BS 5173-103 13-1994 Methods of test for rubber and plastics hoses and hose assemblies Physical tests Determination of resistance to fire《橡胶和塑料软管及软管组件试验方法 第103部分 物理试验 第13节 抗燃性测定》.pdf

1、BRITISH STANDARD BS 5173-103.13: 1994 Methods of test for Rubber and plastics hoses and hose assemblies Part 103: Physical tests Section 103.13 Determination of resistance to fireBS5173-103.13:1994 This British Standard, having been prepared under the directionof the Plastics and Rubber Standards Po

2、licy Committee, was published underthe authority of the Standards Board and comes intoeffect on 15 January 1994 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference PRM/66 Draft for comment 92/47519 DC ISBN 0 580 22658 1 Committees responsible for this Br

3、itish Standard The preparation of this British Standard was entrusted by the Plastics and Rubber Standards Policy Committee (PRM/-) to Technical Committee PRM/66, upon which the following bodies were represented: Association of Metropolitan Authorities British Coal Corporation British Compressed Gas

4、es Association British Rubber Manufacturers Association Ltd. 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

5、 Defence Authority 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 Association British Gas plc Amendments issued since publication Amd. No. Date Co

6、mmentsBS5173-103.13:1994 BSI 07-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Normative references 1 3 Apparatus 1 4 Test pieces 1 5 Conditioning 1 6 Procedure 1 7 Test report 1 List of references Inside back coverBS5173-103.13:1994 ii BSI 07-1999 Foreword Th

7、is Section of BS5173 was prepared under the direction of the Plastics and Rubber Standards Policy Committee. The basic test method is similar to that described in BS3G100-2.3.13, but the test described in this standard is more appropriate for hose assemblies. This test is a specialized test and shou

8、ld be carried out only at the specific request of the purchaser who should also specify the appropriate test fluid. A British 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 B

9、ritish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendmen

10、ts incorporated. This will be indicated in the amendment table on theinside front cover.BS5173-103.13:1994 BSI 07-1999 1 1 Scope This Section of BS5173 describes a method to determine the resistance to fire of hose assemblies. NOTEThis Section of BS5173 does not specify the test pressure at which th

11、e tests are carried out or the minimum bend radius at which the test is to be performed. These details are specified in the appropriate hose product specification along with the period for which the test flame is to be applied and reference to grades of resistance to fire. 2 Normative references Thi

12、s Section of BS5173 incorporates, by reference, provisions from specific editions of other publications. These normative references are cited at the appropriate points in the text and the publications are listed on the inside back cover. Subsequent amendments to, or revisions of, any of these public

13、ations apply to this Section of BS5173 only when incorporated in it by updating or revision. 3 Apparatus 3.1 Test rig, capable of the following functions: a) mounting a hose assembly bent to its minimum bend radius, as given in the relevant hose product specification; b) maintaining a constant press

14、ure equal to the maximum working pressure of the hose as specified in the relevant hose product specification; c) with one end of the hose assembly blanked, vibrating the blanked end with an amplitude of 1.25mm and a frequency of50Hz. 3.2 Burner, calibrated in accordance with AppendixE of BS3G100-2.

15、3.13:1973 and capable of producing the flame conditions specified in AppendixA of BS3G100-2.3.13:1973. 4 Test pieces Two test assemblies with end fittings attached shall be tested. Each test assembly shall be of a length that ensures that when mounted in the rest rig the hose is bent at the minimum

16、bend radius as stated in the relevant hose product specification. 5 Conditioning No test shall be carried out within24h of manufacture. The test assemblies shall be conditioned for at least3h at standard laboratory temperature as specified in BS903-A35:1985, before testing. NOTEThe3h conditioning pe

17、riod may form part of the24h period after manufacture. 6 Procedure 6.1 General Blank one end of the assembly and mount on the test rig so that it is bent at the minimum bend radius as given in the relevant hose product specification. Sleeves for the end fittings, if normally fitted as part of the ho

18、se assembly, shall be in position during the test. Fill the hose assembly with the test fluid (see foreword). Vibrate the blanked end throughout the test at a frequency of50Hz and an amplitude of 1.25mm. Subject the hose assembly to a constant pressure equal to the maximum working pressure of the ho

19、se assembly as given in the relevant hose product specification and apply the flames as described in6.2 and6.3 whilst examining closely for leaks. Continue applying the flames until a leakage or failure occurs or until the minimum time to failure as specified in the relevant hose product specificati

20、on has been exceeded. 6.2 Details of flame applied to hose Place the nozzle of the burner50mm2mm from the surface of the hose, approximately equidistant from each end with the flame directed radially onto the outer periphery of the hose. 6.3 Details of flame applied to end fitting Position the nozzl

21、e of the burner 50mm 2mm from the surface of the hose with the flame directed radially on the outside of the bend and onto the junction of the hose and the vibrated end fitting. Repeat tests described in6.1 to6.3 on a second assembly. 7 Test report The test report shall include the following informa

22、tion. a) A reference to this method of test, i.e.BS5173-103.13. b) A full description of the hose and hose assembly and its origin. c) The dimensions of the test piece. d) The test pressure. e) The test fluid used. f) The minimum bend radius. g) If applicable, the time at which the hose assembly per

23、mitted the leakage of test fluid or a statement that the minimum time to failure was exceeded. h) If applicable, the location at which the hose assembly permitted the leakage of the test fluid.2 blankBS5173-103.13:1994 BSI 07-1999 List of references (seeclause 2) Normative references BSI standards p

24、ublications BRITISH STANDARDS INSTITUTION, London BS 903, Physical testing of rubber. BS 903-A35:1985, Temperatures, humidities and times for conditioning and testing of test pieces. BS 3G 100, Specification for general requirements for equipment for use on aircraft. BS 3G 100-2, All equipment. BS 3

25、G 100-2.3, Environmental conditions. BS 3G 100-2.3.13:1973, Resistance to fire in designated fire zones. BS 5173-103.13: 1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK vi

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