1、November 2015 English price group 12No 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 23.040.70!%GNT“2364349www.din.d
2、eDIN EN ISO 3994Plastics hoses Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials Specification (ISO 3994:2014);English version EN ISO 3994:2014,English translation of DIN EN ISO 3994:2015-11Kunststoffschluche Mit einer thermoplastischen Wendel verst
3、rkte thermoplastische Schluche zum Ansaugen und Frdern wssriger Stoffe Anforderung (ISO 3994:2014);Englische Fassung EN ISO 3994:2014,Englische bersetzung von DIN EN ISO 3994:2015-11Tuyaux en plastiques Tuyaux thermoplastiques renforcement thermoplastique en spirale pour aspiration et refoulement de
4、 matires aqueuses Spcifications (ISO 3994:2014);Version anglaise EN ISO 3994:2014,Traduction anglaise de DIN EN ISO 3994:2015-11SupersedesDIN EN ISO 3994:2014-12www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considere
5、d authoritative.11.15 DIN EN ISO 3994:2015-11 2 A comma is used as the decimal marker. National foreword The text of ISO 3994:2014 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” and has been taken over as EN ISO 3994:2014 by Technical Committee CEN/TC 218 “Rubber and
6、 plastics hoses and hose assemblies” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the DIN-Normenausschuss Kautschuktechnik (DIN Standards Committee Rubber Technology), Working Committee NA 045-02-12 AA Gummi- und Kunststoffschluche sowie Schlauchlei
7、tungen (Spiegelgremium zu CEN/TC 218; ISO/TC 45/SC 1). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 37 DIN 53504 ISO 176:2005 DIN EN ISO 176:2005-05 ISO 1307 DIN EN ISO 1307 ISO 1402 DIN EN ISO 1402 ISO 8330 DIN EN ISO 8330 ISO 8331
8、DIN EN ISO 8331 ISO 10619-1 DIN EN ISO 10619-1 ISO 10619-2 DIN EN ISO 10619-2 ISO 14557 DIN EN ISO 14557 ISO 23529 DIN ISO 23529 ISO 30013 DIN EN ISO 30013 Amendments This standard differs from DIN EN ISO 3994:2011-08 as follows: a) the standard has been technically and editorially revised; b) Claus
9、e 2 “Normative references” has been revised; c) Subclause 7.1, Table 2, has been revised (introduction of SI unit “MPa”); d) Subclause 7.2, Table 3, has been revised (introduction of SI unit “MPa”); e) Subclause 7.3, Table 4, has been revised (introduction of SI unit “MPa”); f) a NOTE has been inclu
10、ded in Subclause 7.4; g) Subclause 7.5, Table 5, has been revised (introduction of SI unit “kPa”); h) Clause 8 has been revised; i) Clause 11 “Test report/certificate” has been added; j) Annex B has been revised (introduction of SI unit “kPa”); k) Annex D, Table D.1, has been revised; l) a Bibliogra
11、phy has been added. DIN EN ISO 3994:2015-11 3 Compared with DIN EN ISO 3994:2014-12, the following corrections have been made: a) a missing sentence has been added to B.4. Previous editions DIN EN 23994: 1993-04 DIN EN ISO 3994: 2000-11, 2011-08, 2014-12 DIN EN ISO 3994:2015-11 4 National Annex NA (
12、informative) Bibliography DIN 53504, Testing of rubber Determination of tensile strength at break, tensile stress at yield, elongation at break and stress values in a tensile test DIN EN ISO 176:2005-05, Plastics Determination of loss of plasticizers Activated carbon method DIN EN ISO 1307, Rubber a
13、nd plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses DIN EN ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing DIN EN ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary DIN EN ISO 8331, Rubber and plastics
14、hoses and hose assemblies Guidelines for selection, storage, use and maintenance DIN EN ISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperature DIN EN ISO 10619-2, Rubber and plastics hoses and tubing Measurement of flex
15、ibility and stiffness Part 2: Bending tests at sub-ambient temperatures DIN EN ISO 14557, Fire-fighting hoses Rubber and plastics suction hoses and hose assemblies DIN EN ISO 30013, Rubber and plastics hoses Methods of exposure to laboratory light sources Determination of changes in colour, appearan
