1、BSI Standards PublicationBS ISO 4642-1:2015Rubber and plastics hoses, non-collapsible, for fire-fightingservicePart 1: Semi-rigid hoses for fixed systemsBS ISO 4642-1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 4642-1:2015.The UK participation in its p
2、reparation 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 not purport to include all the necessaryprovisions of a contract. Users a
3、re responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 89070 3ICS 13.220.10; 83.140.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori
4、ty of theStandards Policy and Strategy Committee on 31 December 2015.Amendments issued since publicationDate Text affectedBS ISO 4642-1:2015 ISO 2015Rubber and plastics hoses, non-collapsible, for fire-fighting service Part 1: Semi-rigid hoses for fixed systemsTuyaux en caoutchouc et en plastique, n
5、on aplatissables, pour la lutte contre lincendie Partie 1: Tuyaux semi-rigides pour systmes fixesINTERNATIONAL STANDARDISO4642-1Second edition2015-12-01Reference numberISO 4642-1:2015(E)BS ISO 4642-1:2015ISO 4642-1:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Publishe
6、d 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, without prior written permission. Permission
7、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 ISO 4642-1:2015ISO 4642-1:2015(E)Foreword
8、 ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 24.1 General . 24.2 Classification by types (hose construction) . 24.3 Classification by class (materials for lining and cover) . 25 Dimensions, tolerances and maximum mass . 35.1 Inside diameter and maxi
9、mum mass. 35.2 Length and tolerances on length . 36 Performance requirements of finished hose 36.1 Hydrostatic requirements . 36.1.1 Deformation under maximum working pressure . 36.1.2 Deformation under proof pressure 36.1.3 Minimum burst pressure 46.1.4 Kink pressure 46.2 Adhesion . 46.3 Accelerate
10、d ageing . 46.4 Low temperature flexibility . 46.5 Hot surface resistance 46.6 Ozone resistance 46.7 Bending and crush resistance 56.8 UV resistance (xenon arc lamp) . 56.9 Loss in mass on heating 57 Frequency of testing 58 Type tests . 59 Test report . 510 Recommendation for packaging and storage .
11、 511 Marking 5Annex A (normative) Kink pressure test 7Annex B (normative) Accelerated ageing test . 8Annex C (normative) Hot surface resistance test 9Annex D (normative) Bending and crush resistance test 14Annex E (normative) Type test and routine test .16Annex F (informative) Production test 17Bibl
12、iography .18 ISO 2015 All rights reserved iiiContents PageBS ISO 4642-1:2015ISO 4642-1:2015(E)ForewordISO (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
13、 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 committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO
14、 collaborates closely with the International Electrotechnical Commission (IEC) on all matters 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 a
15、pproval 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 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be th
16、e 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 document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any
17、 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 and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in th
18、e Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.This second edition cancels and replaces the first edi
19、tion (ISO 4642-1:2009), of which it constitutes a minor revision.ISO 4642 consists of the following parts, under the general title Rubber and plastics hoses, non-collapsible, for fire-fighting service: Part 1: Semi-rigid hoses for fixed systems Part 2: Semi-rigid hoses (and hose assemblies) for pump
20、s and vehiclesiv ISO 2015 All rights reservedBS ISO 4642-1:2015ISO 4642-1:2015(E)IntroductionA fixed system is a manually operated unit installed in a building in order to make it possible for the occupants to control and extinguish a small fire. The system consists of fixed units mounted on walls o
21、r in cabinets permanently connected to a water supply. The fixed units are composed of a coupling, a valve, a semi-rigid water-filled hose with its support and a nozzle. ISO 2015 All rights reserved vBS ISO 4642-1:2015BS ISO 4642-1:2015Rubber and plastics hoses, non-collapsible, for fire-fighting se
22、rvice Part 1: Semi-rigid hoses for fixed systems1 ScopeThis part of ISO 4642 specifies the requirements and test methods for semi-rigid reel hoses for fire-fighting purposes for use with fixed systems. The hoses are intended for use at a maximum working pressure of 1,2 MPa for hoses of 19 mm and 25
23、mm inside diameter and 0,7 MPa for hoses of 33 mm inside diameter.Hoses conforming to this part of ISO 4642 are intended for applications where long intervals can occur between the occasions of use, for example on fixed fire hose reels in buildings and other construction works.This part of ISO 4642
24、applies exclusively to hoses for fire-fighting purposes intended for use at ambient conditions in non-aggressive or non-corrosive atmospheres within the temperature range 20 C to +60 C.NOTE 1 Hoses for use at temperatures lower than 20 C can be supplied at the request of the purchaser.NOTE 2 All pre
25、ssures are expressed in megapascals where 1 MPa = 10 bar.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 applies. For undated references, the latest
26、 edition of the referenced document (including any amendments) applies.ISO 176:2005, Plastics Determination of loss of plasticizers Activated carbon methodISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance testsISO 1307, Rubber and plastics hoses Hose sizes, minimum
27、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 hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 7326:2006, Rub
28、ber and plastics hoses Assessment of ozone resistance under static conditionsISO 8033, Rubber and plastics hose Determination of adhesion between componentsISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selecti
29、on, storage, use and maintenanceISO 10619-2:2011, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperaturesINTERNATIONAL STANDARD ISO 4642-1:2015(E) ISO 2015 All rights reserved 1BS ISO 4642-1:2015ISO 4642-1:2015(E)3 Terms and def
