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1、BRITISH STANDARD BS EN ISO 8580:1995 Rubber and plastics hoses Determination of ultra-violet resistance under static conditions The European Standard EN ISO 8580:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Cop
2、y, (c) BSI BS EN ISO 8580:1995 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 03-2000 The following BSI references relate to the work on this standa
3、rd: Committee reference RUM/9 Draft for comment 85/40873 DC ISBN 0 580 16976 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Rubber Standards Committee (RUM/-) to Technical Committee RUM/9, upon which the following bodies were represen
4、ted: Association of Metropolitan Authorities British Coal Corporation British Compressed Gases Association British Gas plc British Railways Board British Rubber Manufacturers Association Chief and Assistant Chief Fire Officers Association Fire Extinguishing Trades Association Home Office Institution
5、 of Fire Engineers Institution of Production Engineers Liquefied Petroleum Gas Industry Technical Association (UK) London Fire and Civil Defence Authority London Regional Transport Malaysian Rubber Producers Research Association Ministry of Defence Society of Motor Manufacturers and Traders Limited
6、The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Fluid Power Association Energy Industries Council Engineering Equipment and Materials Users Association Amendments issued since publication Amd. No.Date of issueComments 8665July 199
7、5Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 8580:1995 BSI 03-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 0Introduction3 1Scope and field of a
8、pplication3 2References3 3Apparatus3 4Test pieces3 5Conditioning of test pieces3 6Test conditions3 7Procedure4 8Test report4 Figure 1 Arrangement for mounting hose on mandrel for Method 15 Figure 2 Test piece holder for Method 26 Figure 3 Test piece holder for Method 37 Publications referred toInsid
9、e back cover Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 8580:1995 ii BSI 03-2000 National foreword This Section of BS 5173, prepared under the direction of the Rubber Standards Committee, is an additional part of the revision
10、of BS 5173-6:1977. The remainder of the 1977 edition 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 BS 5173, as described in BS 5173-100. In 1995 the European Committee for Standardization (CEN) accepted ISO 8580:1987 as European Stan
11、dard EN ISO 8580:1995. As a consequence of implementing the European Standard this British Standard is renumbered as BS EN ISO 8580:1995 and any reference to BS 5173-106.4:1989 should be read as a reference to BS EN ISO 8580:1995. This Section of BS 5173 is identical with ISO 8580:1987 “Rubber and p
12、lastics hoses Determination of ultra-violet resistance under static conditions”, published by the International 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 devi
13、ation. Some terminology and certain conventions are not identical with those used in British Standards; 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.
14、Wherever the words “International Standard” appear, referring to this standard, they should be read as “Section of BS 5173”. Additional information. For the use of artificial light sources, attention is drawn to BS 903 “Methods of testing vulcanized rubber” Part A54:1988 “Methods for exposure to art
15、ificial light, for use in determining resistance to weathering”. This Part is identical with ISO 4665-3:1987. Methods for the determination of changes in the properties of the vulcanized rubber are given in BS 903-A55:1988 “Methods for assessment of changes in properties after exposure to natural we
16、athering or artificial light, for use in determining resistance to weathering”. This Part is identical with ISO 4665-1:1985. Textual error. When adopting the text of the International Standard, the textual error given below was discovered. It has been marked in the text and has been reported to ISO
17、in a proposal to amend the text of the International Standard. In Clause 6 the last sentence should read “Unless otherwise specified in the relevant hose specification, the elongation of the test piece shall be 20 % 10 % of the measured value.” Cross-references International StandardCorresponding Br
18、itish Standard ISO 291:1977BS 2782 Methods of testing plastics Part 0:1982 Introduction (Appendix A, identical) ISO 471:1983BS 903 Methods of testing vulcanized rubber Part A35:1985 Temperatures, humidities and times for conditioning and testing of test pieces (Identical) ISO 4892:1981BS 2782 Method
19、s of testing plastics Part 5 Optical and colour properties, weathering Method 540B:1982 Methods of exposure to laboratory light sources, (xenon arc lamp, enclosed carbon arc lamp, open-flame carbon arc lamp, fluorescent tube lamps) (Identical) Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 1
20、5:51:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 8580:1995 BSI 03-2000iii 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 British Standard does not of it
21、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, the EN ISO title page, pages 2 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incor
22、porated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Copy, (c)
23、 BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8580 February 1995 ICS 23.040.70 Descriptors: Rubber hoses, plastic hoses, hoses, radiation resistance, ultraviolet radiation tests English version Rubber and plastics hoses Determination of ultra-violet resistance under static conditions
24、 (ISO 8580:1987) Tuyaux en caoutchouc et en plastique Dtermination de la rsistance aux ultraviolets dans des conditions statiques (ISO 8580:1987) Gummi- und Kunststoffschluche Bestimmung der UV-Bestndigkeit unter statischen Bedingungen (ISO 8580:1987) This European Standard was approved by CEN on 19
25、95-02-06. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obt
26、ained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Sec
27、retariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committ
28、ee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 Copyright reserved to all CEN members Ref. No. EN ISO 8580:1995 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontr
