DIN EN ISO 4671-2012 Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671 2007 + Amd 1 201.pdf

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1、February 2012 Translation by DIN-Sprachendienst.English price group 11No 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).I

2、CS 23.040.70!$yo“1867625www.din.deDDIN EN ISO 4671Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths ofhose assemblies (ISO 4671:2007 + Amd. 1:2011)English translation of DIN EN ISO 4671:2012-02Gummi- und Kunststoffschluche und -schlauchle

3、itungen Verfahren zur Messung der Mae von Schluchen und Lngen von Schlauchleitungen(ISO 4671:2007 + Amd. 1:2011)Englische bersetzung von DIN EN ISO 4671:2012-02Tuyaux et flexibles en caoutchouc et en plastique Mthodes de mesurage des dimensions des tuyaux et de la longueur des flexibles(ISO 4671:200

4、7 + Amd. 1:2011)Traduction anglaise de DIN EN ISO 4671:2012-02SupersedesDIN EN ISO 4671:2010-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1602.12 DIN EN ISO 4671:2012-02 2 A comma is used as the decimal marker. National forewo

5、rd This document has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” (Secretariat: DSM, Malaysia), Subcommittee SC 1 “Hoses (rubber and plastics)” (Secretariat: DSM, Malaysia) in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assembl

6、ies” (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. This document includes Amendment A1:2011 approved by CEN on 2011-08-31. The s

7、tart and finish of text introduced or altered by amendment is indicated in the text by tags !“. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 463 DIN EN ISO 463 ISO 3599 DIN 862 ISO 3611 DIN 863-1 Amendments This standard differs from

8、 DIN EN ISO 4671:2010-10 as follows: a) in Subclause 5.1, first paragraph, the second sentence relating to the measurement of the outside diameter has been rendered more precise. Previous editions DIN EN 24671: 1993-04 DIN EN ISO 4671: 2000-09, 2009-10, 2010-10 National Annex NA (informative) Biblio

9、graphy DIN 862, Vernier callipers Requirements and testing DIN 863-1, Verification of geometrical parameters Micrometers Part 1: Standard design micrometer callipers for external measurement Concepts, requirements, testing DIN EN ISO 463, Geometrical Product Specifications (GPS) Dimensional measurin

10、g equipment Design and metrological characteristics of mechanical dial gauges EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4671 December 2007 + A1 September 2011 ICS 23.040.70 ; 83.140.40 Supersedes EN ISO 4671:2007-12English Version Rubber and plastics hoses and hose assemblies - Method

11、s of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671:2007 + Amd. 1:2011) Tuyaux et flexibles en caoutchouc et en plastique - Mthodes de mesurage des dimensions des tuyaux et de la longueur des flexibles (ISO 4671:2007 + Amd. 1:2011) Gummi- und Kunststoffschluche u

12、nd -schlauchleitungen -Verfahren zur Messung der Mae von Schluchen und Lngen von Schlauchleitungen (ISO 4671:2007 + Amd. 1:2011) EN ISO 4671:2007 was approved by CEN on 2007-11-28 and Amendment A1:2011 on 2011-08-31. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti

13、pulate 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-CENELEC Management Centre or to any CEN member. This European

14、 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 Management Centre has the same status as the official versions. CEN members are th

15、e national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, S

16、witzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue 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.

17、No. EN ISO 4671:2007 + A1:2011 EContents Page ! 1 Scope 4 2 Normative references 4 3 Test piece conditioning and temperature of measurement 4 4 Measurement of inside diameter 4 5 Measurement of outside diameter .6 6 Measurement of diameter over reinforcement .7 7 Measurement of wall thickness 7 8 Me

18、asurement of concentricity 8 9 Measurement of lining and cover thickness .9 10 Measurement of length and identification of measurement points . 10 11 Verification of through-bore of hose assemblies 12 12 Test report . 13 Bibliography . 14 2 DIN EN ISO 4671:2012-02 EN ISO 4671:2007 + A1:2011 (E) Fore

19、word to EN ISO 4671:2007 3Foreword to EN ISO 4671:2007/A1:2011 .3Foreword to EN ISO 4671:2007 This document (EN ISO 4671:2007) 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 asse

20、mblies” 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 June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attent

21、ion 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 4671:2000. According to the CEN/CENELEC Internal Regulations

22、, the 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

23、, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 4671:2007 has been approved by CEN as EN ISO 4671:2007 without any modification. !Foreword to EN ISO 4671:2007/A1:2011 This document (EN ISO 4671:2007/A1:201

24、1) 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 secretariat of which is held by BSI. This Amendment to the European Standard EN ISO 4671:2007 shall be given the

25、 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 March 2012. Attention is drawn to the possibility that some of the elements of this document may be the su

26、bject 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 organizations of the following countries are bound to implement this European Standard: Austria, Belgium,

