ISO/FDIS 11237.2

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ISO/TC 45/SC 1
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Secretariat: DIN
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Date: 2024-11-202025-02-17
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Rubber hoses and hose assemblies — Compact wire-braid-reinforced
0 pt, Tab stops: Not at 18 pt
hydraulic types for oil-based or water-based fluids — Specification
Style Definition: a3: Outline numbered + Level: 3 +
Numbering Style: 1, 2, 3, … + Start at: 1 + Alignment:
Tuyaux et flexibles en caoutchouc — Types hydrauliques compacts avec armature de fils métalliques tressés
Left + Aligned at: 0 pt + Tab after: 36 pt + Indent at:
pour fluides à base d'huile ou à base d'eau — Spécifications
0 pt, Tab stops: Not at 36 pt
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FDIS stage
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Formatted: French (Switzerland)

ISO/FDIS 11237:2024.2:2025(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Formatted: English (United Kingdom)
Phone: + 41 22 749 01 11
E-mail: copyright@iso.org
Website: www.iso.org
Formatted: English (United Kingdom)
Formatted: English (United Kingdom)
Published in Switzerland
Formatted: English (United Kingdom)

ii
ISO/FDIS 11237:2024.2:2025(en)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
5 Materials and construction . 2
5.1 Hoses . 2
5.2 Hose assemblies . 2
6 Dimensions . 2
6.1 Hose diameters . 2
6.2 Concentricity . 5
6.3 Hose cover thickness . 5
7 Performance requirements . 5
7.1 General . 5
7.2 Change in length requirements. 5
7.3 Hydrostatic requirements . 6
7.4 Minimum bend radius . 7
7.5 Resistance to impulse . 8
7.6 Leakage of hose assemblies . 8
7.7 Low temperature flexibility . 8
7.8 Adhesion between components . 8
7.9 Vacuum resistance . 8
7.10 Fluid resistance . 9
7.11 Ozone resistance . 10
7.12 Visual examination . 10
8 Frequency of testing . 10
9 Marking . 10
9.1 Hoses . 10
9.2 Hose assemblies . 11
10 Length of supplied hoses and hose assemblies . 11
Annex A (normative) Test frequency for type tests and routine tests . 12
Annex B (informative) Lengths of supplied hoses and length tolerances for hose assemblies . 13
Bibliography . 14

iii
ISO/FDIS 11237:2024.2:2025(en)
Foreword Formatted: Tab stops: Not at 332.05 pt
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 documentsdocument 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Rubber and plastics hoses and hose assemblies.
This third edition cancels and replaces the second edition (ISO 11237:2017), which has been technically
revised.
The main changes are as follows:
— revision of the scope has been revised to align the water -based fluids and water temperatures with
ISO 1436, ISO 3862 and ISO 18752;
— deletion of subclauses 7.5.2 and 7.5.3 on water based and optional impulse tests have been deleted;
— subclause 7.10.1 has been revisedrevision of subclause 7.10.1 to align the document with ISO 1817 fluid
immersion requirements specified in ISO 1817;
— a newaddition of subclause 7.10.3, on water based fluid resistance, has been added;
— addition of new hose sizes have been added to type 2SC in Tables 1, 3, 4, 5, 6 and 7;
— revision of Clause 8 has been revised to cite Annex A;
— revision of Clause 9 has been revised;
— ;
— revision of Annex A has been revised to align the document with ISO 1436 and has been deleted.
iv
ISO/FDIS 11237:2024.2:2025(en)
— A list of all parts in the ISO 11237 series can be found on the ISO website.
Formatted: Foreword Text
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
ISO/FDIS 11237:2024.2:2025(en)
Rubber hoses and hose assemblies — Compact wire-braid-reinforced
hydraulic types for oil-based or water-based fluids — Specification
1 Scope
This document specifies requirements for five types of compact, wire-braid-reinforced hoses and hose
assemblies of nominal size from 5 to 76.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from
−40 °C to +100 °C;
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C
to +70 °C;
— water at temperatures ranging from 0 °C to +70 °C.
This document does not include requirements for end fittings. It is limited to requirements for 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 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 latest edition of the referenced document (including any amendments) applies.
ISO 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances on
cut-to-length hoses
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 6605, Hydraulic fluid power — Test methods for hoses and 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, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8033:2016, Rubber and plas
...

FINAL DRAFT
International
Standard
ISO/FDIS 11237
ISO/TC 45/SC 1
Rubber hoses and hose
Secretariat: DIN
assemblies — Compact wire-braid-
Voting begins on:
reinforced hydraulic types for
2024-07-30
oil-based or water-based fluids —
Voting terminates on:
Specification
2024-09-24
Tuyaux et flexibles en caoutchouc — Types hydrauliques
compacts avec armature de fils métalliques tressés pour fluides à
base d'huile ou à base d'eau — Spécifications
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 11237:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 11237:2024(en)
International
Standard
ISO/FDIS 11237
ISO/TC 45/SC 1
Rubber hoses and hose
Secretariat: DIN
assemblies — Compact wire-braid-
Voting begins on:
reinforced hydraulic types for
oil-based or water-based fluids —
Voting terminates on:
Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques
compacts avec armature de fils métalliques tressés pour fluides à
base d'huile ou à base d'eau — Spécifications
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 11237:2024(en) © ISO 2024