16、ce and other physical properties DIN ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3994 August 2014 ICS 23.040.70 Supersedes EN ISO 3994:2011 English Version Plastics hoses - Helical-
17、thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials - Specification (ISO 3994:2014) Tuyaux en plastiques - Tuyaux thermoplastiques renforcement thermoplastique en spirale pour aspiration et refoulement de matires aqueuses - Spcifications (ISO 3994:2014) Kunst
18、stoffschluche - Mit einer thermoplastischen Wendel verstrkte thermoplastische Schluche zum Ansaugen und Frdern wssriger Stoffe - Anforderung (ISO 3994:2014) This European Standard was approved by CEN on 17 April 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which st
19、ipulate 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 Europea
20、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-CENELEC Management Centre has the same status as the official versions. CEN members are t
21、he national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman
22、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by
23、any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3994:2014 EContents Page Foreword . 3 Introduction . 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions . 5 4 Classification 6 5 Materials and construction . 6 6 Dimensions and tolerances . 6 6.1 Nominal bores, inside
24、 diameters and tolerances 6 6.2 Length tolerances . 6 7 Performance requirements 7 7.1 Hydrostatic testing at 23 C 2 C . 7 7.2 Hydrostatic testing at 55 C 2 C . 8 7.3 Maximum working pressure 8 7.4 Tensile test . 9 7.5 Vacuum test 9 7.6 Reinforcement fracture test . 9 7.7 Minimum bend radius 10 7.8
25、Cold-bend radius 10 7.9 Loss in mass on heating 10 7.10 Exposure to xenon-arc lamp . 11 8 Type, routine and production testing 11 9 Marking . 11 10 Recommendations for packing and storage 11 11 Test report/certificate 11 Annex A (normative) Tensile test . 12 Annex B (normative) Vacuum test . 14 Anne
26、x C (normative) Reinforcement fracture test . 15 Annex D (normative) Type and routine tests . 17 Annex E (informative) Recommended tests for production testing 18 Bibliography . 19 EN ISO 3994:2014 (E) 2 DIN EN ISO 3994:2015-11 Foreword This document (EN ISO 3994:2014) has been prepared by Technical
27、 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 European Standard shall be given the status of a national standard, either by publication of an identic
28、al text or by endorsement, at the latest by February 2015, and conflicting national standards shall be withdrawn at the latest by February 2015. 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
29、responsible for identifying any or all such patent rights. This document supersedes EN ISO 3994:2011. 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,
30、 Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the U
31、nited Kingdom. Endorsement notice The text of ISO 3994:2014 has been approved by CEN as EN ISO 3994:2014 without any modification. EN ISO 3994:2014 (E) 3 DIN EN ISO 3994:2015-11 IntroductionThis International Standard has been prepared to provide minimum acceptable requirements for the satisfactory
32、performance of polymer-reinforced thermoplastics hoses for suction and discharge applications, conveying water, weak aqueous chemical solutions and abrasive solids and slurries.If there is a special requirement for resistance to deleterious chemicals, this is a matter for agreement between the suppl
33、ier and the purchaser.EN ISO 3994:2014 (E) 4 DIN EN ISO 3994:2015-11 WARNING Persons using this International Standard should be familiar with normal laboratory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It is the re
34、sponsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions.1 ScopeThis International Standard specifies the requirements for three types of helical-thermoplastic-reinforced thermoplastics hoses for suction and discha
