1、BS ISO 6804:2016 Rubber and plastics inlet hoses and hose assemblies for washing-machines and dishwashers Specification BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 6804:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation
2、 of ISO 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 inclu
3、de all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 89073 4 ICS 83.140.40; 97.040.40; 97.060 Compliance with a British Standard cannot confer immunity from leg
4、al obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 6804:2016 ISO 2016 Rubber and plastics inlet hoses and hose assemblies for was
5、hing- machines and dishwashers Specification Tuyaux et flexibles en caoutchouc et en plastique pour lalimentation des machines laver et lave-vaisselle Spcifications INTERNATIONAL STANDARD ISO 6804 Fourth edition 2016-11-01 Reference number ISO 6804:2016(E)BS ISO 6804:2016ISO 6804:2016(E)ii ISO 2016
6、All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All 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 in
7、ternet or an intranet, without 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 office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09
8、47 copyrightiso.org www.iso.orgBS ISO 6804:2016ISO 6804:2016(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Classification 2 5 C ouplings and fittings 2 6 Materials and construction . 2 7 Dimensions and tolerances . 2 7.1 Inside diameters, tolerances and minimum wa
9、ll thickness . 2 7.1.1 Type 1 and type 2 hoses 2 7.1.2 Type 3 hoses 3 7.2 Concentricity. 3 7.3 Tolerances on length 3 8 P erformanc e r equir ements for finished hoses and hose assemblies .3 8.1 Hydrostatic-pressure requirements (proof pressure test) . 3 8.2 Burst test 3 8.3 Bending test . 3 8.4 Fle
10、xing tests . 4 8.4.1 General 4 8.4.2 Sub-ambient temperature flexing test 4 8.4.3 Standard laboratory temperature flexing test 4 8.5 Resistance to kinking . 5 8.6 Resistance to hydrostatic pressure after ageing 5 8.7 Resistance to ozone or weathering . 6 8.7.1 Resistance to ozone (type 1 and type 2
11、hoses) 6 8.7.2 Resistance to weathering (type 3 hoses) 6 8.8 Resistance to hydraulic-pressure impulse test . 6 8.9 Adhesion . 7 8.10 Mechanical resistance of thermoplastics coupling nuts . 7 9 Frequency of testing 9 10 T est c ertificat e . 9 11 Marking 9 12 Recommendations for packaging and storage
12、 9 Annex A (normative) Type tests and routine tests .10 Annex B (informative) Recommended tests for production acceptance testing .11 Annex C (informative) Deli v ery c ertificat e and t est c ertificat e12 Bibliography .13 ISO 2016 All rights reserved iii Contents PageBS ISO 6804:2016ISO 6804:2016(
13、E) 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 body interested in a subject for which
14、a technical committee has been established 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 closely with the International Electrotechnical Commission (IEC) on all matt
15、ers of electrotechnical standardization. The procedures used to develop this document 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 do
16、cument was drafted in accordance with the editorial rules of the ISO/IEC Directives, 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
17、 such patent rights. Details of any patent rights identified during the development of 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
18、 does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformit y 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:
19、 www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 45, Rubber 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
20、the following main changes: Clause 2 has been updated: ISO 1746 has been deleted and replaced by 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
21、 burst pressures for each type. All subclauses have been renumbered; 8.5 (old 8.3) and 8.6 (old 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 an
22、d Annex B have been amended to include hydrostatic pressure proof test and burst testing. The term “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 editi
23、on specified N.A. to all the tests); Table C.2 has been extended to show hydrostatic proof pressure test and burst test results.iv ISO 2016 All rights reservedBS ISO 6804:2016INTERNATIONAL ST ANDARD ISO 6804:2016(E) Rubber and plastics inlet hoses and hose assemblies for w ashing-machines and dish w
24、 ashers Specification 1 Scope This document specifies the requirements for three types of rubber or plastics 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
25、 of hose: type 1: rubber hoses for unheated water supply (maximum temperature 70 C); type 2: rubber hoses 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 co
26、nveying drinking water which must be complied with. 2 Normative references The following documents are referred 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
27、latest edition of the referenced document (including any amendments) applies. ISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses ISO 1402
