1、BRITISH STANDARD BS EN ISO 4671:2007Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesICS 23.040.70nullnull nullnullnullnullnullnullnull nullnullnullnullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnullnull
2、nullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnullnull+A1:2011National forewordThis British Standard is the UK implementation of EN ISO 4671:2007+A1:2011. It supersedes BS EN ISO 4671:2007 which is withdrawn.The start and fin
3、ish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For example, text altered by ISO amendment 1 is indicated by !“.The UK participation in its preparation was entrusted to Technical Committee PRI
4、/66, Rubber and plastics tubing, hoses and hose assemblies.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Comp
5、liance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 4671:2007+A1:2011This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 29 February 2008 BSI 2011ISBN 978 0 580 74582 9Amendments/corrigenda issued since publicationD
6、ate Comments31 October 2011 Implementation of ISO amendment 1:2011 with CEN endorsement A1:2011.EN ISO 4671:2007/A1 September 2011 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMICS 23.040.70; 83.140.40 Supersedes EN ISO 4671:2000 English VersionRubber and plastics hoses and hose assemblies - Method
7、s ofmeasurement of the dimensions of hoses and the lengths ofhose assemblies (ISO 4671:2007)Tuyaux et flexibles en caoutchouc et en plastique -Mthodes de mesurage des dimensions des tuyaux et de lalongueur des flexibles (ISO 4671:2007)Gummi- und Kunststoffschluche und Schlauchleitungen -Verfahren zu
8、r Messung der Mae von Schluchen undLngen von Schlauchleitungen (ISO 4671:2007)This European Standard was approved by CEN on 28 November 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a natio
9、nal 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 official versions (English, French, German). A version in any
10、 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, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estoni
11、a, 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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES
12、 KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 4671:2007: EForeword This document (EN ISO 4671:2007) has been prepared by Technical Committee ISO/TC
13、45 “Rubber and rubber products“ in collaboration with Technical Committee CEN/TC218 “Rubber and plastics hoses andhose assemblies” the secretariat of which is he ld by BSI. This European Standard shall be given the status ofa national standard, either by publication of an identical text or byendorse
14、ment, at the latest by June 2008, and conflicting national standards shall be withdrawn atthe latest by June 2008. Attention is drawn to the possibility t hat some of the elements of this document may be th e subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying
15、any orall such patent rights. This document supersedes EN ISO 4671:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, CzechRepublic, Denmark, Estoni
16、a, 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 noticeThe text of ISO 4671:2007 has been approved by CEN as a
17、 EN ISO 4671:2007 without any modification. Foreword to amendment A1 This document (EN ISO 4671:2007/A1:2011) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products“ in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” the secre
18、tariat of which is held by BSI. This Amendment to the European Standard EN ISO 4671:2007 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by
19、 March 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 for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards
20、 organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Polan
21、d, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 4671:2007/Amd 1:2011 has been approved by CEN as a EN ISO 4671:2007/A1:2011 without any modification. BS EN ISO 4671:2007+A1:2011 EN ISO 4671:2007+A1:2011 (E)Reference numb
22、erISO 4671:2007(E)INTERNATIONAL STANDARDISO4671Third edition2007-12-15Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assemblies Tuyaux et flexibles en caoutchouc et en plastique Mthodes demesurage des dimensions des tuyaux et d
23、e la longueur des flexiblesii BS EN ISO 4671:2007+A1:2011 EN ISO 4671:2007+A1:2011 (E)iiiContents PageForeword iv1Scope12Normative references13Test piece conditioning and temperature of measurement14Measurement of inside diameter15Measurement of outside diameter .36Measurement of diameter over reinf
24、orcement .47Measurement of wall thickness48Measurement of concentricity59Measurement of lining and cover thickness.610 Measurement of length and identification of measurement points711 Verification of through-bore of hose assemblies.912 Test report10Bibliography11BS EN ISO 4671:2007+A1:2011 EN ISO 4
25、671:2007+A1:2011 (E)iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member bodyinterested in a
26、 subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closel ywith the International Electrotechnical Commission
27、 (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 International Standards. Draft International Standardsadopted by the technical commi
28、ttees 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 elements of this document may be the subject of patent rights. ISO shall not b
29、e held responsible for identifying any or all such patent rights. ISO 4671 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). This third edition cancels and replaces the second edition (ISO 4671:1999), which h as been technicall
30、y revised. The main changes are the following: a clause has been added (Clause 3) specifying details of test piece conditioning and temperature of measurement; in 4.2, the use of tapered gauges has been added; in Clause 4, an additional method of measuring the inside diameter has been included (4.8)
