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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1761:1999 The Europ
2、ean Standard EN 1761:1999 has the status of a British Standard ICS 23.040.70; 75.200 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Rubber hoses and hose assemblies for fuel truck delivery Specification Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:48:18 GMT+00:00
3、 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 1999 BSI 06-1999 ISBN 0 580 32447 8 BS EN 1761:1999 Ame
4、ndments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 1761:1999. The UK participation in its preparation was entrusted by Technical Committee PRI/66, Rubber and plastics tubing, hoses and hose assemblies, to Subcommittee P
5、RI/66/1, Industrial, chemical and petrochemical applications, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related interna
6、tional and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be foun
7、d in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are
8、 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 front cover, the EN title page, pages 2 to 9 and a back cover. Licensed Copy: sheffieldun sheffi
9、eldun, na, Sun Oct 29 09:48:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by an
10、y means reserved worldwide for CEN national Members. Ref. No. EN 1761:1999 E EUROPEAN STANDARDEN 1761 NORME EUROPE ENNE EUROPA ISCHE NORM February 1999 ICS 23.040.70; 75.200 English version Rubber hoses and hose assemblies for fuel truck delivery Specification Tuyaux et flexibles en caoutchouc pour
11、la livraison dhydrocarbures liquides par camions-citernes Spe cification Gummischla uche und schlauchleitungen fu r Tankwagen Spezifikation This European Standard was approved by CEN on 6 August 1999. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condi
12、tions 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 obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three
13、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 Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austr
14、ia, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:48:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2
15、 EN 1761:1999 BSI 06-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 218, Rubber and plastics hoses and hose assemblies, the Secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an
16、identical text or by endorsement, at the latest by August 1999, and conflicting national standards shall be withdrawn at the latest by August 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
17、Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard is based on ISO 2929, BS 3492 and the German military standard VG 95955. Content
18、s Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Types3 5Materials and construction3 6Dimensions4 7Physical properties4 8Test for security of coupling attachment4 9Electrical resistance5 10Application of tests5 11Marking7 Annex A (normative) Test method for adhesion between components8
19、 Annex B (normative) Test method for flexibility at 20 8C8 Annex C (normative) Test method for flammability8 Annex D (normative) Test method for security of coupling attachment9 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:48:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1761:
20、1999 BSI 06-1999 1 Scope This European Standard specifies the requirements for two types of rubber hoses and rubber hose assemblies for loading and discharge of liquid hydrocarbon fuels with a maximum working pressure of 10 bar (1,0 MPa). Both types of hose are designed for: a) use with hydrocarbon
21、fuels, having an aromatic hydrocarbon content not exceeding 50 % by volume and containing oxygenated compounds up to 15 %; b) operation within the temperature range of 230 8C to +70 8C, undamaged by climatic conditions of 250 8C to 70 8C when stored in static conditions. NOTEHoses for use at tempera
22、tures lower than 230 8C should be the subject of discussion between manufacturer and end users. This standard is not applicable to hoses and hose assemblies for LPG, aviation fuel systems, fuel station systems and marine applications. 2 Normative references This European Standard incorporates by dat
23、ed or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard
24、 only when incorporated by amendment or revision. For undated references latest edition of the publication referred to applies. EN 21746, Rubber or plastics hoses and tubing Bending test. (ISO 1746:1983) EN 24671, Rubber and plastics hoses and hose assemblies Methods of measurements of dimensions. (
25、ISO 4671:1984) EN 24672, Rubber and plastics hoses Sub-ambient temperature flexibility tests. (ISO 4672:1988) EN 27326, Rubber and plastics hoses Assessment of ozone resistance under static conditions. (ISO 7326:1991) EN 28033, Rubber and plastics hose Determination of adhesion between components. (
26、ISO 8033:1991) EN ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing. (ISO 1402:1994) EN ISO 7233, Rubber and plastic hoses and hose assemblies Determination of suction resistance. (ISO 7233:1991) EN ISO 8031, Rubber and plastics hoses and hose assemblies Determination of el
27、ectrical properties. (ISO 8031:1993) ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties. ISO 188, Rubber, vulcanized Accelerated ageing or heat-resistance tests. ISO 1817:1985, Rubber, vulcanized Determination of the effect of liquids. ISO 4649, Rubber Dete
28、rmination of abrasion resistance using a rotating cylindrical drum device. ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary. 3 Definitions For the purposes of this standard, the definitions given in ISO 8330 apply. 4 Types Hoses shall be one of the following types: a) type D: deliv
29、ery hose; b) type SD: suction and delivery hose, helix reinforced. Both these types can be either: 1) electrically bonded, designated and marked M type; or 2) electrically conductive, using a conductive rubber layer, designated and marked V type. 5 Materials and construction If mandrel built, partic