27、Bulgaria, Croatia, 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 the United Kingdom. Endorsement no

28、tice The text of ISO 4671:2007/Amd. 1:2011 has been approved by CEN as EN ISO 4671:2007/A1:2011 without any modification.“ 3 DIN EN ISO 4671:2012-02 EN ISO 4671:2007 + A1:2011 (E) 1 Scope This International Standard specifies methods of measuring the inside diameter, outside diameter (including diam

29、eter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover thickness of hoses, methods of measurement and identification of the lengths of hoses and hose assemblies, and a method of verifying the through-bore of hydraulic hose assemblies. 2 Normative references T

30、he 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 referenced document (including any amendments) applies. ISO 463, Geometrical Product Specifications (GPS)

31、Dimensional measuring equipment Design and metrological characteristics of mechanical dial gauges ISO 3599, Vernier callipers reading to 0,1 and 0,05 mm ISO 3611, Micrometer callipers for external measurement 3 Test piece conditioning and temperature of measurement 3.1 Conditioning of test pieces Un

32、less otherwise specified, test pieces shall be taken at least 16 h after manufacture of the hose and conditioned at 7323 C+for at least 3 h before measurement. 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

33、 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 (minimum length 150 mm) cut from a full length. For wire-reinforced hydraulic hoses, measurements shall be made at a minimum distance of 25 mm from th

34、e end of the hose. Measurements shall be made using one of the following methods, as appropriate. 4 DIN EN ISO 4671:2012-02 EN ISO 4671:2007 + A1:2011 (E) 4.2 Method 1 For inside diameters less than 150 mm and for all sizes of collapsible hose, plug gauges with 0,25 mm increments in diameter (see Fi

35、gure 1) and tapered gauges with 0,1 mm increments in diameter (see Figure 2) may be used. Insert the gauge into the hose test piece gently without pressure. Take special care if the hose bore is not precisely circular. Dimensions in millimetres Figure 1 Plug gauges Dimensions in millimetres Figure 2

36、 Tapered gauges 4.3 Method 2 For inside diameters less than 63 mm, where greater accuracy is required, for example for wire-reinforced hydraulic hoses, an expanding 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 sl

37、ide callipers complying with the requirements of ISO 3599 may be used. Make two measurements at right angles to each other and take their average as the inside diameter. Take care not to distort the hose when making the measurements. Callipers of suitable size may be used for nominal bores above 100

38、 when greater accuracy than is obtainable by Method 5 (see 4.6) is required. 4.5 Method 4 For all inside diameters, an internal calliper dial gauge (see ISO 463) with rounded feet designed for use in bores made of elastomeric material may be used, a calliper size being chosen which is suitable for t

39、he inside diameter to be measured. Make two measurements at right angles to each other and take their average as the inside diameter. 5 DIN EN ISO 4671:2012-02 EN ISO 4671:2007 + A1:2011 (E) 4.6 Method 5 For inside diameters above 100 mm, a sufficient degree of accuracy for normal purposes is obtain

40、ed by the use of a graduated steel rule. Alternatively, digital callipers or a digital micrometer may be used. Make two measurements at right angles to each other and take their average as the inside diameter. 4.7 Method 6 For suitable diameters, and where the hose cross-section has not been distort

41、ed by the cutting operation, an optical magnifier with a scale graduated in 0,1 mm divisions may be used. Make two measurements at right angles to each other and take their average as the inside diameter. 4.8 Method 7 For inside diameters above 300 mm, a sufficient degree of accuracy for normal purp

42、oses is obtained by measuring the inside circumference of the hose with a measuring tape. The inside diameter is obtained by dividing the measured value by pi (). A measuring tape graduated in centimetres may be used. 5 Measurement of outside diameter 5.1 General Measurements made by methods 1 to 5

43、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 25 mm from the ends of the hose in methods 1, 2, 3 and 5 and at the end of the hose in method 4.“ If the cover is fluted or corrugated,

44、measurements shall be made at the top of an outward-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 the requirements of

45、ISO 3611, may be used. Make two measurements at right angles to each other and take their average 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 i

46、nside 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 may be used, or the circumference may be measured using a flexible tape

47、and the diameter calculated from it. 5.5 Method 4 For suitable diameters, and where the hose cross-section has not been distorted by the cutting operation, an optical magnifier with a scale graduated in 0,1 mm divisions may be used. Alternatively, a laser measuring device may be used. Make two measu

48、rements at right angles to each other and take their average as the outside diameter. 5.6 Method 5 For all outside diameters, laser micrometers may be used. Make two measurements at right angles to each other and take their average as the outside diameter. 6 DIN EN ISO 4671:2012-02 EN ISO 4671:2007 + A1:2011 (E) 6 Measurement of diameter over reinforcement Measurement of the diameter over reinforcement is normally confined to hydraulic hoses in connection with the fitting of couplings and shall be carried out on a te