EN ISO 6806-2014 en Rubber hoses and hose assemblies for use in oil burners - Specification《用于油燃烧器的橡胶软管和软管组合件 规范(ISO 6806 2014)》.pdf

1、BSI Standards PublicationBS EN ISO 6806:2014Rubber hoses and hoseassemblies for use in oilburners SpecificationBS EN ISO 6806:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 6806:2014.It supersedes BS EN ISO 6806:1996 which is withdrawn.The UK participa

2、tion in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hoseassemblies.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a cont

3、ract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 82827 0ICS 27.060.10; 83.140.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published unde

4、r the authority of theStandards Policy and Strategy Committee on 30 September 2014.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6806 September 2014 ICS 83.140.40; 27.060.10 Supersedes EN ISO 6806:1995English Version Rubber hoses and ho

5、se assemblies for use in oil burners - Specification (ISO 6806:2014) Tuyaux et fexibles en caoutchouc pour brleurs - Spcifications (ISO 6806:2014) Gummischluche und Schlauchleitungen fr den Einsatz in lbrennern - Anforderung (ISO 6806:2014) This European Standard was approved by CEN on 7 June 2014.

6、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 obtained on a

7、pplication to the CEN-CENELEC Management Centre 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 CEN-CENELEC

8、 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

9、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue

10、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 6806:2014 EBS EN ISO 6806:2014EN ISO 6806:2014 (E) 3 Foreword This document (EN ISO 6806:2014) has been prepared by Technical Committee ISO/TC 45 “

11、Rubber and rubber products” in collaboration 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 endorsem

12、ent, at the latest by March 2015, and conflicting national standards shall be withdrawn at the latest by March 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

13、any or all such patent rights. This document supersedes EN ISO 6806:1995. 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, Den

14、mark, 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 the United Kingdom. Endorsement n

15、otice The text of ISO 6806:2014 has been approved by CEN as EN ISO 6806:2014 without any modification. BS EN ISO 6806:2014ISO 6806:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Construction 14 Dimensions and tolerances . 24.1 Inside diameter . 2

16、4.2 Bend radii 24.3 Thickness of lining and cover . 25 Physical requirements for lining and cover . 26 Physical requirements for hoses and hose assemblies 36.1 Hydrostatic tests 36.2 Oil swell . 36.3 External pressure test . 36.4 Low-temperature flexibility . 46.5 Flammability . 46.6 Ozone resistanc

17、e (cover only) . 46.7 Impulse test . 47 Frequency of testing 48 Type tests . 49 Marking 4Annex A (normative) Test frequency 5Annex B (informative) Production tests . 6Annex C (normative) Determination of oil swell . 7Annex D (normative) Determination of resistance to external pressure . 8Annex E (no

18、rmative) Determination of flammability . 9Annex F (normative) Pressure impulse test 11Bibliography .12BS EN ISO 6806:2014ISO 6806:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing

19、International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaiso

20、n with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Direct

21、ives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some

22、 of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarat

23、ions received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about

24、 ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics).This third edition cancels an

25、d replaces the second edition (ISO 6806:1992), of which it constitutes a minor revision.The following changes (mainly editorial) were made as required to bring the standard up to date. Clause 2 (Normative references) has been updated where necessary. Reference to ISO 4672 has been replaced by ISO 10

26、619-2 and the new titles of ISO 1307, ISO 1436 and ISO 4671 have been quoted. Wherever necessary the terminology has been amended to conform to ISO 8330. New Clause 7 (Frequency of testing) and Clause 8 (Type tests) have been introduced; new Annexes A and B (Tables A.1 and B.1) have been introduced

27、to standardize the frequency of the tests already required in the previous edition (ISO 6806:1992). Clause 9 (Marking) has been amended (maximum working pressure and date of publication of this International Standard to be marked on hose). No technical changes from requirements already specified in

28、the second edition (ISO 6806:1992) have been made.iv ISO 2014 All rights reservedBS EN ISO 6806:2014INTERNATIONAL STANDARD ISO 6806:2014(E)Rubber hoses and hose assemblies for use in oil burners Specification1 ScopeThis International Standard specifies the minimum requirements for rubber hoses and h

29、ose assemblies for use in oil burners.The following two types of hose assembly are specified. Type 1: Hose assemblies for flux and reflux, but not for insertion between the oil burner pump and the atomizing connection; maximum working pressure 1,0 MPa (10 bar); maximum oil temperature 100 C. Type 2:

30、 Hose assemblies for insertion between the oil burner pump and the atomizing connection; working pressure 4,0 MPa (40 bar); maximum oil temperature 100 C.NOTE The hose assemblies specified in this International Standard are not intended to be used, without special assessment, for purposes other than

31、 oil burner installations.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 references, the latest edition of the referenced docu

32、ment (including any amendments) applies.ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain propertiesISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)ISO 188, Rubber, vulcanized or thermoplastic Accelerated a