30、ulate type, release agents shall not be used. The hose shall be uniform in quality and free from porosity, air holes, foreign inclusions and other defects. The hose shall consist of the following: a) a lining of synthetic rubber resistant to hydrocarbon fuels; b) a reinforcement of layers of woven,
31、braided or spirally wound textile material; c) an embedded helix reinforcement (type SD only); d) two or more low resistance electrical bonding wires (type M only); e) an outer cover of synthetic rubber, resistant to abrasion, outdoor exposure and hydrocarbon fuels. Licensed Copy: sheffieldun sheffi
32、eldun, na, Sun Oct 29 09:48:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1761:1999 BSI 06-1999 Table 1 Dimensions Nominal boreInternal diameter ToleranceOutside diameter ToleranceMinimum external diameter of reeling drum used in service Minimum bend radius mmmmmmmmmmmm 1919,0 0,5 31,0 1,0
33、 250125 2525,037,0300150 3232,044,0350175 3838,051,0450225 5050,0 0,7 66,0 1,2 550275 5151,067,0550275 6363,0 0,8 79,0600300 7575,091,0700350 7676,092,0700350 100100,0116,0 1,6 450 101101,5118,0N.A450 150150,0 1,6 170,0 2,0 N.A750 NOTEOther diameters than listed in the table can be agreed with the m
34、anufacturer. N.A = not applicable. 6 Dimensions 6.1 Nominal bore, internal diameters, outside diameters, service reeling diameters, minimum bend radius When measured in accordance with EN 24671 the internal diameter and outside diameter and their tolerances shall comply with the values given in Tabl
35、e 1. When tested by the method described in EN 21746, the value of the minimum bend radius shall be as given in Table 1. 6.2 Concentricity When determined in accordance with EN 24671, the concentricity, based on a total indicator reading between the internal diameter and the outside surface of the c
36、over, shall be less than or equal to 1,0 mm for hoses of nominal bore up to and including 76, and 1,5 mm for hoses of nominal bore greater than 76. 6.3 Tolerances in length The tolerance on the measured length of hose or hose assembly shall be1 %. 6.4 Minimum thickness of lining and cover The minimu
37、m thickness of the lining of all hoses shall be 1,6 mm. For hoses of nominal bore up to and including 50 the minimum thickness of the cover shall be 1,6 mm. For hoses of nominal bore greater than 50 the minimum thickness of the cover shall be 2,0 mm. 7 Physical properties 7.1 Rubber compounds The ph
38、ysical properties of the compounds used for the lining and cover shall comply with the values given in Table 2, when tested by the methods listed in Table 2. Tests shall be carried out either on samples taken from the hose or from separately vulcanized sheets. 7.2 Finished hose When tested by the me
39、thods listed in Table 3, the physical properties of the finished hose shall comply with the values given in Table 3. 8 Test for security of coupling attachment When tested in accordance with annex D hose assemblies shall show no leakage nor movement of the coupling out of the hose. There shall be no
40、 visible cuts or other damage to the hose lining. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:48:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 1761:1999 BSI 06-1999 Table 2 Physical properties of rubber compound PropertyUnitRequirementsTest methods LiningCover 1) Tensile stre
41、ngth min.MPa7,07,0ISO 37 (dumb-bell test piece) 2) Elongation at break min.%250250ISO 37 (dumb-bell test piece) 3) Swelling in fuel max.%508.2 of ISO 1817:1985, (72 h at 40 8C in liquid 3) 100ISO 1817:1985, 8.2 48 h at 40 8C in liquid B) 4) Abrasion resistance max.mm3180Method A of ISO 4649 5) Agein
42、gISO 188 Tensile strength% 3030 (7 days at 70 8C, air-oven method) max. change from the original value Elongation at break max. change from the original value % 3030 9 Electrical resistance Electrical resistance of hose and hose assemblies can be obtained by two methods. 1) By incorporating two low
43、resistance bonding wires into the hose construction. These shall be spirally applied and shall be positioned in such a way to cross uniformly; When attaching fittings to this hose, the bonding wires shall be folded into the hose bore, positioned between the lining and the fitting tail and extended a
44、pproximately 1/3rd of the length of the fitting tail into the bore. When tested in accordance with ISO EN 8031 the resistance along the bonding wires, in the case of hose, or the resistance between fittings, in the case of hose assemblies, shall not exceed 1 3 102V per length. When obtaining electri
45、cal continuity by this method the hose shall be marked with the symbol M. 2) Incorporating electrically conducting materials in the hose construction. When attaching fittings to this hose, an adequate connection between the end-fittings and the conductive layer shall be obtained. When tested in acco
46、rdance with ISO EN 8031, the resistance along the conductive layer, in the case of hose or the resistance between the fittings, in the case of hose assemblies, shall not exceed 1 3 106V per length. When obtaining electrical resistance by this method the hose shall be marked with the symbol V. During
47、 and after subjection to the hydrostatic tests as described in EN ISO 1402, the electrical continuity of each hose shall be maintained from end to end and electrical continuity of each hose assembly shall be maintained from one coupling to the other. NOTEElectrical conductivity in Type SD cannot be
48、obtained by only connecting to the helix. 10 Application of tests 10.1 Hoses The minimum test frequency for production and routine tests is given in Table 4. Type approved is obtained by the manufacturers supplying evidence that all requirements of this standard are met by his method of manufacture
49、and hose design. The tests shall be repeated at a maximum of five year intervals, or whenever a change in the method of manufacture or materials used, occurs. Production acceptance tests are carried out on a batch basis. Routine tests are carried out on each finished length of hose. 10.2 Hose assemblies If a statutory test frequency is not specified, the end user shall establish this test frequency, taking into account the operation conditions. This shall generally be six months, but no longer than o
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