BS 5173-106 2-1990 Methods of test for rubber and plastics hoses and hose assemblies - Environmental tests - General requirements for high temperature ageing tests《橡胶和塑料软管组件的试验方法 第.pdf

1、BRITISH STANDARD BS 5173-106.2: 1990 Methods of test for Rubber and plastics hoses and hose assemblies Part 106: Environmental tests Section 106.2 General requirements for high temperature ageing testsBS5173-106.2:1990 This British Standard, having been prepared under the directionof the Rubber Stan

2、dardsPolicy Committee, waspublished under the authorityof the Board of BSI andcomes into effect on 31 August 1990 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference RUM/9 Draft for comment 89/40491 DC ISBN 0 580 18700 4 Committees responsible for this B

3、ritish Standard The preparation of this British Standard was entrusted by the Rubber Standards Policy Committee (RUM/-) to Technical Committee RUM/9, upon which the following bodies were represented: Association of Metropolitan Authorities British Coal Corporation British Compressed Gases Associatio

4、n British Gas plc British Rubber Manufacturers Association Chief and Assistant Chief Fire Officers Association Energy Industries Council Fire Extinguishing Trades Association Home Office Institution of Fire Engineers Liquefied Petroleum Gas Industry Technical Association (UK) London Fire and Civil D

5、efence Authority London Regional Transport Malaysian Rubber Producers Research Association Ministry of Defence Society of Motor Manufacturers and Traders Limited The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Fluid Power Associat

6、ion Engineering Equipment and Materials Users Association Amendments issued since publication Amd. No. Date CommentsBS5173-106.2:1990 BSI 07-1999 i Contents Page Committees responsible Inside front cover Foreword ii 0 Introduction 1 1 Scope 1 2 Apparatus 1 3 Test samples 1 4 Procedure 1 5 Expression

7、 of results 1 6 Test report 1 Publication(s) referred to Inside back coverBS5173-106.2:1990 ii BSI 07-1999 Foreword This Section of BS5173, prepared under the direction of the Rubber Standards Policy Committee, is a revision of clause 6 of BS5173-6:1977. Together with BS5173-106.1, BS5173-106.3 and

8、BS5173-106.4, this Section supersedes BS5173-6:1977 which is withdrawn. The remainder of the1976and1977editions of BS5173 is to be revised and as each of the tests is revised it is intended to issue it as a separate Part or Section of BS5173, as described in BS5173-100. A British Standard does not p

9、urport 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. Summary of pages This document comprises a front cover, an inside fron

10、t cover, pages i and ii, pages 1 and 2, 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.BS5173-106.2:1990 BSI 07-1999 1 0 Introduction This Sec

11、tion of BS5173 provides a means of comparing the performance of hoses/hose assemblies after the hoses/hose assemblies are exposed to particular service conditions. It does not attempt to simulate any effect which the contents of the hose may have on the hose at that temperature, that effect is prefe

12、rably assessed through trials using the complete equipment. It is to measure the effect of temperature on the whole hose construction and not just on the vulcanizates in isolation. NOTE 1It is a prerequisite to this specification that the designer of the equipment has information concerning the maxi

13、mum temperature which is likely to be encountered in service and the period of time for which the equipment functions at that temperature. NOTE 2The relationship of test sample length to hose bore and minimum specified bend radius and the capacity of the temperature controlled chambers may be restri

14、cting factors and for this reason flexibility (bend tests) should be limited to hoses up to and including40mm nominal bore unless it is essential for proving the suitability of larger hoses for their end use. 1 Scope This Section of BS5173 describes the method by which a sample of rubber hose is exp

15、osed to temperatures in excess of the prevailing normal atmospheric temperatures but within the upper temperature limit specified in the relevant hose product specification, after which it is subjected to physical tests to establish the extent of deterioration. NOTEThe titles of the publications ref

16、erred to in this standard are listed on the inside back cover. 2 Apparatus The temperature controlled chamber shall be a normal oven complying with 3.2.2 of BS903-A19:1986. 3 Test samples The test samples shall be of sufficient length to provide all the test pieces required to perform all the produc

17、t tests listed in the hose product specification. NOTEThe test samples should be of sufficient length to provide test pieces necessary for any additional tests required by the designer. 4 Procedure 4.1 Place the test pieces in the oven preheated to the test temperature. The test temperature shall be

18、 the maximum service temperature defined by the equipment designer. The test pieces shall be stationary, free from strain, freely exposed to air on all sides and not exposed to light. 4.2 Maintain the test temperature for the period of time specified by the equipment designer. 4.3 On completion of t

19、he heating period, remove the test pieces from the oven and condition them for notless than16h and not more than6days in a strain-free condition and in accordance with the details of the atmosphere given in the appropriate test method for the particular property being studied. 4.4 Prepare the test p

20、ieces in accordance with the relevant test method. 4.5 Carry out the tests and record the results. 5 Expression of results The results shall be expressed in accordance with the relevant specifications for the property tests. 6 Test report The test report shall include the following information: a) t

21、he number of the British Standard to which the hose was manufactured; b) details of any marking on the hose; c) the hose type and nominal bore sizes; d) details of the construction, including the type of reinforcement; e) the number of this British Standard, i.e.BS5173-106.2:1990; f) the test temper

22、ature and period of exposure; g) details of the tests carried out and the results obtained.2 blankBS5173-106.2:1990 BSI 07-1999 Publication(s) referred to BS 903, Methods of testing vulcanized rubber. BS 903-A19, Heat resistance and accelerated ageing tests. BS 5173, Methods of test for rubber and p

23、lastics hoses and hose assemblies. BS 5173-6, Environmental tests 1) . BS 5173-100, General introduction 1) . BS 5173-106.1, Determination of low temperature flexibility 1) . BS 5173-106.3, Determination of ozone resistance 1) . BS 5173-106.4, Determination of resistance to ultraviolet light 1) . 1)

24、 Referred to in the foreword only.BS 5173-106.2: 1990 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorpor

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