EN ISO 18752:2016

SLOVENSKI STANDARD
01-oktober-2016
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Rubber hoses and hose assemblies - Wire- or textile-reinforced single-pressure types for
hydraulic applications - Specification (ISO 18752:2014)
Gummischläuche und -schlauchleitungen - Draht- oder textilverstärkte Einzeldrucktypen
für hydraulische Anwendungen - Anforderungen (ISO 18752:2014)
Tuyaux et flexibles en caoutchouc - Types hydrauliques avec armature de fils
métalliques tressés - Spécifications (ISO 18752:2014)
Ta slovenski standard je istoveten z: EN ISO 18752:2016
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 18752
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2016
EUROPÄISCHE NORM
ICS 23.040.70
English Version
Rubber hoses and hose assemblies - Wire- or textile-
reinforced single-pressure types for hydraulic applications
- Specification (ISO 18752:2014)
Tuyaux et flexibles en caoutchouc - Types hydrauliques Gummischläuche und -schlauchleitungen - Draht- oder
avec armature de fils métalliques tressés - textilverstärkte Einzeldrucktypen für hydraulische
Spécifications (ISO 18752:2014) Anwendungen - Anforderungen (ISO 18752:2014)
This European Standard was approved by CEN on 12 June 2016.

CEN members are bound to comply with the CEN/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 Centre 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 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18752:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
The text of ISO 18752:2014 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber
products” of the International Organization for Standardization (ISO) and has been taken over as EN
ISO 18752:2016 by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”
the secretariat of which is held by DIN.
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 January 2017, and conflicting national standards shall
be withdrawn at the latest by January 2017.
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.
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 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 18752:2014 has been approved by CEN as EN ISO 18752:2016 without any modification.

INTERNATIONAL ISO
STANDARD 18752
Third edition
2014-04-01
Rubber hoses and hose assemblies —
Wire- or textile-reinforced single-
pressure types for hydraulic
applications — Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature de fils métalliques tressés — Spécifications
Reference number
ISO 18752:2014(E)
©
ISO 2014
ISO 18752:2014(E)
© ISO 2014
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 internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 18752:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
4.1 Classes . 2
4.2 Grades and types . 2
5 Materials and construction . 3
5.1 Hoses . 3
5.2 Hose assemblies . 3
6 Dimensions and tolerances . 4
6.1 Diameters . 4
6.2 Cover thickness . 6
6.3 Concentricity. 6
7 Physical properties . 7
7.1 Fluid resistance of rubber compounds . 7
7.2 Performance requirements . 7
8 Frequency of testing .10
9 Marking .10
9.1 Hoses .10
9.2 Hose assemblies .10
10 Recommendations for packaging and storage .11
11 Test report .11
Annex A (normative) Type tests and routine tests .12
Annex B (informative) Production acceptance tests .13
Annex C (informative) Recommendations for tolerances on lengths of hose assemblies .14
Annex D (informative) Information to be provided by hose manufacturer .15
Bibliography .16
ISO 18752:2014(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 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, Hoses (rubber and plastics).
This third edition cancels and replaces the second edition (ISO 18752:2012), of which it constitutes a
minor revision, to include data of “Class 490” in Table 7.
iv © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 18752:2014(E)
Rubber hoses and hose assemblies — Wire- or textile-
reinforced single-pressure types for hydraulic applications
— Specification
1 Scope
This International Standard specifies requirements for ten classes, four grades and seven types of wire-
or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each
class has a single maximum working pressure for all sizes. Such hoses are suitable for use with hydraulic
fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from –40 °C to +100 °C
for types AS, AC, BS and BC and –40 °C to +120 °C for types CS, CC and DC.
This International Standard does not include requirements for the connection ends. It is limited to the
performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed
by the lowest maximum working pressure of the components.
NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the
compatibility of the hose with the fluid to be used.
2 Normative references
The following referenced documents are indispensable for the application 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 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing
ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum
ISO 7326:2006, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8033:2006, Rubber and plastics hoses — Determination of adhesion between components
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
ISO 8331, Rubber and plastics hoses and hose assemblies — Guidelines for selection, storage, use and
maintenance
ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1:
Bending tests at ambient temperature
ISO 10619-2:2011, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 2: Bending tests at sub-ambient temperatures
ISO 17165-1, Hydraulic fluid power — Hose assemblies — Part 1: Dimensions and requirements
ISO 18752:2014(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
4 Classification
4.1 Classes
Ten classes of hose are specified, distinguished by their maximum working pressure, as shown in Table 1.
Each class may be manufactured in up to 14 nominal sizes.
Table 1 — Classes and nominal sizes
Class 35 70 140 210 250 280 350 420 490 560
a
MWP (MPa) 3,5 7 14 21 25 28 35 42 49 56
a
MWP (bar) 35 70 140 210 250 280 350 420 490 560
Nominal size
5 X X X X X X X X N/A N/A
6,3 X X X X X X X X N/A N/A
8 X X X X X X X X N/A N/A
10 X X X X X X X X N/A N/A
12,5 X X X X X X X X N/A N/A
16 X X X X X X X X X X
19 X X X X X X X X X X
25 X X X X X X X X X X
31,5 X X X X X X X X X X
38 X X X X X X X X N/A N/A
51 X X X X X X X X N/A N/A
63 X X X X X X X N/A N/A N/A
76 X X X N/A N/A N/A N/A N/A N/A N/A
...