1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 10619-1:2011Rubber and plastics hoses andtubing Measurement offlexibility and stiffnessPart 1: Bending tests at ambienttemperature (ISO 10619-1:2011)BS EN ISO 10619-1:2
2、011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO10619-1:2011. It supersedes BS EN ISO 1746:2001 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/66/-/4, Rubber and plastics tubing, hoses and hoseassemblies
3、- Methods of test.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 contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978
4、0 580 65422 0ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN S
5、TANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10619-1 December 2011 ICS 23.040.70 Supersedes EN ISO 1746:2000English Version Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 1: Bending tests at ambient temperature (ISO 10619-1:2011) Tuyaux et tubes en caoutchou
6、c et en plastique - Mesurage de la flexibilit et de la rigidit - Partie 1: Essais de courbure temprature ambiante (ISO 10619-1:2011) Gummi- und Kunststoffschluche mit und ohne Einlage - Bestimmung der Biegsamkeit und Steifigkeit - Teil 1: Biegeprfungen bei Umgebungstemperaturen (ISO 10619-1:2011) Th
7、is European Standard was approved by CEN on 30 November 2011. 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 refe
8、rences 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). A version in any other language made by translation under the responsibility of a CE
9、N 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ic
10、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Aven
11、ue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10619-1:2011: EBS EN ISO 10619-1:2011EN ISO 10619-1:2011 (E) 3 Foreword This document (EN ISO 10619-1:2011) has been prepared by Technical Commi
12、ttee ISO/TC 45 “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 tex
13、t or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. 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 fo
14、r identifying any or all such patent rights. This document supersedes EN ISO 1746:2000. 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
15、 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 10619-1:201
16、1 has been approved by CEN as a EN ISO 10619-1:2011 without any modification. BS EN ISO 10619-1:2011ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally c
17、arried 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 ISO, also take part in the wor
18、k. 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 committees is to prepare Interna
19、tional 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 the possibility that some of the e
20、lements 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 10619-1 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics.This first edition cancel
21、s and replaces ISO 1746:1998. It also incorporates the Technical Corrigendum ISO 1746:1998/Cor.1:1999. In particular, it specifies additional test methods. ISO 10619 consists of the following parts, under the general title Rubber and plastics hoses and tubing Measurement of flexibility and stiffness
22、: Part 1: Bending tests at ambient temperature Part 2: Bending tests at sub-ambient temperatures Part 3: Bending tests at high and low temperaturesISO 10619-1:2011(E) ISO 2011 All rights reserved iiiBS EN ISO 10619-1:2011BS EN ISO 10619-1:2011INTERNATIONAL STANDARD ISO 10619-1:2011(E)Rubber and plas
23、tics hoses and tubing Measurement of flexibility and stiffness Part 1:Bending tests at ambient temperatureWARNING Persons using this part of ISO 10619 should be familiar with normal laboratory practice. This part of ISO 10619 does not purport to address all of the safety problems, if any, associated
24、 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 part of ISO 10619 specifies three methods for measuring the flexibility of rubber and plastics hoses and tubing (metho
25、ds A1, B and C1), where the deformation of the hose or tubing is measured, and two methods for measuring the stiffness (methods A2 and C2) by measuring the force to bend the hose or tubing when rubber or plastics hoses or tubing are bent to a specific radius at ambient temperature.Methods A1 and A2
26、are suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 80 mm.Method A1 allows the measurement of the flexibility of the hose or tubing by measuring the reduction in outside diameter when the hose is compressed between two plates.Method A2 provides a means o
27、f measuring the force required to reach a specific bend radius, when the hose or tubing is compressed, as between two plates. The test can be carried out at a specified internal pressure.Method B is suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 100 mm,
28、 and provides a means of assessing the behaviour of the hose and tubing when bent around a mandrel. The final mandrel diameter used can be taken as the minimum bend radius of the hose or tubing. As this value is determined by the reduction of the outside diameter which can be used as a measure of th
29、e flexibility of the hose or tubing. The hose or tubing being tested can be unpressurized, pressurized or under vacuum and, if required, with the curvature or against the curvature of the hose or tubing, if such curvature is present.Methods C1 and C2 are suitable for rubber and plastics hoses and tu
30、bing with inside diameter of 100 mm and greater.Method C1 provides a means of determining the flexibility of the hose and tubing at the minimum bend radius.Method C2 provides a method of measuring the stiffness of the hose and tubing at the minimum bend radius.2 Normative referencesThe following ref
