ISO 4642-2:2015
(Main)Rubber and plastics hoses, non-collapsible, for fire-fighting service — Part 2: Semi-rigid hoses (and hose assemblies) for pumps and vehicles
Rubber and plastics hoses, non-collapsible, for fire-fighting service — Part 2: Semi-rigid hoses (and hose assemblies) for pumps and vehicles
ISO 4642-2:2015 specifies the requirements and test methods for semi-rigid reel hoses for use on fire-fighting vehicles and trailer pumps. The hoses are intended for use at a maximum working pressure of 1,5 MPa for normal pressure hoses (category I) and 4,0 MPa for high pressure hoses (category II). The hoses are further subdivided into types and classes (see Clause 4). ISO 4642-2:2015 applies to delivery hoses for fire-fighting purposes intended for use at a minimum ambient temperature of −20 °C. Hoses conforming to this part of ISO 4642 are intended to be used with fire hose couplings conforming to the relevant national standards couplings. Requirements are also given for hose assemblies (see 6.12) where these are fitted by the hose manufacturer. NOTE 1 Hoses for use at temperatures lower than −20 °C can be supplied by agreement between the manufacturer and purchaser. NOTE 2 All pressures are expressed in megapascals where 1 MPa = 10 bar.
Tuyaux en caoutchouc et en plastique, non aplatissables, pour la lutte contre l'incendie — Partie 2: Tuyaux (et flexibles) semi-rigides pour pompes et véhicules
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 4642-2
Second edition
2015-12-01
Rubber and plastics hoses, non-
collapsible, for fire-fighting service —
Part 2:
Semi-rigid hoses (and hose
assemblies) for pumps and vehicles
Tuyaux en caoutchouc et en plastique, non aplatissables, pour la lutte
contre l’incendie —
Partie 2: Tuyaux (et flexibles) semi-rigides pour pompes et véhicules
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
4.1 General . 2
4.2 Classification by types (hose construction) . 2
4.3 Classification by class (materials for lining and cover) . 2
4.4 Classification by category . 3
5 Dimensions, tolerances and maximum mass . 3
5.1 Inside diameter and maximum mass. 3
5.2 Length and tolerances on length . 3
5.3 Concentricity. 4
6 Performance requirements of finished hose . 4
6.1 Hydrostatic requirements . 4
6.1.1 Deformation under maximum working pressure . 4
6.1.2 Deformation under proof pressure . 4
6.1.3 Minimum burst pressure . 4
6.1.4 Kink pressure . 4
6.2 Adhesion . 4
6.3 Accelerated ageing . 5
6.4 Abrasion resistance . 5
6.4.1 General. 5
6.4.2 Abrasion resistance of class 5 and class 6 hoses . 5
6.4.3 Abrasion resistance of classes 1, 2, 3 and 4 hoses . 5
6.5 Low temperature flexibility . 5
6.6 Hot surface resistance . 5
6.7 Ozone resistance. 6
6.8 Bending and crush resistance . 6
6.9 UV resistance (xenon arc lamp) . 6
6.10 Loss in mass on heating . 6
6.11 Deformation under crushing (type C only) . 6
6.12 Hose assemblies . 6
7 Frequency of testing . 6
8 Type tests . 7
9 Test report . 7
10 Recommendation for packaging and storage . 7
11 Marking . 7
Annex A (normative) Kink pressure test . 8
Annex B (normative) Accelerated ageing test . 9
Annex C (normative) Surface abrasion resistance test .10
Annex D (normative) Point abrasion resistance test .12
Annex E (normative) Hot surface resistance test .15
Annex F (normative) Bending and crush resistance test .20
Annex G (normative) Deformation under crushing test .22
Annex H (normative) Adhesion test (lay-flat fire-fighting hoses) .24
Annex I (normative) Test for fire-fighting hose assemblies .26
Annex J (normative) Type test and routine test .27
Annex K (informative) Production tests .28
Bibliography .29
iv © ISO 2015 – All rights reserved
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 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 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 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 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 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 and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
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 second edition cancels and replaces the first edition (ISO 4642-2:2009), 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 pumps and vehicles
Introduction
This part of ISO 4642 is mainly concerned with fire service semi-rigid delivery hoses and incorporates
those hoses used manually to control and extinguish fires.
vi © ISO 2015 – All rights reserved
INTERNATIONAL STANDARD ISO 4642-2:2015(E)
Rubber and plastics hoses, non-collapsible, for fire-
fighting service —
Part 2:
Semi-rigid hoses (and hose assemblies) for pumps and
vehicles
1 Scope
This part of ISO 4642 specifies the requirements and test methods for semi-rigid reel hoses for use on
fire-fighting vehicles and trailer pumps. The hoses are intended for use at a maximum working pressure
of 1,5 MPa for normal pressure hoses (category I) and 4,0 MPa for high pressure hoses (category II). The
hoses are further subdivided into types and classes (see Clause 4).
This part of ISO 4642 applies to delivery hoses for fire-fighting purposes intended for use at a minimum
ambient temperature of −20 °C.
Hoses conforming to this part of ISO 4642 are intended to be used with fire hose couplings conforming
to the relevant national standards couplings.
Requirements are also given for hose assemblies (see 6.12) where these are fitted by the hose
manufacturer.
NOTE 1 Hoses for use at temperatures lower than −20 °C can be supplied by agreement between the
manufacturer and purchaser.
NOTE 2 All pressur
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