1、October 2014 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 83.140.40; 23.040.70; 75.200!%;*“2242407www.din.deDDIN EN ISO 6808Plastics hoses and hose assemblies for suction and low-pressuredischarge of petroleum liquids Specification (ISO 6808:2014);English version EN ISO 6808:2014,English translation of DIN EN ISO 6808:2014-10Kunststoffschluche und Schlau
3、chleitungen fr das Ansaugen und Frdern vonFlssigkeiten aus Erdl bei niedrigem Druck Spezifikation (ISO 6808:2014);Englische Fassung EN ISO 6808:2014,Englische bersetzung von DIN EN ISO 6808:2014-10Tuyaux et flexibles en plastique pour aspiration et refoulement basse pression desliquides ptroliers Sp
4、cifications (ISO 6808:2014);Version anglaise EN ISO 6808:2014,Traduction anglaise de DIN EN ISO 6808:2014-10SupersedesDIN EN ISO 6808:2000-11www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 22 pages09.14 DIN EN ISO 6808:2014-10 2 A comma
5、 is used as the decimal marker. National forewordThis document (EN ISO 6808:2014) has been prepared by Technical Committee ISO/TC 45 “Rubber andrubber products” in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and hoseassemblies” (Secretariat: BSI, United Kingdom), Wor
6、king Group WG 1 “Rubber and plastics hoses and hoseassemblies for industrial, chemical and petrochemical applications” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Tankanlagen (DIN Standards Committee Tank Installations), Working Co
7、mmittee NA 104-02-01 AA Schlauchleitungen. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 176 DIN EN ISO 176 ISO 527-3 DIN EN ISO 527-3 ISO 868 DIN EN ISO 868 ISO 1307 DIN EN ISO 1307 ISO 1402 DIN EN ISO 1402 ISO 1817 DIN ISO 1817 ISO
8、7233 DIN EN ISO 7233 ISO 7751 DIN EN ISO 7751 ISO 8031 DIN EN ISO 8031 ISO 8330 DIN EN ISO 8330 ISO 8331 DIN EN ISO 8331 ISO 10619-1 DIN EN ISO 10619-1 ISO 10619-2 DIN EN ISO 10619-2 ISO 23529 DIN ISO 23529 Amendments This standard differs from DIN EN ISO 6808:2000-11 as follows: a) throughout the d
9、ocument, “nominal bore” has been replaced by “hose size”; b) throughout the document, “ISO 1817 oil No. 3” has been replaced by “IRM 903 oil”; c) ISO 471, ISO 1746 and ISO 4672 have been replaced by ISO 23529, ISO 10619-1, and ISO 10619-2, respectively; d) Clause 3 “Terms and definitions” has been a
10、dded; e) type 1 and type 2 maximum working pressures at 45 C have been corrected; f) hose construction for electrical bonding has been updated; g) in Tables 4 and 5, note b has been added; h) in Subclause 7.2 and Table 5, “55 C” has been changed to “45 C”; i) in Subclause 9.3, electrical bonding has
11、 been redefined; j) Subclause 9.4 “Electrical wall resistance” has been added; k) Clause 10 “Frequency of testing” has been added; l) Clause 11 “Type tests” has been added; m) Annex A (normative) “Test frequency” has been added; n) Annex B (informative) “Production tests” has been added. Previous ed
12、itions DIN EN ISO 6808: 2000-11 DIN EN ISO 6808:2014-10 3 National Annex NA (informative) Bibliography DIN EN ISO 176, Plastics Determination of loss of plasticizers Activated carbon method DIN EN ISO 527-3, Plastics Determination of tensile properties Part 3: Test conditions for films and sheets DI
13、N EN ISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness) DIN EN ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses DIN EN ISO 1402, Rubber and plastics hoses and hose ass
14、emblies Hydrostatic testing DIN ISO 1817, Rubber, vulcanized Determination of the effect of liquids DIN EN ISO 7233, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuum DIN EN ISO 7751, Rubber and plastics hoses and hose assemblies Ratios of proof and burst pressure t
15、o maximum working pressure DIN EN ISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivity DIN EN ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary DIN EN ISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for se
16、lection, storage, use and maintenance DIN EN ISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperature DIN EN ISO 10619-2, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests
17、 at sub-ambient temperatures DIN ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods DIN EN ISO 6808:2014-10 4 This page is intentionally blank EN ISO 6808July 2014 ICS 83.140.40; 75.200 Supersedes EN ISO 6808:2000English Version Plastics hoses a
18、nd hose assemblies for suction and low-pressure discharge of petroleum liquids - Specification(ISO 6808:2014) Tuyaux et flexibles en plastique pour aspiration et refoulement basse pression des liquides ptroliers - Spcifications (ISO 6808:2014) Kunststoffschluche und Schlauchleitungen fr das Ansaugen
19、 und Frdern von Flssigkeiten aus Erdl bei niedrigem Druck - Spezifikation (ISO 6808:2014) This European Standard was approved by CEN on 28 May 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status o
20、f a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German
21、). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia,
22、Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
23、 Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6808:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE
24、FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMContents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references. 5 3 Terms and definitions 6 4 Classification Hose types . 6 5 Construction and materials Requirements . 6 6 Dimensions and tolerances 6 6.1 Diameter 6 6.2 Length .