31、; in Clause 5, an additional method of measuring the outside diameter has been included (5.6); in 7.1, the parts of hoses at which readings are to be taken have been specified; in 8.1, the parts of the hoses at which readings are to be taken have been specified; in Clause 8, three additional methods
32、 of measuring the concentricityhavebeen included (8.4, 8.5 and 8.6); in 9.2, the method of measuring the lining and cover thickness has been modified. BS EN ISO 4671:2007+A1:2011 EN ISO 4671:2007+A1:2011 (E)1Rubber and plastics hoses and hose assemblies Methods ofmeasurement of the dimensions of hos
33、es and the lengths ofhose assemblies 1 Scope This International Standard specifies methods of measuring the inside diameter, outside diameter (including diameter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover thicknessof hoses, methods ofmeasurement and id
34、entification of the lengths of hoses and hose assemblies, and amethod of verifying the through-bore of hydr aulic hose assemblies.2 NormativereferencesThe following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies. For u
35、ndated references, the latest edition of the ref erenced document (including any amendments) applies.ISO 463, Geometrical Product Specifications (GPS) Dimensional measuring equipment Design andmetrological characteristics of mechanical dial gaugesISO 3599, Vernier callipersreading to 0,1 and 0,05 mm
36、ISO 3611, Micrometer callipers for external measurement3 Test piece conditioning and temperature of measurement 3.1Conditioning of test pieces Unless otherwise specified, test pieces shall be taken at least 16 h after manufacture of the hose andconditioned at 7323 C+ for at least 3 h before measurem
37、ent. This 3 h may be included in the 16 h. 3.2 Measurement temperature Unless otherwise specified, the measurement temperature shall be 7323+ C. 4 Measurement of inside diameter 4.1 General Measurements by methods 1 to 7 may be made either on the ends of a full length of hose or on a test piece (min
38、imum length 150 mm) cut from a full length. For wire-reinforced hydraulic hoses, measurements shall bemade at a minimum distance of 25 mm from the end of the hose. Measurements shall be made using one of the following methods, as appropriate.BS EN ISO 4671:2007+A1:2011 EN ISO 4671:2007+A1:2011 (E)2
39、4.2 Method 1 For inside diameters less than 150 mm and for all sizes of collapsible hose, plug gauges with 0,25 mmincrements in diameter (see Figure 1) and tapered gauges with 0,1 mm increments in diameter (see Figure2)maybe used. Insert the gauge into the hose test piece gently without pressure. Ta
40、ke special care if the hosebore is not preciselycircular . Dimensions in millimetres Figure 1 Plug gaugesDimensions in millimetres Figure 2 Tapered gauges4.3 Method 2 For inside diameters less than 63 mm, where greater accuracy is required, for example for wire-reinforced hydraulic hoses, an expandi
41、ng ball or telescopic gauge may be used. 4.4 Method 3 For all inside diameters up to and including 100 mm, the internal jaws of vernier slide callipers complying with the requirements of ISO 3599 may be used. Make twomeasurements at right angles to each other and taketheir average as the inside diam
42、eter. Take care not to distort the hose when making the measurements.Callipers of suitable size may be used for nominal bores above 100 when greater accuracy than is obtainable by Method 5 (see 4.6) is required. 4.5 Method 4 For all insidediameters, an internal calliper dial gauge (see ISO 463) with
43、 rounded feet designed for use inbores made of elastomeric material may be used, a calliper size being chosen which is suitable for the insidediameter to be measured. Make two measurements at right angles to each other and take their average as the inside diameter. BS EN ISO 4671:2007+A1:2011 EN ISO
44、 4671:2007+A1:2011 (E)34.6 Method 5 For inside diameters above 100 mm, a sufficient degree of accuracy for normal purposes is obtained by the use of a graduated steel rule. Alternativel y, digital callipers or a digital micrometermay be used. Make twomeasurements at right angles to each other and ta
45、ke their average as the inside diameter. 4.7 Method 6 For suitable diameters, and where the hose cross-section has not been distorted by the cutting operation, anoptical magnifierwith a scale graduated in 0, 1 mm divisions may be used. Make two measurements at right angles to each other and take the
46、ir average as the inside diameter. 4.8 Method 7 For inside diameters above 300 mm, a sufficient degree of accuracy for normal purposes is obtained bymeasuring the inside circumference of the hose with a measuring tape. The inside diameter is obtained bydividing the measured value by pi ( ). A measur
47、ing tape graduated in centimetres may be used. 5 Measurement of outside diameter 5.1 General Measurements made by methods 1 to 5 may be made either on a full length of hose or on a test piece(minimum length 150 mm) cut from a full length. Measurements shall be made at a minimum distance of of an out
48、ward-projecting part of the cover.Measurements shall be made using one of the following methods, as appropriate.5.2 Method 1 For outside diameters up to and including 100 mm, vernier slide callipers, or a micrometer complying with therequirements of ISO 3611, may be used. Make two measurements at ri
49、ght angles to each other and take theiraverage as the outside diameter. Take care to avoid distorting the hose when making the measurements.When greater accuracy is required, place the test piece on a mandrel of outside diameter equal to the hose inside diameter to prevent distortion. 5.3 Method 2 For outside diameters over 20 mm, a vernier stepped pi-tape may be used. 5.4 Method 3 For outside diameters over 100 mm, a flexible tape graduated to give the diameter directly maybe used, orthe circumference may be measured using a flexible tap