30、initionsFor the purposes of this document, the terms and definitions given in ISO 8330 and the following apply.3.1semi-rigid hosehose that maintains its round cross-section even when unpressurized4 Classification4.1 GeneralAll types and classes of hose shall be so flexible that they can be rolled an
31、d kept on a drum of minimum diameter 200 mm for 19 mm inside diameter and 25 mm inside diameter hose and of minimum diameter 280 mm for 33 mm inside diameter hose.Hoses shall be one of two types distinguished by their construction. Each hose type shall be further divided into classes distinguished b
32、y the materials used for lining and cover.4.2 Classification by types (hose construction)4.2.1 Type A hoses shall consist of:a) a seamless rubber or plastics lining;b) a textile reinforcement with or without a rigid spiral helix;c) a rubber or plastics cover.4.2.2 Type B hoses shall consist of:a) a
33、seamless rubber or plastics lining;b) a circular woven textile reinforcement with a rigid spiral helix;c) an uncovered or rubber or plastics cover.4.3 Classification by class (materials for lining and cover)The hose types shall be further subdivided into six classes dependent on the materials used i
34、n their construction, in accordance with Table 1.Table 1 Classes and materialsClass Lining material Cover material1 rubber rubber2 plastics plastics3 rubber plastics4 plastics rubber5 rubber no cover6 plastics no cover2 ISO 2015 All rights reservedBS ISO 4642-1:2015ISO 4642-1:2015(E)5 Dimensions, to
35、lerances and maximum mass5.1 Inside diameter and maximum massThe inside diameter of the hose, when measured in accordance with ISO 4671, shall conform to the requirements given in Table 2. The mass per metre length of the hose shall be in accordance with Table 2.Table 2 Inside diameter, tolerances o
36、n inside diameter and maximum mass per unit lengthInside diameter Tolerances for inside diameterMass per unit lengthkg/mmm mm Type A Type Bmax. max.19 0,5 to +1,0 0,75 0,2525 1,0 0,90 0,3533 1,0 to +1,5 1,00 0,505.2 Length and tolerances on lengthThe total length of hose supplied shall be in accorda
37、nce with the purchasers requirements and shall be stated in metres. Tolerance on length shall be in accordance with ISO 1307.6 Performance requirements of finished hose6.1 Hydrostatic requirements6.1.1 Deformation under maximum working pressureThe dimensional stability of the hose, when tested in ac
38、cordance with ISO 1402, shall conform to the requirements given in Table 3. The length of the test piece shall be 1 m.For 19 mm and 25 mm inside diameter hoses, the initial test pressure shall be 0,07 MPa and the final test pressure shall be 1,2 MPa. For 33 mm inside diameter hose, the initial test
39、pressure shall be 0,07 MPa and the final test pressure shall be 0,7 MPa.The twist shall be no greater than 30 m1for type A. For type B, the twist may be greater than 30 m1but in this case it shall only be in a direction which closes the coupling and shall be stated in the test report.Table 3 Change
40、in length and external diameterTolerances for type A Tolerances for type B% %Change in length 0 to +7,5 0 to +5,0Change in external diameter 0 to +7,5 0 to +5,06.1.2 Deformation under proof pressureA proof pressure hold test shall be carried out on three hose lengths each of 1 m in accordance with I
41、SO 1402. The proof pressure shall be as given in Table 4 and, on examination during the test, the test pieces shall not show any evidence of leakage, cracking, abrupt distortion or other signs of failure. ISO 2015 All rights reserved 3BS ISO 4642-1:2015ISO 4642-1:2015(E)Table 4 Maximum working press
42、ure, proof pressure and minimum burst pressureInside diameterMaximum work-ing pressureProof pressureMinimum burst pressureMPa MPa MPa19 mm and 25 mm 1,2 2,4 4,233 mm 0,7 1,4 2,456.1.3 Minimum burst pressureA burst pressure test shall be carried out in accordance with ISO 1402 on the three test piece
43、s used for the deformation under proof pressure test, until the hose bursts.None of the test pieces shall burst at a pressure less than that given in Table 4.6.1.4 Kink pressureWhen tested in accordance with Annex A, the test piece shall neither burst nor show any visible signs of defect before or a
44、fter pressurizing at 1,2 MPa for 19 mm and 25 mm inside diameter hoses and at 0,7 MPa for 33 mm inside diameter hose.6.2 AdhesionWhen tested in accordance with ISO 8033, the adhesion between all components shall be not less than 1,5 kN/m for type A hoses and 1,0 kN/m for type B hoses. Dependant on t
45、he construction of the hose, the test piece in either case shall be decided by the test laboratory in accordance with ISO 8033.6.3 Accelerated ageingWhen tested in accordance with Annex B, the three test pieces subjected to the burst pressure test shall conform to the requirements of 6.1.3. The mean
46、 of the burst pressure test results shall not decrease by more than 25 % from the initial mean burst value determined from the results obtained in 6.1.3.The resultant adhesion of the fourth test piece shall be in accordance with the requirements of 6.2.NOTE There is no limitation on the increase in
47、the values of these properties.6.4 Low temperature flexibilityThe test shall be carried out in accordance with ISO 10619-2:2011, Clause 5 (Method B) using a mandrel of outside diameter equal to 12 the inside diameter of the hose. After bending the hose round the mandrel through 180 for (10 2) s at a
48、 temperature of (20 2) C, or lower if requested, it shall not show any signs of breaking or cracking and shall meet the proof pressure requirement given in Table 4.6.5 Hot surface resistanceFor all types and classes, when tested in accordance with Annex C at a test temperature of (200 2) C, in none
49、of the four tests shall leakage occur less than 60 s after application of the filament rod.6.6 Ozone resistanceAfter carrying out an ozone resistance test in accordance with ISO 7326:2006, 8.1 (Method 1) for all inside diameter sizes and types, the hose lining and cover shall not show any signs of cracking. The lining shall be examined by slitting the hose wall.4 ISO 2015 All rights reservedBS ISO 4642-1:2015ISO 4642-1:2015(E)6.7 Bending and crush resistanceWhen tested in accordance with Annex D
