BS ISO 6804-2016 Rubber and plastics inlet hoses and hose assemblies for washing-machines and dishwashers Specification《洗衣机和洗碗机用橡胶和塑料软管和软管总成 规格》.pdf

1、BS ISO 6804:2016Rubber and plastics inlethoses and hose assembliesfor washing-machines anddishwashers SpecificationBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 6804:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO

2、6804:2016.The UK participation in its preparation was entrusted to Technical Committee PRI/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

3、necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 89073 4 ICS 83.140.40; 97.040.40; 97.060 Compliance with a British Standard cannot confer immunity from legal obligation

4、s.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 6804:2016 ISO 2016Rubber and plastics inlet hoses and hose assemblies for washing-machines and

5、 dishwashers SpecificationTuyaux et flexibles en caoutchouc et en plastique pour lalimentation des machines laver et lave-vaisselle SpcificationsINTERNATIONAL STANDARDISO6804Fourth edition2016-11-01Reference numberISO 6804:2016(E)BS ISO 6804:2016ISO 6804:2016(E)ii ISO 2016 All rights reservedCOPYRIG

6、HT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, witho

7、ut prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS I

8、SO 6804:2016ISO 6804:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Classification 25 Couplings and fittings 26 Materials and construction . 27 Dimensions and tolerances . 27.1 Inside diameters, tolerances and minimum wall thickness . 27.1.1 Type 1 and type 2 hoses

9、 27.1.2 Type 3 hoses 37.2 Concentricity. 37.3 Tolerances on length 38 Performance requirements for finished hoses and hose assemblies . 38.1 Hydrostatic-pressure requirements (proof pressure test) . 38.2 Burst test 38.3 Bending test . 38.4 Flexing tests . 48.4.1 General 48.4.2 Sub-ambient temperatur

10、e flexing test 48.4.3 Standard laboratory temperature flexing test 48.5 Resistance to kinking . 58.6 Resistance to hydrostatic pressure after ageing 58.7 Resistance to ozone or weathering . 68.7.1 Resistance to ozone (type 1 and type 2 hoses) 68.7.2 Resistance to weathering (type 3 hoses) 68.8 Resis

11、tance to hydraulic-pressure impulse test . 68.9 Adhesion . 78.10 Mechanical resistance of thermoplastics coupling nuts . 79 Frequency of testing 910 Test certificate . 911 Marking 912 Recommendations for packaging and storage 9Annex A (normative) Type tests and routine tests .10Annex B (informative)

12、 Recommended tests for production acceptance testing .11Annex C (informative) Delivery certificate and test certificate12Bibliography .13 ISO 2016 All rights reserved iiiContents PageBS ISO 6804:2016ISO 6804:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide feder

13、ation 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 commit

14、tee. 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 and

15、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, Part

16、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 the

17、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 terms

18、and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 45, Rubbe

19、r and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.This fourth edition cancels and replaces the third edition (ISO 6804:2009), which has been technically revised with the following main changes: Clause 2 has been updated: ISO 1746 has been deleted and replaced by

20、 ISO 10619-1; Clause 8 has been extended to cover hydrostatic proof pressure tests and burst testing. A new table (Table 2) has been added to specify maximum working pressures, proof pressures and minimum burst pressures for each type. All subclauses have been renumbered; 8.5 (old 8.3) and 8.6 (old

21、8.4) have been extended with one line specifying the specific test pressures for the different hose types after kinking and ageing tests; Clause 11 a), b), c), e) and example have been amended; Annex A and Annex B have been amended to include hydrostatic pressure proof test and burst testing. The te

22、rm “hose assembly” has been added to the description of routine tests. Table B.1 (column production acceptance test) has been filled in to specify which tests are recommended per batch (the previous edition specified N.A. to all the tests); Table C.2 has been extended to show hydrostatic proof press

23、ure test and burst test results.iv ISO 2016 All rights reservedBS ISO 6804:2016INTERNATIONAL STANDARD ISO 6804:2016(E)Rubber and plastics inlet hoses and hose assemblies for washing-machines and dishwashers Specification1 ScopeThis document specifies the requirements for three types of rubber or pla

24、stics inlet hoses and hose assemblies for washing-machines and dishwashers connected to the domestic water supply at a pressure not exceeding 1 MPa (10 bar).It is applicable to the following types of hose: type 1: rubber hoses for unheated water supply (maximum temperature 70 C); type 2: rubber hose

25、s for heated water supply (maximum temperature 90 C); type 3: plastics hoses for unheated water supply (maximum temperature 60 C).There may be national requirements for hose fittings and hoses conveying drinking water which must be complied with.2 Normative referencesThe following documents are refe

26、rred to in the text in such a way that some or all of their content constitutes requirements 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 188, Rubber, vulcanized or

27、 thermoplastic Accelerated ageing and heat resistance testsISO 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 4671, Rubber and plastics hoses and hos

28、e assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 4892 (all parts), Plastics Methods of exposure to laboratory light sourcesISO 7326:2006, Rubber and plastics hoses Assessment of ozone resistance under static conditionsISO 8033, Rubber and plastics

29、hoses Determination of adhesion between componentsISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selection, storage, use and maintenanceISO 10619-1:2011, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperature

30、ISO 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. ISO 2016 All rights reserved 1BS ISO 6804:2016ISO 6804:2016(E)ISO and IEC maintain ter

31、minological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 ClassificationHoses are designated as one of the following three types, depending on the hose mate

