1、April 2010 Translation by DIN-Sprachendienst.English price group 8No 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).ICS 2
2、3.040.70!$aZ“1625556www.din.deDDIN EN ISO 3861Rubber hoses for sand and grit blasting Specification (ISO 3861:2005)English translation of DIN EN ISO 3861:2010-04Gummischluche zum Sandstrahlen Anforderungen (ISO 3861:2005)Englische bersetzung von DIN EN ISO 3861:2010-04Tuyaux en caoutchouc pour sabla
3、ge et grenaillage Spcifications (ISO 3861:2005)Traduction anglaise de DIN EN ISO 3861:2010-04SupersedesDIN EN ISO 3861:1997-12www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 11 pages03.10 DIN EN ISO 3861:2010-04 2 A comma is used as the
4、 decimal marker. National foreword This document has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products”, (Secretariat: DSM, Malaysia), Subcommittee SC 1 “Hoses” (Secretariat: DSM, Malaysia), and has been adopted as EN ISO 3861:2008 by Technical Committee CEN/TC 218 “Rubber a
5、nd plastics hoses and hose assemblies” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Kautschuktechnik (Rubber Technology Standards Committee), Working Committee NA 045-02-12 AA Schluche. The DIN Standards corresponding to the Inte
6、rnational Standards referred to in this document are as follows: ISO 1307 DIN EN ISO 1307 ISO 1402 DIN EN ISO 1402 ISO 1746:1998 DIN EN ISO 1746:1998 ISO 4649:2002 DIN ISO 4649:2006 ISO 4671 DIN EN ISO 4671 ISO 4672:1997 DIN EN ISO 4672:1997 ISO 7326:1991 DIN EN ISO 7326:1991 ISO 8031 DIN EN ISO 803
7、1 ISO 8033 DIN EN ISO 8033 ISO 8330 DIN EN ISO 8330 Amendments This standard differs from DIN EN ISO 3861:1997-12 as follows: a) The standard has been brought in line with the current rules of presentation. b) The standard has been editorially revised. c) Clause 3 “Terms and definitions” has been ad
8、ded. d) Clause 4 “Classification” has been added. e) Annex A has been deleted. Previous editions DIN EN ISO 3861: 1997-12 DIN EN ISO 3861:2010-04 3 National Annex NA (informative) Bibliography DIN EN ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances
9、 on cut-to-length hoses DIN EN ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing DIN EN ISO 1746:1998, Rubber or plastics hoses and tubing Bending tests DIN ISO 4649:2006, Rubber, vulcanized or thermoplastic Determination of abrasion resistance using a rotating cylindrical
10、drum device DIN EN ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assemblies DIN EN ISO 4672:1997, Rubber and plastics hoses Sub-ambient temperature flexibility tests DIN EN ISO 7326:1991, Rubber and plastics hoses As
11、sessment of ozone resistance under static conditions DIN EN ISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical properties, resistance and conductivity DIN EN ISO 8033, Rubber and plastics hoses Determination of adhesion between components DIN EN ISO 8330, Rubber and
12、plastics hoses and hose assemblies Vocabulary DIN EN ISO 3861:2010-04 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3861 November 2008 ICS 25.220.10; 83.140.40 Supersedes EN ISO 3861:1997English Version Rubber hoses for sand and grit blasting - Specifica
13、tion (ISO 3861:2005) Tuyaux en caoutchouc pour sablage et grenaillage - Spcifications (ISO 3861:2005) Gummischluche zum Sandstrahlen Anforderungen (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
14、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 application to the CEN Management Centre or to any CEN member. This Europea
15、n 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 Management Centre has the same status as the official versions. CEN members are the natio
16、nal standards bodies of Austria, Belgium, 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 U
17、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 386
18、1:2008: EContents DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 2 Page Foreword .3 1 Scope4 2 Normative references4 3 Terms and definitions .4 4 Classification .5 5 Materials and construction.5 6 Dimensions 5 6.1 Internal diameters and tolerances.5 6.2 Concentricity6 6.3 Tolerance on length 6 6.4 Min
19、imum thickness of lining and cover6 7 Physical properties .6 7.1 Rubber compounds.6 7.2 Finished hoses 6 8 Marking.7 Foreword DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 3 The text of ISO 3861:2005 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” of the International
20、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 assemblies” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication
21、 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 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 h
22、eld responsible for identifying any or all such patent rights. This document supersedes EN ISO 3861:1997. 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, Cypr
23、us, 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 the United Kingdom. Endorsement notice The text of ISO 38
24、61:2005 has been approved by CEN as a EN ISO 3861:2008 without any modification. WARNING Persons using this International 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 respons
25、ibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory 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
26、pressure of 6,3 bar and over an operating temperature range of 25 C to +70 C. 2 Normative references The following referenced 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 refe
27、renced document (including any amendments) applies. ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile 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 ind
28、ustrial applications Bore diameters and tolerances, and tolerances on length ISO 1402, Rubber and plastics hoses and 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 resis
29、tance using a rotating cylindrical drum device ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement 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
30、 static conditions ISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance ISO 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 purpos
31、es of this document, the terms and definitions in ISO 8330 apply. DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 4 4 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 cond
32、uctive, using a conductive rubber layer Designated and marked “” grade. 5 Materials and construction 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
33、conductive rubber layer or a bonding wire or wires consisting of at least nine strands of a metal 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 co
34、ver finish may be smooth or fabric-marked. 6 Dimensions 6.1 Internal diameters and tolerances When 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 Tolera
35、nce 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 DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 5 6.2 Concentricity When determined in accordance with ISO 4671, the concentricity, based on a total indicator reading between the internal diameter and the
36、 outside surface of the cover, shall be no greater than 1,0 mm. 6.3 Tolerance on 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 thicknes
37、s of the rubber lining shall be 5,0 mm and that of the cover 1,0 mm. 7 Physical 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 carrie
38、d out either on samples taken from the hose or from separately vulcanized sheets 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
39、 Property Lining Cover Test method Minimum tensile strength 14,0 MPa 10,0 MPa ISO 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 o
40、riginal value (max.) between +10 % and 30 % between +10 % and 30 % ISO 188:1998 (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 pr
41、operties of finished hoses shall conform to the values specified in Table 3. DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 6 Table 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 diame
42、ter at proof pressure 10 % ISO 1402 Twist at proof pressure 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 siz
43、es Flexibility at 23 C T/D not less than 0,8 ISO 1746:1998, 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
44、 Marking The hose shall be continuously and durably marked with 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 manufacture. EXAMPLE MAN/ISO 3861:2005/Grade “M”/25/6,3 bar/1Q05 DIN EN ISO 3861:2010-04 EN ISO 3861:2008 (E) 7
