ISO 3917-2016 Road vehicles - Safety glazing materials - Test methods for resistance to radiation high temperature humidity fire and simulated weathering《道路车辆 安.pdf

1、 ISO 2016 Road vehicles Safety glazing materials Test methods for resistance to radiation, high temperature, humidity, fire and simulated weathering Vhicules routiers Vitrages de scurit Mthodes dessai de rsistance au rayonnement, aux tempratures leves, lhumidit, au feu et aux conditions climatiques

2、simules INTERNATIONAL STANDARD ISO 3917 Fourth edition 2016-02-15 Reference number ISO 3917:2016(E) ISO 3917:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be repr

3、oduced 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 ISOs member body in the country of the requeste

4、r. 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 copyrightiso.org www.iso.org ISO 3917:2016(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Test conditions . 1 5 Application of test . 1

5、 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 Expressi

6、on 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

7、 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 Contents Page ISO 3917:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of nation

8、al 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. Internatio

9、nal 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

10、 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

11、.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

12、 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 express

13、ions related to conformity assessment, as well as information about ISOs 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, L

14、ighting 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 INTERNATIONAL ST ANDARD ISO 3917:2016(E) Road vehicles Safety glazing materials Test methods for resistance to radiation, high temper

15、ature, 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

16、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 ed

17、ition 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, Pla

18、stics 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: ambi

19、ent 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

20、 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 ISO 3917:2016(E) 6.2 Apparatus 6.2.1 Radiation

21、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. 1) Any other source of

22、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 u

23、se 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 su

24、pply 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 Te

25、st 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 t

26、he 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

27、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 measurement of the exposed test speci

28、men shall be compared with the values obtained for unexposed test specimens of the same material. Changes in colour shall be evaluated either by examining the test specimens placed upon a white background and comparing the exposed area with the area which was protected from the radiation or measurin

29、g the trichromatic coordinates of the test specimen before and after ageing and by calculating the difference between two colours according to the CIE 2)prescriptions. 1) A medium pressure mercury arc lamp which yields radiation spectra in the appropriate range at the specified operating parameters

30、is available under the trade name Heraeus Noblelight Q 701, modified by means of a UV-C filter tube. 2) International Commission on Illumination.2 ISO 2016 All rights reserved ISO 3917:2016(E) 7 High temperature test 7.1 Principle Determination of whether the safety glazing material will withstand e

31、xposure to high temperatures over an extended period of time without its appearance becoming substantially altered. 7.2 Procedure Heat one or more test specimens of at least 300 mm 300 mm to 100 C C. Maintain this temperature for a period of 2 h, then allow the test specimen(s) to cool to room tempe

32、rature. If the safety glazing material has both external surfaces of inorganic material, the test may be carried out by immersing the test specimen vertically in water boiling at 100 C C for the specified period of time, care being taken to avoid undue thermal shock. If specimens are cut from windsc

33、reens, one edge of the test specimen shall be part of an edge of the windscreen. 7.3 Expression of results The resistance of the safety glazing material to high temperatures shall be evaluated with reference to bubbles or other defects produced in the test specimen by the test described in 7.2. Any

34、defects within 15 mm of an uncut edge, 25 mm from a cut edge or within 10 mm of any cracks which may develop shall be disregarded. Any test specimen in which cracks develop to an extent which might confuse the results shall be discarded and another test specimen shall be tested in its place. 8 Humid

35、ity test 8.1 Principle Determination of whether the safety glazing material will successfully withstand the effects of humidity in the atmosphere over an extended period of time. 8.2 Procedure Keep one or more test specimens of at least 300 mm 300 mm vertically for two weeks in a closed container in

36、 which the temperature is maintained at 50 C 2 C and the relative humidity at (95 4) %. These test conditions should exclude any condensation on test specimens. In the event that several test specimens are tested at the same time, adequate spacing shall be provided between the test specimens. Precau

37、tions shall be taken to prevent condensate from the walls and ceiling of the test chamber from falling on the test specimens. If the test specimens are cut from windscreens, one edge of the test specimen shall be part of an edge of the windscreen. ISO 2016 All rights reserved 3 ISO 3917:2016(E) 8.3

38、Expression of results The resistance to humidity shall be evaluated visually by reference to change in the appearance of the safety glazing material after testing, i.e.: separation of materials; loss of transparency according to ISO 3538. A waiting period of 48 h after exposure prior to evaluation i

39、s permitted, if necessary. The changes shall be assessed over the whole test specimen and any changes which extend more than 6 mm from an uncut edge or 10 mm from a cut edge shall be reported. 9 Fire resistance test Alternatively, the apparatus and method described in ISO 3795 may be used. 9.1 Princ

40、iple The purpose of this test is to determine the horizontal burning rate of safety glazing materials, of which at least one surface is plastic, after exposure to a small flame. 9.2 Apparatus a) The test shall be conducted in a laboratory hood or draft-free enclosure greater than 0,5 m 3in size and

41、provided with a means for venting the fumes from burning test specimens. If a hood is used, its exhaust fan will be turned off during the test but allowed to run periodically to clear out the fumes between tests. b) The test specimen shall be clamped in a suitable holder, at the end farthest from th

42、e 25 mm mark, with its longitudinal axis horizontal and its transverse axis inclined at 45 to the horizontal. The specimen is held with the plastic surface downward, facing the flame. c) Under the test specimen there shall be clamped a 20 mesh per 25,4 mm Bunsen burner gauze, about 125 mm square, in

43、 a horizontal position 6 mm below the edge of the test specimen and with about 13 mm of the test specimen extending beyond the edge of the gauze as illustrated in Figure 1. d) The flame is provided by a Bunsen burner. The gas supplied to the burner shall have a caloric value of about 38 MJ/m 3(for e

44、xample, natural gas). 9.3 Test specimens a) At least three 150 mm 13 mm flat test specimens shall be tested. The test specimens shall be marked by inscribing two lines, 25 mm and 100 mm from one end of each specimen. b) The specimens shall be conditioned for at least 48 h, at a temperature of 23 C 2

45、 C and a relative humidity of (50 5) %, and shall be maintained under these conditions until immediately prior to the test. 9.4 Procedure a) A Bunsen burner with a stable, blue, gas flame 12 mm to 20 mm in height shall be placed under the free end of the test specimen and adjusted so that the flame

46、tip is just in contact with the test specimen. b) At the end of 30 s, the flame shall be removed and the test specimen allowed to burn. c) A stopwatch shall be started when the flame reaches the first mark, 25 mm from the free end, and the time recorded when the flame reaches the 100 mm mark.4 ISO 2

47、016 All rights reserved ISO 3917:2016(E) d) In case the test specimen does not continue to burn after the first ignition, the burner shall be placed under the free end for a second period of 30 s immediately following extinction of the flame burning. 9.5 Expression of results The horizontal burning

48、rate of each test specimen, as well as the average of all specimens tested, shall be recorded in millimetres per minute according to Formula (1): (1) wheres is the burnt distance in millimetres;t is the time in seconds, taken to burn the distance, s. If the specimen does not ignite or does not conti

49、nue to burn, reaching the first mark, after the gas flame has been removed, a burning rate of 0 mm/min shall be reported. If a test specimen does not continue burning to the 100 mm mark after a second ignition with the gas flame, it shall be reported as non-sustaining. Dimensions in millimetres 1 1 2 2 3 3 Key 1 wire gauze 2 test specimen 3 burner Figure 1 Horizontal burning test 10 Resistance to simulated weathering 10.1 Principle Determination