33、geing and heat resistance testsISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hosesISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 1436, Rubber hoses and hose assemblies Wire-braid-reinforced hydrau

34、lic types for oil-based or water-based fluids SpecificationISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquidsISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 7326, Rubber

35、and plastics hoses Assessment of ozone resistance under static conditionsISO 10619-2:2011, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperatures3 ConstructionHoses in accordance with this International Standard shall consist o

36、f either:a) an internally smooth rubber lining and an external corrosion-resistant metal braid; or ISO 2014 All rights reserved 1BS EN ISO 6806:2014ISO 6806:2014(E)b) an internally smooth rubber lining, a reinforcement consisting of one or more layers of textile or corrosion-resistant metal braid an

37、d a rubber outer cover.The hoses shall be fitted with permanently attached couplings.Both the couplings and the metal braid shall be provided with suitable corrosion protection. The metals used shall not have any deleterious effects on the rubber components.4 Dimensions and tolerances4.1 Inside diam

38、eterThe inside diameter of the hose shall be in accordance with the nominal dimensions and tolerances given in Table 1, which is in accordance with ISO 1307.Table 1 Nominal sizeNominal size Tolerance (mm)5 0,56,3 8 10 12,5 16 200,7525 1,254.2 Bend radiiThe hoses shall not be used at bend radii, meas

39、ured at the inside of the bend, smaller than the minimum bend radii specified in Table 2.Table 2 Minimum bend radiiNominal size Minimum bend radius (mm)5 6,3 8 10 12,5 16 20 2550 60 75 80 105 120 145 1654.3 Thickness of lining and coverWhen measured in accordance with ISO 4671, the minimum thickness

40、 of the lining and cover shall be not less than 1,7 mm and 1,3 mm, respectively.5 Physical requirements for lining and coverWhen tested in accordance with the methods of test indicated, the lining and cover shall comply with the requirements of Table 3.2 ISO 2014 All rights reservedBS EN ISO 6806:20

41、14ISO 6806:2014(E)Table 3 Physical requirements for lining and coverProperty Requirement Method of testTensile strength (lining and cover) 8,0 MPa ISO 37Elongation at break (lining and cover) 250 % min. ISO 37Accelerated ageing: ISO 188Change in tensile strength (lining and cover) 30 % max. 3 days a

42、t 100 C 1 CChange in elongation at break (lining and cover) 35 % max. 3 days at 100 C 1 COil resistance: ISO 1817Volume change:7202h in No. 3 oil lining - 5 % to + 15 % at 70 C 1 C for type 1 cover - 5 % to + 60 % at 125 C 2 C for type 2Hardness change:a lining 10 IRHD ISO 48aNo initial hardness is

43、specified, but a limit on hardness change after oil immersion is included to ensure that a lining with adequate oil resistance is employed.6 Physical requirements for hoses and hose assemblies6.1 Hydrostatic tests6.1.1 Proof pressure testWhen tested in accordance with the method specified in ISO 140

44、2 to the proof test pressure specified in Table 4, the hose assembly shall show no signs of leakage or distortion or movement of the couplings.6.1.2 Burst pressure testWhen tested in accordance with the method specified in ISO 1402, the hose assembly shall show no signs of leakage or failure before

45、the minimum burst pressure specified in Table 4 has been attained.Table 4 Hydrostatic pressure requirementsParameter Pressure requirementsType 1 Type 2MPa bar MPa barMaximum design working pressure 1,0 10 4,0 40Proof test pressure 2,0 20 8,0 80Minimum burst pressure 4,0 40 16,0 1606.2 Oil swellWhen

46、tested in accordance with the method specified in Annex C, the reduction in the inside diameter of the hose shall not exceed 10 %.6.3 External pressure testWhen tested in accordance with the method specified in Annex D, the reduction in the outside diameter of the hose shall not exceed 6 %. ISO 2014

47、 All rights reserved 3BS EN ISO 6806:2014ISO 6806:2014(E)6.4 Low-temperature flexibilityWhen tested in accordance with method B of ISO 10619-2:2011 at a temperature of 40 C 2 C, the hose shall not crack and shall show no signs of leakage when subsequently proof pressure tested in accordance with 6.1

48、.6.5 FlammabilityWhen tested in accordance with the method specified in Annex E, the hose shall show no signs of leakage.6.6 Ozone resistance (cover only)When tested in accordance with ISO 7326, there shall be no signs of cracking.6.7 Impulse testWhen tested in accordance with the method specified i

49、n Annex F, there shall be no leakage or damage after completion of 30 000 cycles.7 Frequency of testingThe minimum frequency of testing shall conform to the schedule given in Annex A.Type tests are those tests carried out in order to verify that the hose meets all requirements of this International Standard.Routine tests are those tests carried out on each length or finished hose.Production tests are those tests carried out per batch (see schedule given in Annex B, which is for gui