1、BS EN ISO3861:2008ICS 25.220.10; 83.140.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRubber hoses for sandand grit blasting Specification (ISO3861:2005)This British Standard was published under theauthority of the StandardsPolicy and StrategyCommittee on 28
2、 February 2009 BSI 2009ISBN 978 0 580 57641 6Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 3861:2008National forewordThis British Standard is the UK implementation of EN ISO 3861:2008. Itis identical to ISO 3861:2005. It supersedes BS EN ISO 3861:1997 whichis withdrawn.The UK
3、participation 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 be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions
4、of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 3861November 2008ICS 25.220.10; 83.140.40 Supersedes EN ISO 3861:1997 English VersionRubber hoses for
5、 sand and grit blasting - Specification (ISO3861:2005)Tuyaux en caoutchouc pour sablage et grenaillage -Spcifications (ISO 3861:2005)This European Standard was approved by CEN on 29 October 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions
6、for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three officia
7、l versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belg
8、ium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR ST
9、ANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 3861:2008: EBS EN ISO 3861:2008EN ISO 3861:2008
10、(E) 3 Foreword The text of ISO 3861:2005 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 3861:2008 by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assem
11、blies” 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 May 2009, and conflicting national standards shall be withdrawn at the latest by May 2009. Attention
12、 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 document supersedes EN ISO 3861:1997. According to the CEN/CENELEC Internal Regulations, t
13、he national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, N
14、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 3861:2005 has been approved by CEN as a EN ISO 3861:2008 without any modification. BS EN ISO 3861:2008ISO 3861:2005(E) ISO 2005 All rights reserved iiiContents
15、Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Classification. 2 5 Materials and construction 2 6 Dimensions 2 6.1 Internal diameters and tolerances. 2 6.2 Concentricity . 3 6.3 Tolerance on length 3 6.4 Minimum thickness of lining and cover 3 7 Physical propertie
16、s . 3 7.1 Rubber compounds 3 7.2 Finished hoses 3 8 Marking. 4 BS EN ISO 3861:2008ISO 3861:2005(E) iv ISO 2005 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Intern
17、ational 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 liaison with
18、 ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical
19、 committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to
20、the possibility that some 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. ISO 3861 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and pl
21、astics). This third edition cancels and replaces the second edition (ISO 3861:1995), which has been technically revised. BS EN ISO 3861:2008INTERNATIONAL STANDARD ISO 3861:2005(E) ISO 2005 All rights reserved 1Rubber hoses for sand and grit blasting Specification WARNING Persons using this Internati
22、onal Standard should be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national r
23、egulatory conditions. 1 Scope This International Standard specifies the requirements for rubber hoses for wet and dry sand and grit blasting, suitable for use up to a maximum working pressure of 6,3 bar and over an operating temperature range of 25 C to +70 C. 2 Normative references The following re
24、ferenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 37, Rubber, vulcanized or thermoplastic Determination of tens
25、ile stress-strain properties ISO 188:1998, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests ISO 1307, Rubber and plastics hoses for general-purpose industrial applications Bore diameters and tolerances, and tolerances on length ISO 1402, Rubber and plastics hoses and
26、hose assemblies Hydrostatic testing ISO 1746:1998, Rubber or plastics hoses and tubing Bending tests ISO 4649:2002, Rubber, vulcanized or thermoplastic Determination of abrasion resistance using a rotating cylindrical drum device ISO 4671, Rubber and plastics hoses and hose assemblies Methods of mea
27、surement of dimensions ISO 4672:1997, Rubber and plastics hoses Sub-ambient temperature flexibility tests ISO 7326:1991, Rubber and plastics hoses Assessment of ozone resistance under static conditions ISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance ISO