ii
ISO/FDIS 11237:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
5 Materials and construction . 2
5.1 Hoses .2
5.2 Hose assemblies .2
6 Dimensions . 2
6.1 Hose diameters and cover thickness .2
6.2 Concentricity .4
6.3 Hose cover thickness .4
7 Performance requirements . . 4
7.1 General .4
7.2 Change in length requirements .4
7.3 Hydrostatic requirements .5
7.4 Minimum bend radius .6
7.5 Resistance to impulse.7
7.6 Leakage of hose assemblies .7
7.7 Low temperature flexibility .7
7.8 Adhesion between components .7
7.9 Vacuum resistance .7
7.10 Fluid resistance . . .8
7.10.1 General .8
7.10.2 Oil resistance .8
7.10.3 Water-based fluid resistance .8
7.10.4 Water resistance .8
7.11 Ozone resistance .8
7.12 Visual examination .9
8 Frequency of testing . . 9
9 Marking . . 9
9.1 Hoses .9
9.2 Hose assemblies .9
10 Recommendations for length of supplied hoses and tolerances on lengths of hose
assemblies . 10
Annex A (normative) Test frequency for type tests and routine tests .11
Annex B (informative) Recommendations for lengths of supplied hoses and length tolerances
for hose assemblies .12
Bibliography .13

iii
ISO/FDIS 11237:2024(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Rubber and plastics hoses and hose assemblies.
This third edition cancels and replaces the second edition (ISO 11237:2017), which has been technically
revised.
The main changes are as follows:
— the scope has been revised to align the water based and water temperatures with ISO 1436, ISO 3862 and
ISO 18752;
— subclauses 7.5.2 and 7.5.3 on water based and optional impulse tests have been deleted;
— a new subclause 7.10.3, on water based fluid resistance, has been added;
— new hose sizes have been added to type 2SC in Tables 1, 3, 4, 5, 6 and 7;
— Clause 8 has been revised to cite Annex A;
— Clause 9 has been revised;
— Annex A has been revised to align the document with ISO 1436 and Annex B has been deleted.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
FINAL DRAFT International Standard ISO/FDIS 11237:2024(en)
Rubber hoses and hose assemblies — Compact wire-braid-
reinforced hydraulic types for oil-based or water-based fluids
— Specification
1 Scope
This document specifies requirements for five types of compact, wire-braid-reinforced hoses and hose
assemblies of nominal size from 5 to 76.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from
−40 °C to +100 °C;
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from
0 °C to +70 °C;
— water at temperatures ranging from 0 °C to +70 °C.
This document does not include requirements for
...

ISO /FDIS 11237:2024(E)
ISO /TC 45/SC 1/WG 3
Secretariat: DIN
Date: 2024-06-02507-16
Rubber hoses and hose assemblies — Compact wire-braid-reinforced
hydraulic types for oil-based or water-based fluids — Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques compacts avec armature de fils métalliques tressés
pour fluides à base d'huile ou à base d'eau —- — Spécifications
FDIS stage
ISO/DIS FDIS 11237:2024(Een)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 2024 – All rights reserved
ii
ISO/DIS FDIS 11237:2024(Een)
Contents
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification. 2
5 Materials and construction . 2
5.1 Hoses . 2
5.2 Hose assemblies . 2
6 Dimensions. 2
6.1 Hose diameters and cover thickness . 2
6.2 Concentricity . 4
6.3 Hose cover thickness . 4
7 Performance requirements . 4
7.1 General. 4
7.2 Change in length requirements . 4
7.3 Hydrostatic requirements . 5
7.4 Minimum bend radius . 6
7.5 Resistance to impulse . 7
7.6 Leakage of hose assemblies . 7
7.7 Low temperature flexibility . 7
7.8 Adhesion between components . 7
7.9 Vacuum resistance . 7
7.10 Fluid resistance . 8
7.10.1 General. 8
7.10.2 Oil resistance . 8
7.10.3 Water-based fluid resistance . 8
7.10.4 Water resistance . 9
7.11 Ozone resistance . 9
7.12 Visual examination . 9
8 Frequency of testing . 9
9 Marking . 9
9.1 Hoses . 9
9.2 Hose assemblies . 10
10 Recommendations for length of supplied hoses and tolerances on lengths of hose
assemblies . 10
Annex A (normative) Test frequency for type tests and routine tests . 11
Annex B (informative) Recommendations for lengths of supplied hoses and length tolerances
for hose assemblies . 13
B.1 Hoses . 13
B.2 Hose assemblies . 13
Bibliography . 14

Foreword . iv
1 Scope . 1
iii
ISO/DIS FDIS 11237:2024(Een)
2 Normative references . 1
3 Terms and definitions . 2
4 Classification. 2
5 Materials and construction . 2
5.1 Hoses . 2
5.2 Hose assemblies . 2
6 Dimensions. 2
6.1 Hose diameters and cover thickness . 2
6.2 Concentricity . 4
6.3 Hose cover thickness . 4
7 Performance requirements . 4
7.1 General. 4
7.2 Change in length requirements . 4
7.3 Hydrostatic requirements . 5
7.4 Minimum bend radius . 6
7.5 Resistance to impulse . 6
7.6 Leakage of hose assemblies . 7
7.7 Low temperature flexibility . 7
7.8 Adhesion between components . 7
7.9 Vacuum resistance . 7
7.10 Fluid resistance . 8
7.10.1 General. 8
7.10.2 Oil resistance . 8
7.10.3 Water-based fluid resistance . 8
7.10.4 Water resistance . 8
7.11 Ozone resistance . 8
7.12 Visual examination . 8
8 Frequency of testing . 8
9 Marking . 9
9.1 Hoses . 9
9.2 Hose assemblies . 9
10 Recommendations for length of supplied hoses and tolerances on lengths of hose
assemblies . 10
Annex A (normative) Type and routine tests . 11
Annex B (informative) Recommendations for lengths of supplied hoses and length tolerances
for hose assemblies . 13
B.1 Hoses . 13
B.2 Hose assemblies . 13
iv © ISO 2023 2024 – All rights reserved
iv
ISO/DIS FDIS 11237:2024(Een)
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 organ
...