35、rge of water, weak aqueous chemical solutions and abrasive solids and slurries, for use in the ambient temperature range from 10 C to 55 C.The three types of hose are for light-, medium- and heavy-duty applications.The types of hoses covered in this International Standard are not intended for use wi
36、th flammable or combustible materials, nor with aromatic solvents.NOTE Hoses of a similar construction for suction and discharge for fire-fighting are specified in ISO 14557.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indisp
37、ensable for its application. 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 tensile stress-strain propertiesISO 176:2005, Plast
38、ics Determination of loss of plasticizers Activated carbon methodISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hosesISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 8330, Rubber and plastics hoses a
39、nd hose assemblies VocabularyISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 10619-2, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperat
40、uresISO 30013, Rubber and plastics hoses Methods of exposure to laboratory light sources Determination of changes in colour, appearance and other physical propertiesISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods3 Terms and definitionsFor the
41、 purposes of this document, the terms and definitions given in ISO 8330 apply.EN ISO 3994:2014 (E) 5 DIN EN ISO 3994:2015-11 4 ClassificationThree types of hoses are specified, related to the maximum working pressure and suction pressure (see Tables 4 and 5): type 1: light-duty service; type 2: medi
42、um-duty service; type 3: heavy-duty service.All types are designed to operate in the ambient temperature range 10 C to 55 C.5 Materials and constructionThe hoses shall be as uniform as commercially practicable in colour and other physical properties. They shall consist of a flexible thermoplastics m
43、aterial supported within the material by a helix of thermoplastic material of a similar compatible property. The reinforcing and flexible components of the wall shall be fused together and free from visible cracks, porosity, foreign inclusions or other defects such as are liable to cause failure of
44、the hose in service.6 Dimensions and tolerances6.1 Nominal bores, inside diameters and tolerancesThe inside diameters and tolerances of hoses of different nominal bores shall meet the requirements given in Table 1.6.2 Length tolerancesThe tolerances on cut lengths shall be in accordance with ISO 130
45、7.EN ISO 3994:2014 (E) 6 DIN EN ISO 3994:2015-11 Table 1 Nominal bores, inside diameters and tolerancesNominal bore Inside diameter Tolerances for types 1 and 2Tolerances for type 3mm mm mm12,5 12,5 0,75 16 16 0,75 19 19 0,75 20 20 0,75 25 25 1,25 1,2532 32 1,25 1,2538 38 1,25 1,5040 40 1,25 1,5050
46、50 1,50 1,5063 63 1,50 1,5076 76 1,50 2,0080 80 1,50 2,0090 90 2,00 2,00100 100 2,00 2,00102 102 2,00 2,00125 125 2,00 2,00127 127 2,00 2,00152 152 2,00 2,00160 160 2,00 2,00200 200 2,00250 250 3,00300 300 3,00315 315 3,007 Performance requirements7.1 Hydrostatic testing at 23 C 2 CWhen subjected to
47、 the proof pressure test and the burst pressure test specified in ISO 1402 at 23 C 2 C, hoses shall meet the following requirements: at the proof pressure specified in Table 2 (i.e. 40 % of the minimum burst pressure), the hoses shall show no evidence of leakage, cracking, abrupt distortion (indicat
48、ing irregularity in materials or manufacture) or other signs of failure; the minimum burst pressure shall be as specified in Table 2.EN ISO 3994:2014 (E) 7 DIN EN ISO 3994:2015-11 Table 2 Hydrostatic testing at 23 C 2 CNominal boreType 1 Type 2 Type 3Proof pressureMinimum burst pressureProof pressur
49、eMinimum burst pressureProof pressureMinimum burst pressureMPa bar MPa bar MPa bar MPa bar MPa bar MPa bar12,5 up to and including 25 0,68 6,8 1,7 17 0,88 8,8 2,2 22 1,12 11,2 2,8 2832 up to and including 63 0,48 4,8 1,2 12 0,6 6 1,5 15 0,72 7,2 1,8 1876 up to and including 90 0,36 3,6 0.9 9 0,48 4,8 1,2 12 0,6 6 1,5 15100 up to and incl