25、 7 7 Physical properties of finished hoses . 7 7.1 Hydrostatic requirements at standard laboratory temperature 7 7.2 Hydrostatic requirements at 45 C . 7 7.3 Change in length (Type 2 only) . 8 7.4 Suction resistance . 8 7.5 Reinforcement fracture 8 7.6 Minimum bend test . 9 7.7 Cold bend test 9 7.8
26、Electrical continuity . 9 8 Physical properties of the flexible thermoplastics material 9 8.1 Loss in mass on heating . 9 8.2 Tensile strength and elongation at break 9 8.3 Fuel resistance . 10 8.4 Oil resistance 10 8.5 Resistance to accelerated ageing 10 9 Hose assemblies 11 9.1 Couplings and metho
27、d of attachment 11 9.2 Test for security of coupling . 11 9.3 Electrical bonding 11 9.4 Electrical wall resistance . 11 10 Frequency of testing 11 11 Type tests 12 12 Marking 12 12.1 Hoses . 12 12.2 Hose assemblies 12 Annex A (normative) Test frequency . 13 Annex B (informative) Production tests 14
28、Annex C (normative) Reinforcement fracture test . 15 Annex D (normative) Coupling security test . 17 Bibliography 18 2DIN EN ISO 6808:2014-10 EN ISO 6808:2014 (E) ForewordThis document (EN ISO 6808:2014) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in collaboration
29、 with 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 identical text or by endorsement, at the latest by January 2015, and conf
30、licting national standards shall be withdrawn at the latest by January 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This docu
31、ment supersedes EN ISO 6808:2000. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav
32、Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 6808:2014 has been
33、 approved by CEN as EN ISO 6808:2014 without any modification. 3DIN EN ISO 6808:2014-10EN ISO 6808:2014 (E)IntroductionThis International Standard has been prepared to provide minimum acceptable requirements for the satisfactory performance of polymer-reinforced thermoplastics hoses for suction and
34、discharge applications, conveying kerosene, heating oil, diesel fuel, and lubricating oils. These hoses are neither suitable for conveying automotive or aviation fuel nor suitable for metered delivery of any liquid.The list of hose sizes given in Tables 1 and 2 is not intended to be restrictive and
35、will not preclude the manufacture of sizes outside the preferred-number range (the basis of the tables) and which might be the subject of individual national standards.4DIN EN ISO 6808:2014-10 EN ISO 6808:2014 (E) WARNING Persons using this International Standard should be familiar with normal labor
36、atory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.1 ScopeThis
37、International Standard specifies the requirements for two types of polymer-reinforced thermoplastics hose and hose assembly for suction and discharge applications with kerosene, heating oil, diesel fuel, and lubricating oils in the temperature range 10 C to +45 C.NOTE The hoses can be stored in a st
38、atic condition at 30 C to +65 C without damage by climatic conditions.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated reference
39、s, the latest edition of the referenced document (including any amendments) applies.ISO 176:2005, Plastics Determination of loss of plasticizers Activated carbon methodISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance testsISO 527-3, Plastics Determination of tensil
40、e properties Part 3: Test conditions for films and sheetsISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness)ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hosesISO 1402, Ru
41、bber and plastics hoses and hose assemblies Hydrostatic testingISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquidsISO 7233, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO 7751, Rubber and plastics hoses and hose assemblies Rati
42、os of proof and burst pressure to maximum working pressureISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivityISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 10619-1, Rubber and plastics hoses and tubing Measurement of
43、flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 10619-2:2011, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperaturesISO 23529, Rubber General procedures for preparing and conditioning test pieces for p
44、hysical test methods5DIN EN ISO 6808:2014-10EN ISO 6808:2014 (E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 Classification Hose typesTwo types of hose are specified, differentiated by the maximum working pressure as follows: Type 1: f
45、or light service, having a maximum working pressure of 0,3 MPa (3 bar) at 23 C 2 C and 0,07 MPa (0,7 bar) at 45 C 2 C; Type 2: for normal service, having a maximum working pressure of 0,55 MPa (5,5 bar) through hose size 25 and 0,4 MPa (4 bar) above hose size 25 through hose size 50 at 23 C 2 C. All
46、 sizes have a maximum working pressure of 0,15 MPa (1,5 bar) at 45 C 2 C.5 Construction and materials RequirementsThe hoses shall be as uniform as commercially practicable in colour, opacity, and other physical properties. Flexible thermoplastics materials shall be supported inside the material by a
47、 helix of polymeric material of a similar molecular structure. The reinforcing and flexible components of the wall shall be fused and free from visible cracks, porosity, foreign inclusions, or other defects causing the hose to be unserviceable. Hose assemblies shall be electrically bonded between co
48、uplings. The hose construction shall include at least two flexible metallic bonding wires (with or without a metallic helix) incorporated in the hose between the cover and the lining and shall be bonded to the metal couplings. Refer to 9.3 for testing and requirements for electrical bonding.The meth
49、od of ensuring initial electrical continuity shall be the responsibility of the manufacturer and shall be carried out to the satisfaction of the user.6 Dimensions and tolerances6.1 DiameterThe hose size and the internal diameter and tolerances shall be in accordance with the values given in Tables 1 and 2, which are in accordance with ISO 1307.Table 1 Diameters and t
