1、BSI Standards PublicationBS EN ISO 3994:2014Plastics hoses Helical-thermoplastic-reinforcedthermoplastics hoses forsuction and dischargeof aqueous materials SpecificationBS EN ISO 3994:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 3994:2014.It superse
2、des BS EN ISO 3994:2011 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hoseassemblies.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does n
3、ot purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 75108 0ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obli
4、gations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3994 August 2014 ICS 23.040.70 Supersedes EN ISO 3994:2011Engl
5、ish Version Plastics hoses - Helical-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
6、- Spcifications (ISO 3994:2014) Kunststoffschluche - 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/
7、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 references concerning such national standards may be obtained on application to the CEN-CENELEC Management Cent
8、re 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the
9、 official versions. CEN members are the 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, Netherl
10、ands, Norway, Poland, Portugal, Romania, 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 right
11、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3994:2014 EBS EN ISO 3994:2014EN ISO 3994:2014 (E) 3 Foreword This document (EN ISO 3994:2014) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in collaboration
12、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 text or by endorsement, at the latest by February 2015, and conf
13、licting 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 responsible for identifying any or all such patent rights. This doc
14、ument 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav
15、 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 United Kingdom. Endorsement notice The text of ISO 3994:2014 has bee
16、n approved by CEN as EN ISO 3994:2014 without any modification. BS EN ISO 3994:2014ISO 3994:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Classification 25 Materials and construction . 26 Dimensions and t
17、olerances . 26.1 Nominal bores, inside diameters and tolerances 26.2 Length tolerances . 27 Performance requirements . 37.1 Hydrostatic testing at 23 C 2 C . 37.2 Hydrostatic testing at 55 C 2 C . 47.3 Maximum working pressure . 47.4 Tensile test 57.5 Vacuum test 57.6 Reinforcement fracture test . 5
18、7.7 Minimum bend radius 67.8 Cold-bend radius . 67.9 Loss in mass on heating 67.10 Exposure to xenon-arc lamp 78 Type, routine and production testing . 79 Marking 710 Recommendations for packing and storage 711 Test report/certificate 7Annex A (normative) Tensile test . 8Annex B (normative) Vacuum t
19、est .10Annex C (normative) Reinforcement fracture test 11Annex D (normative) Type and routine tests .13Annex E (informative) Recommended tests for production testing .14Bibliography .15BS EN ISO 3994:2014ISO 3994:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide
20、federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried 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 c
21、ommittee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document
22、 and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives,
23、Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of
24、 the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific t
25、erms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber pro
26、ducts, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.This fourth edition cancels and replaces the third edition (ISO 3994:2007), which has been technically revised.iv ISO 2014 All rights reservedBS EN ISO 3994:2014ISO 3994:2014(E)IntroductionThis International Standard has been pr
27、epared to provide minimum acceptable requirements for the satisfactory 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
28、deleterious chemicals, this is a matter for agreement between the supplier and the purchaser. ISO 2014 All rights reserved vBS EN ISO 3994:2014BS EN ISO 3994:2014Plastics hoses Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials SpecificationWARNING P
29、ersons 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 responsibility of the user to establish appropriate health and safety practices
30、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 discharge of water, weak aqueous chemical solutions and abrasive solids and slurries
31、, 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 with flammable or combustible materials, nor with aromatic solvents.NOTE Hoses o
32、f 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 indispensable for its application. For dated references, only the edition cited appl
33、ies. 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, Plastics Determination of loss of plasticizers Activated carbon methodISO 1307, Rub
34、ber 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 and hose assemblies VocabularyISO 10619-1, Rubber and plastics hoses and tubing
35、 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 temperaturesISO 30013, Rubber and plastics hoses Methods of exposure to laboratory lig
36、ht 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 purposes of this document, the terms and definitions given in ISO 8330 apply.
37、INTERNATIONAL STANDARD ISO 3994:2014(E) ISO 2014 All rights reserved 1BS EN ISO 3994:2014ISO 3994:2014(E)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: medium-duty service; typ
38、e 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 material supported wi
39、thin 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 the hose in service.
40、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 1307.2 ISO 2014 All rig
41、hts reservedBS EN ISO 3994:2014ISO 3994:2014(E)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 50
42、 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 t
43、he 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 (indicatin
44、g irregularity in materials or manufacture) or other signs of failure; the minimum burst pressure shall be as specified in Table 2. ISO 2014 All rights reserved 3BS EN ISO 3994:2014ISO 3994:2014(E)Table 2 Hydrostatic testing at 23 C 2 CNominal boreType 1 Type 2 Type 3Proof pressureMinimum burst pres
45、sureProof pressureMinimum 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
46、3,6 0.9 9 0,48 4,8 1,2 12 0,6 6 1,5 15100 up to and including 127 0,28 2,8 0,7 7 0,36 3,6 0,9 9 0,48 4,8 1,2 12152 up to and including 250 0,24 2,4 0,6 6 0,32 3,2 0,8 8 0,36 3,6 0,9 9300 and 315 0,32 3,2 0,8 87.2 Hydrostatic testing at 55 C 2 CWhen subjected to the burst pressure test specified in I
47、SO 1402 at 55 C 2 C, hoses shall meet the requirements given in Table 3.Table 3 Hydrostatic testing at 55 C 2 CNominal boreMinimum burst pressureType 1 Type 2 Type 3MPa bar MPa bar MPa bar12,5 up to and including 25 0,5 5 0,65 6,5 0,8 832 up to and including 63 0,4 4 0,45 4,5 0,6 676 up to and inclu
48、ding 90 0,3 3 0,4 4 0,5 5100 up to and including 127 0,25 2,5 0,3 3 0,4 4152 up to and including 250 0,2 2 0,25 2,5 0,3 3300 and 315 0,25 2,57.3 Maximum working pressureThe maximum working pressure shall be as specified in Table 4.4 ISO 2014 All rights reservedBS EN ISO 3994:2014ISO 3994:2014(E)Tabl
49、e 4 Maximum working pressuresNominal boreMaximum working pressure23 C 2 C 55 C 2 CType 1 Type 2 Type 3 Type 1 Type 2 Type 3MPa bar MPa bar MPa bar MPa bar MPa bar MPa bar12,5 up to and including 250,56 5,6 0,73 7,3 0,93 9,3 0,16 1,6 0,21 2,1 0,26 2,632 up to and including 63 0,4 4 0,5 5 0,6 6 0,13 1,3 0,15 1,5 0,2 276 up to and including 90 0,3 3 0,4 4 0,5 5 0,1 1 0,13 1,3 0,16 1,6100
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