31、erenced 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 4671, Rubber and plastics hoses and hose assemblies Methods of
32、measurement of the dimensions of hoses and the lengths of hose assembliesISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods ISO 2011 All rights reserved 1BS EN ISO 10619-1:20113 T
33、erms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 and the following apply.3.1bendingshaping or forcing something straight into a curve or angle at a specified temperature3.2flexibilityease of bending a hose without it being damaged by kinking, collaps
34、e, breaking or crackingNOTE A hose can be bent around a mandrel, for example.3.3stiffnessresistance of a hose to bending3.4hose deformationovality obtained when a hose is compressed or bent around a mandrelNOTE This may be measured by the reduction in the outside or inside diameter.3.5flexural stiff
35、nessmeasure of the resistance of a hose to bending3.6dynamometerforce measuring device4 Method A14.1 Apparatus4.1.1 Apparatus, consisting of two guides A and B, guide A being fixed in a plane and guide B being movable in that plane, parallel to and in line with, guide A see Figure 1a).If it is desir
36、ed to measure the force to attain the specified radius of curvature, this may be done, for example, by means of pulleys and weights. Care shall be taken to minimize the effects of frictional resistance (see Figure 2).4.2 Hose test pieces4.2.1 Types and dimensionsThe hose test pieces shall consist ei
37、ther of complete manufactured lengths of hose or suitable test lengths. If the manufactured length is shorter than the length required for the test, hose test pieces of adequate length shall be specially manufactured.4.2.2 NumberUnless otherwise specified, two hose test pieces shall be tested.4.3 Co
38、nditioning of hose test piecesNo test shall be carried out within 24 h of manufacture.ISO 10619-1:2011(E)2 ISO 2011 All rights reservedBS EN ISO 10619-1:2011For evaluations which are intended to be comparable, the test shall, as far as possible, be carried out after the same time interval after manu
39、facture. ISO 23529 shall be followed for time between sample manufacture and testing.Before testing, hose test pieces shall be conditioned for at least 16 h at a standard laboratory temperature and humidity (see ISO 4671): this 16 h period may be part of the 24h interval after manufacture.4.4 Test t
40、emperaturesThe test shall be conducted at a standard laboratory temperature and humidity in accordance with ISO 23529.4.5 Test procedure4.5.1 If required, apply the specific test pressure or vacuum as given in the relevant product specification.4.5.2 Measure and determine the average outside diamete
41、r, D, of the hose by means of a suitable measuring instrument as specified in ISO 4671.4.5.3 Draw two parallel and diametrically opposed lines along the length of the hose. If the hose has natural curvature, one of the lines shall be on the outside of the curve. On each of these lines, mark a distan
42、ce of 1,6 C + 2 D or 200 mm whichever is longer, where C is twice the minimum bend radius specified in the appropriate specification, so that the marked distances are exactly opposed. This ensures a sufficient length for the bend test and adequate support of the hose.4.5.4 Separate guides A and B to
43、 a distance slightly less than 1,6 C + 2 D. Place the hose between the guides so that the ends of the marked distances are parallel to the ends of the guides and remain in this position while the guides are closed to a distance of C + 2 D (see Figure 1).4.5.5 Check that the hose on each side is supp
44、orted to a length of not less than D.4.5.6 Measure and determine the minimum outside dimension, T, in the curved position of the hose see Figure 1b).4.6 Expression of resultsCalculate the value of T/D using the mean values obtained. Compare the result with the permitted deformation given in the appr
45、opriate hose specification.4.7 Test reportThe test report shall include the following information:a) a reference to this part of ISO 10619, i.e. ISO 10619-1:2011;b) the method used;c) a full description of the hose or tubing tested and a reference to the hose specification in accordance with which t
46、he hose was tested;d) the test temperature;e) the internal pressure or vacuum at which the test was carried out (if applicable);f) observation on any abrupt change(s) in the hose section or irregularity in curvature caused by kinking;g) the value of D,T and T/D;h) whether T/D was within the permitte
47、d deformation;ISO 10619-1:2011(E) ISO 2011 All rights reserved 3BS EN ISO 10619-1:2011i) the date of the test.5 Method A25.1 Apparatus5.1.1 Apparatus, consisting of two guides A and B, guide A being fixed in a plane and guide B being movable in that plane, parallel to and in line with, guide A, and
48、attached to a series of pulleys and weights, as shown in Figure 2. Care shall be taken to minimize the effects of frictional resistance.5.2 Hose test pieces5.2.1 Types and dimensionsThe hose test pieces shall consist either of complete manufactured lengths of hose or suitable test lengths. If the ma
49、nufactured length is shorter than the length required for the test, test pieces of adequate length shall be specially manufactured.5.2.2 NumberUnless otherwise specified, two hose test pieces shall be tested.5.3 Conditioning of hose test piecesNo test shall be carried out within 24 h of manufacture.For evaluations which are intended to be comparable, the test shall, as far as possible, be carried out after the same time interval after manufacture. ISO 23529 shall be followed for the time between sample manufacture and testing.Before tes
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