28、, Rubber and plastics hoses and hose assemblies Hydrostatic testing ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assemblies ISO 4892 (all parts), Plastics Methods of exposure to laboratory light sources ISO 7326:200
29、6, Rubber and plastics hoses Assessment of ozone resistance under static conditions ISO 8033, Rubber and plastics hoses Determination of adhesion between components ISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selection, storage, use and maintenance ISO 10619-1:2011, Rubber
30、 and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperature ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods 3 T erms a nd definiti ons For the purposes of this document, the terms and d
31、efinitions given in ISO 8330 apply. ISO 2016 All rights reserved 1BS ISO 6804:2016ISO 6804:2016(E) ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available
32、 at http:/ /www.iso.org/obp 4 Classific ation Hoses are designated as one of the following three types, depending on the hose material 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). Ty
33、pe 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: Plastics hoses for low temperature (up to 60 C) water supply for a maximum working pressure of 0,8 MPa (8 bar). 5 C ouplings and fitti ngs Hoses may be fitted with the approp
34、riate type of coupling and end fitting to form hose assemblies. NOTE Guidance on coupling types is given in ISO/TR 17784. 6 Materials and construction The 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)
35、 The hose reinforcement shall consist of natural or synthetic textile material applied by any suitable technique. c) The hose cover shall consist 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
36、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, porosity, foreign inclusions and other defects which could cause the hose to be unserviceable. 7 Dimensions and tolerances 7.1 Inside diameters, tolerances
37、and minimum wall thickness 7.1.1 Type 1 and type 2 hoses The preferred values for the bore of the hose are 10 mm and 12,5 mm. The tolerances on the bore will depend on the characteristics of the end fittings; consequently, they shall be agreed between the manufacturer of the hose and the constructor
38、 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) 7.1.2 Type 3 hoses When measured in accordance with ISO 4671, the inside diameter and minimum wall thickness of the hose shall meet the requirements
39、 specified in Table 1. Table 1 Nominal bores, inside diameters, tolerances on inside diameter and minimum wall thicknesses of plastics hoses Nominal bore Inside diameter mm Tolerances on inside diameter mm Minimum wall thickness mm 10 10 0,6 2,6 13 12,7 0,6 2,6 7.2 Concentricity When determined in a
40、ccordance 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 greater than 0,3 mm. 7.3 Tolerances on length The tolerances on cut lengths of hose shall be in accordance with ISO 1307. 8 P erform anc e r e
41、quir ements for finished hoses and hose assemblies 8.1 Hydrostatic-pressure requirements (proof pressure test) The proof pressure test shall be carried out on every length of finished hose and on hose assemblies. When tested in accordance with ISO 1402, the hose (and the hose assembly) shall meet th
42、e 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 by showing signs of leakage, cracking, abrupt distortion indicating irregularities in material or manufacture, or other signs of
43、 failure. Table 2 Hydrostatic-pressure requirements Hose type Maximum working pressure Proof pressure Minimum burst pressure MPa bar MPa bar MPa bar 1 1 10 1,5 15 3 30 2 1 10 1,5 15 3 30 3 0,8 8 1,2 12 2,4 24 8.2 Burst test When tested by the method specified in ISO 1402, hoses shall meet the requir
44、ements of Table 2. 8.3 Bending test The 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, using a bending radius of 7,5 times the outside diameter, the hoses shall show no evidence, under visual examinati
45、on, 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 Flexing tests 8.4.1 General In the case of type 3 hoses, flexing tests shall be carried out using the test arrangemen
46、t shown in Figure 1. 1 2 3 4 Key 1 oscillating arm 2 flexing of coupling 3 support 4 2 kg weight F i g u r e 1 A r r a n g e m e n t f o r f l e x i n g t e s t s 8.4.2 Sub-ambient t emper atur e fle xing t est When the hose is tested during and after conditioning for 5 h at (5 3) C, the oscillating
47、 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 Standar d labor at ory t emper atur e fle xing t est When tested at a standard laboratory temperature as spec
48、ified 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 6804:2016ISO 6804:2016(E) 8.5 Resistance to kinking The kinking test
49、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 in 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. 1 Key 1 directio
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