29、olled Copy, (c) BSI EN ISO 8580:1995 BSI 03-2000 2 Foreword This European Standard has been taken over by the Technical Committee CEN/TC 218, Rubber and plastics hoses and hose assemblies, from the work of ISO/TC 45, Rubber and rubber products, of the International Organization for Standardization (
30、ISO). This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 1995, and conflicting national standards shall be withdrawn at the latest by August 1995. In accordance with the CEN/CENELEC Internal R
31、egulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, n
32、a, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 8580:1995 BSI 03-20003 0 Introduction The test method described in this International Standard provides a means of assessing the resistance of hoses to the deleterious effects of ultra-violet light under static conditions. 1 Sc
33、ope and field of application This International Standard specifies three methods for determining the resistance of the outer cover of hoses to ultra-violet light: Method 1: for bore sizes up to and including 25 mm, the test being carried out on the hose itself; Method 2: for bore sizes greater than
34、25 mm, the test being carried out on a test piece from the hose wall; Method 3: for bore sizes greater than 25 mm, the test being carried out on a test piece from the hose cover. Method 1 or 2 should normally be used. Method 3 should be used only if it is not possible to carry out the test in accord
35、ance with Method 2. 2 References ISO 291, Plastics Standard atmospheres for conditioning and testing. ISO 471, Rubber Standard temperatures, humidities and times for the conditioning and testing of test pieces. ISO 4892, Plastics Methods of exposure to laboratory light sources. 3 Apparatus 3.1 Test
36、cabinet containing an array of fluorescent tube lamps as described in ISO 4892, Annex D, to cover the test piece and the test piece holder. The cabinet shall be fitted with temperature and humidity controls to maintain a constant environment of between 50 and 80 C to an accuracy of 3 C and 35 % to 9
37、0 % relative humidity to an accuracy of 5 %. NOTEMost ultra-violet irridiation sources have a limited life after which the intensity of the radiation decreases. Care should be taken to ensure that the life of operation of the fluorescent lamp is recorded and that the unit is rotated in accordance wi
38、th ISO 4892, Annex D, subclause D.3.1, and is replaced after the useful life has expired. All apparatus placed in the test cabinet shall be fabricated from materials which do not absorb or react to ultra-violet light. 3.2 Test piece holder, as shown in Figure 1, for Method 1. 3.3 Test piece holder,
39、as shown in Figure 2, for Method 2. 3.4 Test piece holder, as shown in Figure 3, for Method 3. 4 Test pieces 4.1 Type of test piece 4.1.1 Method 1 The test piece shall consist of a sample of hose. The length shall be calculated from the equation where Lis the length of the test piece; Dis the diamet
40、er of the mandrel (see Figure 1) necessary to produce the required elongation of the test piece (see clause 6), the elongation being measured over a minimum length of 10 d; dis the outside diameter of the hose under test. 4.1.2 Method 2 The test piece shall consist of a strip cut longitudinally from
41、 the hose. The strip shall be 150 mm long and 25 mm wide. 4.1.3 Method 3 The test piece shall consist of a strip of the hose cover, removed longitudinally from the hose. The strip shall be 100 mm long and 25 mm wide. 4.2 Number of test pieces Two test pieces shall be tested. 5 Conditioning of test p
42、ieces Prior to testing, condition the test pieces, mounted as described in clause 7, at the applicable standard condition as specified in ISO 471 or ISO 291 as appropriate, in darkness or subdued light. 6 Test conditions Unless other conditions are specified in the relevant hose specification, expos
43、e the test piece under test to ultra-violet light with a wavelength of 290 to 400 nm at an irradiance level of 50 W/m2 5 %, at a temperature of 70 3 C and a relative humidity of 50 % to 55 % for 500 4 h. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 15:51:39 GMT+00:00 2006, Uncontrolled Cop
44、y, (c) BSI EN ISO 8580:1995 4 BSI 03-2000 Unless otherwise specified in the relevant hose specification, the elongation of the test piece shall be 20 % 10 %.1) 7 Procedure 7.1 Method 1 7.1.1 Mount the test piece as shown in Figure 1. 7.1.2 Adjust the atmosphere within the test cabinet to 70 3 C and
45、50 % to 55 % relative humidity. 7.1.3 Place the assembly in the test cabinet and expose it to the effects of the irradiation source for 500 4 h. 7.1.4 Remove the mandrel and test piece from the test cabinet. Remove the test piece from the test mandrel and straighten the hose into its natural positio
46、n. Replace the test piece on the test mandrel and examine the surface of the test piece under X 2 magnification. Record the nature and position of any cracking or change in colour or appearance observed. 7.2 Method 2 7.2.1 Mount the test piece in a test piece holder as shown in Figure 2, place the a
47、ssembly in the test cabinet and expose it to the effects of the irradiation source for 500 4 h. 7.2.2 Remove the test piece holder and test piece from the test cabinet. Remove the test piece from the test piece holder and straighten the test piece into its natural position. Replace the test piece in
48、 the test piece holder and examine the surface of the test piece under X 2 magnification. Record the nature and position of any cracking or change in colour or appearance observed. 7.3 Method 3 7.3.1 Mount the test piece in the test piece holder (see Figure 3) in the test cabinet, apply the appropri
49、ate elongation and expose it to the effects of the irradiation source for 500 4 h. 7.3.2 Remove the test piece holder and the test piece from the test cabinet. Remove the test piece from the test piece holder and allow the test piece to return to its natural length for 1 min. Replace the test piece in the test piece holder, apply the appropriate elongation and examine the surface of the test piece under X 2 magnification. Record the nature and position of any cracking or change in colour or appearance observed. 8 Test