28、 8033, Rubber and plastics hoses Determination of adhesion between components ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions in ISO 8330 apply. BS EN ISO 3861:2008ISO 3861:2005(E) 2 ISO 2005 All
29、rights reserved4 Classification Hoses are designated as one of the following grades depending on their electrical properties: a) Electrically bonded Designated and marked “M” grade. b) Electrically conductive, using a conductive rubber layer Designated and marked “” grade. 5 Materials and constructi
30、on The hose shall consist of: a rubber lining; a reinforcement of natural or synthetic textile, applied by any suitable technique; a rubber cover. Depending on the grade, the construction may contain a conductive rubber layer or a bonding wire or wires consisting of at least nine strands of a metal
31、having a high resistance to fatigue. The lining and cover shall be of uniform thickness, concentric to comply with the minimum thickness specified and free from holes, porosity and other defects. The cover finish may be smooth or fabric-marked. 6 Dimensions 6.1 Internal diameters and tolerances When
32、 measured in accordance with ISO 4671, the internal diameters and their tolerances shall conform to the values specified in Table 1. Table 1 Internal diameters and tolerances Internal diameter mm Tolerance mm 12,5 0,75 16 0,75 19 0,75 20 0,75 25 1,25 31,5 1,25 38 1,50 40 1,50 45 1,50 50 1,50 51 1,50
33、 BS EN ISO 3861:2008ISO 3861:2005(E) ISO 2005 All rights reserved 36.2 Concentricity When determined in accordance with ISO 4671, the concentricity, based on a total indicator reading between the internal diameter and the outside surface of the cover, shall be no greater than 1,0 mm. 6.3 Tolerance o
34、n length When measured in accordance with ISO 4671, the tolerance on cut lengths shall be as specified in ISO 1307. 6.4 Minimum thickness of lining and cover When measured in accordance with ISO 4671, the minimum thickness of the rubber lining shall be 5,0 mm and that of the cover 1,0 mm. 7 Physical
35、 properties 7.1 Rubber compounds When tested by the methods listed in Table 2, the physical properties of the compounds used for the lining and cover shall conform to the values specified in Table 2. Tests shall be carried out either on samples taken from the hose or from separately vulcanized sheet
36、s 2 mm thick for the tensile/elongation tests and thicker for the abrasion test. These shall be vulcanized to the same state of cure as production hoses. Table 2 Physical properties of thermoplastic materials Requirements Property Lining Cover Test method Minimum tensile strength 14,0 MPa 10,0 MPa I
37、SO 37 (dumb-bell test piece) Minimum elongation at break 400 % 300 % ISO 37 (dumb-bell test piece) 25 % 25 % Resistance to ageing: Change in tensile strength from original value (max.) Change in elongation at break from original value (max.) between +10 % and 30 % between +10 % and 30 % ISO 188:1998
38、 (3 days at 70 C 1 C), air-oven method;ISO 37 (dumb-bell test piece) Abrasion resistance (maximum loss) 140 mm3N/A ISO 4649:2002, method A 7.2 Finished hoses When measured by the methods listed in Table 3, the physical properties of finished hoses shall conform to the values specified in Table 3. BS
39、 EN ISO 3861:2008ISO 3861:2005(E) 4 ISO 2005 All rights reservedTable 3 Physical properties of finished hoses Property Requirements Test method Proof pressure 12,5 bar ISO 1402 Change in length at proof pressure 8 % ISO 1402 Change in diameter at proof pressure 10 % ISO 1402 Twist at proof pressure
40、20 /m (max.) ISO 1402 Minimum burst pressure 25 bar ISO 1402 Adhesion between components 2,0 kN/m (min.) ISO 8033 Ozone resistance No cracking observed under 2 magnification ISO 7326:1991, method 1 up to 25 mm ID method 2 or 3 for other sizes Flexibility at 23 C T/D not less than 0,8 ISO 1746:1998,
41、method A Low-temperature flexibility No cracks shall be detected and the hose shall pass the proof test specified above. ISO 4672:1997, method B, at 25 C 2 C Electrical resistance (max.) “M” grade: 102/length “” grade: 106/length ISO 8031 8 Marking The hose shall be continuously and durably marked w
42、ith the following minimum information: a) the manufacturers name or identification; b) the number and year of publication of this International Standard; c) the hose grade (“M” or “”); d) the internal diameter, in millimetres; e) the maximum working pressure, in bars; f) the quarter and year of manu
43、facture. EXAMPLE MAN/ISO 3861:2005/Grade “M”/25/6,3 bar/1Q05 BS EN ISO 3861:2008BS EN ISO3861:2008BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing Bri
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