BS-903-A55-1989 ISO-4665-1-1985.pdf
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1、BRITISH STANDARD BS 903-A55: 1989 ISO 4665-1: 1985 Methods of testing vulcanized rubber Part A55: Methods for assessment of changes in properties after exposure to natural weathering or artificial light, for use in determining resistance to weathering ISO title: Rubber, vulcanized Resistance to weat
2、hering Part 1: Assessment of changes in properties after exposure to natural weathering or artificial light UDC 678.063:678.019.32.36:678.01 : 620.1 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:49:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A55:19
3、89 This British Standard, having been prepared under the direction of the Rubber Standards Committee, was published under 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/
4、36 Draft for comment 83/39359 DC ISBN 0 580 16966 9 Committees responsible for this British Standard The preparation of 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 Boar
5、d British Rubber Manufacturers Association ERA Technology Ltd. GAMBICA (BEAMA Ltd.) Institution of Mechanical Engineers Institution of Water Engineers and Scientists Malaysian Rubber Producers Research Association Ministry of Defence National College of Rubber Technology Rapra Technology SATRA Footw
6、ear Technology Centre Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:49:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A55:1989 BSI 09-1999i Contents Page Committees responsibleInside fr
7、ont cover National forewordii 0Introduction1 1Scope and field of application1 2References1 3Determination of changes in colour or appearance1 4Determination of physical properties2 5Expression of results2 6Test report3 Annex Suppliers of grey scale4 Publications referred toInside back cover Licensed
8、 Copy: London South Bank University, London South Bank University, Fri Dec 08 04:49:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A55:1989 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 466
9、5-1:1985 “Rubber, vulcanized Resistance to weathering Part 1: Assessment of changes in properties after exposure to natural weathering or artificial light”, published by the International Organization for Standardization (ISO). Terminology and conventions. The text of the International Standard has
10、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 Standards; attention is drawn especially to the following. Wherever the words “part of ISO 4665” appear, referring to this standard
11、, they should be read as “Part of BS 903”. Additional information. Some physical methods cannot be conducted after artificial light exposure because of the size of test piece imposed by the exposure instrument. Where the physical method requires the determination of some statistical approach, it may
12、 be necessary to conduct, in some cases, a greater number of tests in order to obtain a better estimate of the true value of the population, so that the effect of light exposure is not misinterpreted. A British Standard does not purport to include all the necessary provisions of a contract. Users of
13、 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 StandardCorresponding British Standard BS 1006:1978 Methods of test for colour fastness of textiles and leath
14、er ISO 105-A01:1984Section A01 General principles of testing (Technically equivalent) ISO 105-A02:1984Section A02 Grey scale for assessing change in colour (Technically equivalent) BS 903 Methods of testing vulcanized rubbers ISO 471:1983Part A35:1985 Temperatures, humidities and times for condition
15、ing and testing of test pieces (Identical) ISO 1431-1:1980Part A43:1982 Determination of resistance to ozone cracking (static strain test) (Identical) ISO 4665-2:1985Part A53:1989 Methods for exposure to natural weathering, for use in determining resistance to weathering (Identical) ISO 4665-3:1987P
16、art A54:1989 Methods for exposure to artificial light, for use in determining resistance to weathering (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see c
17、opyright 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 University, Fri Dec 08 04:49:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 903-A55:1989 BSI 09-19991 0 I
18、ntroduction A number of different exposure techniques have been established to provide information on the effects of weathering or exposure to light on rubber materials. Each of these has its own particular application and relevance. However, it is desirable that the procedure for the determination
19、of the changes in properties should be the same whatever exposure is used and that the results should be expressed in a uniform manner; this part of ISO 4665 has been prepared to meet this requirement, it is the intention that subsequent parts dealing with the different exposure methods should invok
20、e this part of ISO 4665. Exposure to light may alter the properties of the material, particularly in the surface layer. The test method used to determine changes in properties should be selected after consideration of the properties of the material which are important in its proposed application. Th
21、e methods chosen should be capable of measuring changes in properties with sufficient precision within the ranges which are important in practice, so as to provide significant criteria of change. 1 Scope and field of application This part of ISO 4665 describes methods for the determination of change
22、s in colour or appearance and variations in physical or other properties of rubber materials after exposure to natural or artificial light under specified conditions. 2 References ISO 105, Textiles Tests for colour fastness Section A01: General principles of testing Section A02: Grey scale for asses
23、sing change in colour. ISO 471, Rubber Standard temperatures, humidities and times for the conditioning and testing of test pieces. ISO 1431-1, Rubber, vulcanized Resistance to ozone cracking Part 1: Static strain test. ISO 4665, Rubber, vulcanized Resistance to weathering Part 2: Methods of exposur
24、e to natural weathering Part 3: Methods of exposure to laboratory light sources1). 3 Determination of changes in colour or appearance 3.1 Changes in colour 3.1.1 Principle Determination of changes in colour of rubber test pieces exposed in accordance with ISO 4665-2 or ISO 4665-3, either by visual a
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