references ............................................................................................................................ 1

3 Terms and definitions ........................................................................................................................... 1

4 Test conditions ...................................................................................................................................... 1

5 Application of test ................................................................................................................................. 1

6 Radiation test ......................................................................................................................................... 2

6.1 Principle.................................................................................................................................................. 2

6.2 Apparatus ............................................................................................................................................... 2

6.2.1 Radiation source ................................................................................................................................... 2

6.2.2 Power supply ......................................................................................................................................... 2

6.2.3 Device for mounting and rotating the test specimens ...................................................................... 2

6.3 Test specimen ........................................................................................................................................ 2

6.4 Expression of results ............................................................................................................................ 2

7 High temperature test ........................................................................................................................... 3

7.1 Principle.................................................................................................................................................. 3

7.2 Procedure ............................................................................................................................................... 3

7.3 Expression of results ............................................................................................................................ 3

8 Humidity test .......................................................................................................................................... 3

8.1 Principle.................................................................................................................................................. 3

8.2 Procedure ............................................................................................................................................... 3

8.3 Expression of results ............................................................................................................................ 4

9 Fire Resistance Test .............................................................................................................................. 4

9.1 Principle.................................................................................................................................................. 4

9.2 Apparatus ............................................................................................................................................... 4

9.3 Test specimens ...................................................................................................................................... 4

9.4 Test Procedure ...................................................................................................................................... 4

10 Resistance to simulated weathering ................................................................................................... 6

10.1 Principle.................................................................................................................................................. 6

10.2 Exposure apparatus .............................................................................................................................. 6

10.2.1 Light sources ......................................................................................................................................... 6

10.3 Test specimens ...................................................................................................................................... 6

10.4 Procedure ............................................................................................................................................... 7

10.5 Evaluation............................................................................................................................................... 8

10.6 Expression of results ............................................................................................................................ 8

10.7 Report of test parameters ..................................................................................................................... 8

© ISO 2013 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 3917
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 3917 was prepared by Technical Committee ISO/TC 22, Road Vehicles, Subcommittee SC 11, Safety

glazing materials.

This fourth edition cancels and replaces the fthird edition (ISO 3917:1999), which has been technically

revised.
iv © ISO 2013 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 3917
Road vehicles — Safety glazing materials — Test methods for
resistance to radiation, high temperature, humidity, fire and
simulated weathering
1 Scope

This International Standard specifies test methods for resistance to radiation, high temperature, humidity, fire

and simulated weathering, relating to the safety requirements for all safety glazing materials in a road vehicle,

whatever the type of glass or the material of which they are composed.
2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute

provisions of this International Standard. For dated references, subsequent amendments to, or revisions of,

any of these publications do not apply. However, parties to agreements based on this International Standard

are encouraged to investigate the possibility of applying the most recent editions of the normative documents

indicated below. For undated references, the latest edition of the normative document referred to applies.

Members of ISO and IEC maintain registers of currently valid International Standards.

ISO 3536, Road vehicles — Safety glazing materials — Vocabulary
ISO 3537, Road vehicles — Safety glazing materials — Mechanical tests

ISO 3538, Road vehicles — Safety glazing materials — Test methods for optical properties

ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry — Determination of burning

behaviour of interior materials

ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance

ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc sources

3 Terms and definitions

For the purposes of this International Standard, the terms and definitions given in ISO 3536 apply.

4 Test conditions

Unless otherwise specified, the test shall be carried out under the following conditions:

 ambient temperature: 20 °C ± 5 °C;
 atmospheric pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar);
 relative humidity: (60 ± 20) %.
5 Application of test

For certain types of safety glazing material, it is not necessary to carry out all the tests specified in this

International Standard.
© ISO 2013 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO/DIS 3917
6 Radiation test
6.1 Principle

Determination of whether exposure to radiation over an extended period of time produces any appreciable

decrease in regular luminous transmittance or any pronounced discoloration of the safety glazing material.

6.2 Apparatus
6.2.1 Radiation source

Radiation source, consisting of a medium pressure mercury arc lamp with a tubular quartz bulb of ozone-free

type. The bulb axis shall be vertical and equipped with a suitable filter tube removing radiation below 300nm.

The lamp operation parameters must be lamp power of 750 W ± 50 W.

Any other source of radiation which produces the same effect as the lamp specified above may be used. To

check that the effects of another source are the same, a comparison shall be made by measuring the amount

of energy emitted within a wavelength range of 300 nm to 450 nm, all other wavelengths being removed by

the use of suitable filters. The alternative source shall then be used with these filters.

In the case of safety glazing material for which there is no satisfactory correlation between this test and the

conditions of use, it will be necessary to review the test conditions.
6.2.2 Power supply
The power supply shall be capable of supplying adequate power to the lamp.
6.2.3 Device for mounting and rotating the test specimens

The device shall be capable of mounting and rotating the test specimens at 1 r/min to 5 r/min about the

centrally located radiation source in order to ensure even exposure.
6.3 Test specimen
The size of the test specimens shall be 76 mm × 300 mm.
6.3.1 Procedure

Measure the regular luminous transmittance, determined according to ISO 3538, of three test specimens

before exposure. Protect a portion of each test specimen from the radiation, and then position the test

specimen in the test apparatus 230 mm from, and with its 300 mm dimension parallel to, the lamp axis.

Maintain the temperature of the test specimens at 45 °C ± 5 °C throughout the test.

The surface of each test specimen which would represent the outside face of the safety glazing material when

mounted on the vehicle shall face the lamp. For the type of lamp specified in 6.2.1, the exposure time shall be

100 h.

After exposure, measure the luminous transmittance again on each test specimen in the exposed area.

6.4 Expression of results

The results of the luminous transmission measurement of the exposed test specimen shall be compared with

the values obtained for unexposed test specimens of the same material.
Changes in colour shall be evaluated:

1) A medium pressure mercury arc lamp which yields radiation spectra in the appropriate range at the specified

operating parameters is available under the trade name Heraeus Noblelight Q 701, modified by means of a UV-C filter

tube.
2 © ISO 2013 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/DIS 3917

 either by examining the test specimens placed upon a white background and comparing the exposed

area
...

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