BS-903-A54-1989 ISO-4665-3-1987.pdf
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1、BRITISH STANDARD BS 903-A54: 1989 ISO 4665-3: 1987 Methods of testing vulcanized rubber Part A54: Methods for exposure to artificial light, for use in determining resistance to weathering ISO title: Rubber, vulcanized Resistance to weathering Part 3: Methods of exposure to artificial light UDC 678.0
2、63:678.019.32.36:678.01:620.1 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:48:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A54:1989 This British Standard, having been prepared under the direction of the Rubber Standards Committee, was published und
3、er the authority of the Board of BSI and comes into effect on 28 February 1989 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference RUM/36 Draft for comment 85/35956 DC ISBN 0 580 16965 0 Committees responsible for this British Standard The preparation of
4、 this British Standard was entrusted by the Rubber Standards Committee (RUM/-) to Technical Committee RUM/36, upon which the following bodies were represented: British Railways Board British Rubber Manufacturers Association ERA Technology Ltd. GAMBICA (BEAMA Ltd.) Institution of Mechanical Engineers
5、 Institution of Water Engineers and Scientists Malaysian Rubber Producers Research Association Ministry of Defence National College of Rubber Technology Rapra Technology SATRA Footwear Technology Centre Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Ban
6、k University, London South Bank University, Fri Dec 08 04:48:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A54:1989 BSI 09-1999i Contents Page Committees responsibleInside front cover National forewordii 0Introduction1 1Scope and field of application1 2References1 3Principle1 4Apparatus2 5Tes
7、t pieces3 6Test conditions4 7Procedure4 8Test report5 Annex A Correlation of the effects of exposure to artificial light sources and exposure to natural daylight6 Annex B Use of blue dyed wool standards to measure light dosage7 Annex C Spectral distribution of simulated solar radiation8 Annex D Info
8、rmation concerning exposure to the light from fluorescent tube lamps9 Annex E Suppliers of blue dyed wool standards and grey scale13 Figure 1 Spectral distribution Lamp A10 Figure 2 Spectral distribution Lamp B11 Figure 3 Spectral distribution Lamp C11 Figure 4 Spectral distribution Lamp D12 Figure
9、5 Spectral distribution Lamp E12 Table 1 Spray cycles4 Table 2 Exposure stages7 Table 3 Characteristics of fluorescent lamps10 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:48:58 GMT+00:00 2006, Uncontrolled Copy, (
10、c) BSI BS 903-A54:1989 ii BSI 09-1999 National foreword This Part of BS 903 has been prepared under the direction of the Rubber Standards Committee. It is identical with ISO 4665-3:1987 “Rubber, vulcanized Resistance to weathering Part 3: Methods of exposure to artificial light”, published by the In
11、ternational Organization for Standardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standar
12、ds; attention is drawn especially to the following. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Whenever the words “part of ISO 4665” appear, referring to this Part of this standard, they should b
13、e read as “Part of BS 903”. Additional information. A suitable physical standard for the determination of radiation dosage (see 4.7.2) uses polysulphone film and is described in BS 2782-5 “Optical and colour properties, weathering” Method 540C “Polysulphone film light exposure dosimeter”. A British
14、Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorrespondin
15、g British Standard BS 1006:1978 Methods of test for colour fastness of textiles and leather ISO 105-A02:1984Section A02 Grey scale for assessing change in colour (Technically equivalent) ISO 105-B01:1984Section B01 Blue wool standards (Technically equivalent) BS 903 Methods of testing vulcanized rub
16、bers ISO 1826:1981Part A19:1986 Heat resistance and accelerated ageing tests (National appendix A is technically equivalent) ISO 4661:1986Part A36:1988 Preparation of test pieces (Identical) ISO 4665-1:1985Part A55:1988 Method for assessment of changes in properties after exposure to natural weather
17、ing or artificial light, for use in determining resistance to weathering (Identical) ISO 4665-2:1985Part A53:1988 Methods for exposure to natural weathering, for use in determining resistance to weathering (Identical) Summary of pages This document comprises a front cover, an inside front cover, pag
18、es i and ii, pages 1 to 14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank Uni
19、versity, Fri Dec 08 04:48:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A54:1989 BSI 09-19991 0 Introduction The effects of light on the colour and other properties of rubbers is of considerable technical and commercial importance. Methods of exposing rubbers to natural light are dealt with i
20、n part 2 of this International Standard. Testing with laboratory light sources usually has one of the following purposes: a) to obtain results by accelerated testing under controlled conditions to indicate behaviour which would be given by prolonged exposure to natural daylight; b) for control tests
21、 on a material of known light resistance to establish that the level of quality of different batches does not vary from a known acceptable control. NOTEGuidance concerning the problems of correlation between the effects of exposure to artificial light sources and those obtained after exposure to nat
22、ural light is given in Annex A. For some specific applications, it may be possible to use certain fluorescent lamps as light sources. However, there is at present insufficient information on the reliability and repeatability of the results from such exposures to warrant inclusion of this type of app
23、aratus in this part of ISO 4665. Investigations into these matters are being undertaken and it is hoped that, as a result, fluorescent lamp light sources may be incorporated at a future revision. Notes giving some existing information on fluorescent lamps and their possible use are given in Annex D
24、which may assist interested parties in making their own investigations into the use of such devices. 1 Scope and field of application This part of ISO 4665 specifies methods of exposing vulcanized rubbers to an artificial light source in order to assess changes produced by such exposure. Of the diff
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