32、rial and the temperature of the water supply.Type 1: Rubber hoses for a medium-temperature water supply (up to 70 C) for a maximum working pressure of 1 MPa (10 bar).Type 2: Rubber hoses for a high-temperature water supply (up to 90 C) for a maximum working pressure of 1 MPa (10 bar).Type 3: Plastic

33、s hoses for low temperature (up to 60 C) water supply for a maximum working pressure of 0,8 MPa (8 bar).5 Couplings and fittingsHoses may be fitted with the appropriate type of coupling and end fitting to form hose assemblies.NOTE Guidance on coupling types is given in ISO/TR 17784.6 Materials and c

34、onstructionThe hose construction shall be as follows.a) The hose lining shall consist of rubber for type 1 and type 2 or thermoplastics material for type 3.b) The hose reinforcement shall consist of natural or synthetic textile material applied by any suitable technique.c) The hose cover shall consi

35、st of an ozone-resistant rubber for type 1 and type 2 or a weather-resistant thermoplastics material for type 3 (or, alternatively, a stainless-steel braid may be used instead of a cover).The lining and the cover shall be of uniform thickness, concentric, fully gelled and free from visible cracks, p

36、orosity, foreign inclusions and other defects which could cause the hose to be unserviceable.7 Dimensions and tolerances7.1 Inside diameters, tolerances and minimum wall thickness7.1.1 Type 1 and type 2 hosesThe preferred values for the bore of the hose are 10 mm and 12,5 mm.The tolerances on the bo

37、re will depend on the characteristics of the end fittings; consequently, they shall be agreed between the manufacturer of the hose and the constructor of the hose assembly, but shall not exceed the maximum tolerances specified in ISO 1307.2 ISO 2016 All rights reservedBS ISO 6804:2016ISO 6804:2016(E

38、)7.1.2 Type 3 hosesWhen measured in accordance with ISO 4671, the inside diameter and minimum wall thickness of the hose shall meet the requirements specified in Table 1.Table 1 Nominal bores, inside diameters, tolerances on inside diameter and minimum wall thicknesses of plastics hosesNominal boreI

39、nside diameter mmTolerances on inside diameter mmMinimum wall thickness mm10 10 0,6 2,613 12,7 0,6 2,67.2 ConcentricityWhen determined in accordance with ISO 4671, the concentricity, based on a total indicator reading between the inside diameter and the outside surface of the cover, shall not be gre

40、ater than 0,3 mm.7.3 Tolerances on lengthThe tolerances on cut lengths of hose shall be in accordance with ISO 1307.8 Performance requirements for finished hoses and hose assemblies8.1 Hydrostatic-pressure requirements (proof pressure test)The proof pressure test shall be carried out on every length

41、 of finished hose and on hose assemblies. When tested in accordance with ISO 1402, the hose (and the hose assembly) shall meet the requirements of Table 2. The maximum variation in length and outside diameter at maximum working pressure shall be 5 % and the hose/hose assembly shall not burst or fail

42、 by showing signs of leakage, cracking, abrupt distortion indicating irregularities in material or manufacture, or other signs of failure.Table 2 Hydrostatic-pressure requirementsHose typeMaximum working pressureProof pressureMinimum burst pressureMPa bar MPa bar MPa bar1 1 10 1,5 15 3 302 1 10 1,5

43、15 3 303 0,8 8 1,2 12 2,4 248.2 Burst testWhen tested by the method specified in ISO 1402, hoses shall meet the requirements of Table 2.8.3 Bending testThe bending test shall be carried out at a standard temperature as specified in ISO 23529.When tested in accordance with ISO 10619-1:2011, method A,

44、 using a bending radius of 7,5 times the outside diameter, the hoses shall show no evidence, under visual examination, of kinking, breaking or peeling. The value of the coefficient of deformation (T/D) shall not be lower than 0,8. ISO 2016 All rights reserved 3BS ISO 6804:2016ISO 6804:2016(E)8.4 Fle

45、xing tests8.4.1 GeneralIn the case of type 3 hoses, flexing tests shall be carried out using the test arrangement shown in Figure 1.1234Key1 oscillating arm2 flexing of coupling3 support4 2 kg weightFigure 1 Arrangement for flexing tests8.4.2 Sub-ambient temperature flexing testWhen the hose is test

46、ed during and after conditioning for 5 h at (5 3) C, the oscillating arm is moved right and left alternately through an angle of 90 at a rate of (50 10) flexings per minute for 500 flexings. The hose shall show no evidence of cracking or other defects.8.4.3 Standard laboratory temperature flexing te

47、stWhen tested at a standard laboratory temperature as specified in ISO 23529, moving the oscillating arm through an angle of 180 at a rate of (20 5) flexings per minute for 100 000 flexings, the hose shall show no evidence of cracking or other defects.4 ISO 2016 All rights reservedBS ISO 6804:2016IS

48、O 6804:2016(E)8.5 Resistance to kinkingThe kinking test shall be carried out at a standard temperature as specified in ISO 23529.The hose assembly is folded through an angle of 180 and then compressed in such a way that the total thickness is equal to twice the outer diameter of the hose, as shown i

49、n Figure 2.The pressure is maintained for 5 s, after which the hose assembly is allowed to rest for 1 min.The test is carried out 10 times at the same point, the fold being made in the same direction each time.1Key1 direction of foldFigure 2 Kinking testAfter the test, the hose assembly shall be filled with water at the specified temperature and then tested at a pressure of 2,1 MPa (21 bar) for type 1 and type 2, and 1,7 MPa (17 bar) for type 3 by the method specified in ISO 1402