ISO 19013-1:2019
(Main)Rubber hoses and tubing for fuel circuits for internal combustion engines — Specification — Part 1: Diesel fuels
Rubber hoses and tubing for fuel circuits for internal combustion engines — Specification — Part 1: Diesel fuels
This document specifies the requirements for rubber tubing and hoses used in diesel fuel circuits for internal combustion engines. The diesel fuels covered include "bio-diesels" which consist of the methyl ester of rape seed oil at levels up to 20 % by volume in conventional diesel fuels. This document can also be applied as a classification system to enable original equipment manufacturers (OEMs) to detail a "line call-out" of tests for specific applications where these are not covered by the main types specified (see example in Annex E). In this case, the hose or tubing would not carry any marking showing the number of this document but can detail the OEM's own identification markings as shown on their part drawings.
Tuyaux de caoutchouc et flexibles pour les circuits de carburant pour les moteurs à combustion interne — Spécifications — Partie 1: Carburants diesel
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INTERNATIONAL ISO
STANDARD 19013-1
Second edition
2019-07
Rubber hoses and tubing for fuel
circuits for internal combustion
engines — Specification —
Part 1:
Diesel fuels
Tuyaux de caoutchouc et flexibles pour les circuits de carburant pour
les moteurs à combustion interne — Spécifications —
Partie 1: Carburants diesel
Reference number
©
ISO 2019
© ISO 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
5 Sizes . 3
5.1 Tubing . 3
5.2 Hoses . 3
6 Performance requirements for hose and tubing . 4
7 Frequency of testing . 6
8 Marking . 6
Annex A (normative) Cleanliness and extractables test. 7
Annex B (normative) Resistance of tubing to tearing . 9
Annex C (normative) Method for determining the resistance to surface contamination .12
Annex D (normative) Life-cycle test .13
Annex E (informative) Example of how a non-standard type of hose or tubing could be
specified by an original equipment manufacturer (OEM) using a matrix .14
Annex F (normative) Type approval tests (as defined in Clause 6) .15
Annex G (normative) Routine tests (as defined in Clause 7) .16
Annex H (informative) Production acceptance tests .17
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 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 second edition cancels and replaces the first edition (ISO 19013-1:2005), of which it constitutes a
minor revision.
The main changes compared to the previous edition are as follows:
— Normative references have been updated;
— Clause 3 “Terms and definitions” has been introduced to conform to ISO/IEC Directives, Part 2, 2018;
— Editorial changes in Clause 8 “Marking” have been made.
A list of all parts in the ISO 19013 series can be found on the ISO website.
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 © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 19013-1:2019(E)
Rubber hoses and tubing for fuel circuits for internal
combustion engines — Specification —
Part 1:
Diesel fuels
WARNING — Persons using this document should be familiar with normal laboratory practice.
This document does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices.
1 Scope
This document specifies the requirements for rubber tubing and hoses used in diesel fuel circuits for
internal combustion engines. The diesel fuels covered include “bio-diesels” which consist of the methyl
ester of rape seed oil at levels up to 20 % by volume in conventional diesel fuels.
This document can also be applied as a classification system to enable original equipment manufacturers
(OEMs) to detail a “line call-out” of tests for specific applications where these are not covered by the
main types specified (see example in Annex E). In this case, the hose or tubing would not carry any
marking showing the number of this document but can detail the OEM's own identification markings as
shown on their part drawings.
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 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1629, Rubber and latices — Nomenclature
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 3302-1, Rubber — Tolerances for products — Part 1: Dimensional tolerances
ISO 4926, Road vehicles — Hydraulic braking systems — Non-petroleum-base reference fluids
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 6133, Rubber and plastics — Analysis of multi-peak traces obtained in determinations of tear strength
and adhesion strength
ISO 7233:2016, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum
ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and
conductivity
ISO 8033, Rubber and plastics hoses — Determination of adhesion between components
ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 1: Bending tests at ambient temperature
ISO 10619-2, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 2:
Bending tests at sub-ambient temperatures
ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods
SAE J2027, Standard for Protective Covers for Gasoline Fuel Line Tubing
SAE J2044: 2009, Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems
SAE J2260, Nonmetallic Fuel System Tubing with One or More Layers
EN 14214, Automotive fuels — Fatty acid methyl esters (FAME) for diesel engines — Requirements and
test methods
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Classification
The product shall consist of extruded rubber materials with or without an integral reinforcement
which may or may not be pre-formed before final vulcanization. The product may also have a rubber
or thermoplastic barrier layer, either as an internal layer or forming the inner liner, to impart improved
fluid resistance and/or reduced fuel vapour permeability.
Seven hoses and tubings for specific applications are specified, as follows:
— Type 1
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines from the fuel
tank to the engine compartment (−40 °C to +80 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines from the fuel
tank to the engine compartment (−40 °C to +80 °C continuous)
— Type 2
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +100 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +100 °C continuous)
— Type 3
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +125 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +125 °C continuous)
— Type 4 Low pressure [0,12 MPa (1,2 bar) working pressure] fuel filler, vent and vapour handling
(−40 °C to +80 °C continuous)
2 © ISO 2019 – All rights reserved
5 Sizes
5.1 Tubing
When determined by the methods described in ISO 4671, inside diameters and wall thicknesses shall
be as specified in Table 1.
Tolerances shall be selected from the appropriate categories specified in ISO 3302-1: M3 for moulded
hoses: E2 for extrusions.
The thickness of the barrier layer, where applicable, shall be included in the total nominal wall thickness
shown in Table 1.
Table 1 — Tubing inside diameters and wall thicknesses
Inside diameter Wall thickness
mm mm
3,5 3,5
4 3,5
5 4
7 4,5
9 4,5
11 4,5
13 4,5
NOTE For information, the unions on which the tubing is fitted have the following diameters: 4 mm, 4,5 mm,
6 mm or 6,35 mm, 8 mm, 10 mm, 12 mm and 14 mm.
5.2 Hoses
When determined by the methods described in ISO 4671, the dimensions and concentricity of hoses
shall be in accordance with Tables 2 and 3.
The thickness of the barrier layer, where applicable, shall be included in the total nominal wall thickness
shown in Table 2.
Table 2 — Hose dimensions
Dimensions in millimetres
Inside diameter Tolerance Wall thickness Outside diameter Tolerance
3,5 ±0,3 3 9,5 ±0,4
4 ±0,3 3 10 ±0,4
5 ±0,3 3 11 ±0,4
6 ±0,3 3 12 ±0,4
7 ±0,3 3 13 ±0,4
7,5 ±0,3 3 13,5 ±0,4
8 ±0,3 3 14 ±0,4
9 ±0,3 3 15 ±0,4
11 ±0,3 3,5 18 ±0,4
12 ±0,3 3,5 19 ±0,4
13 ±0,4 3,5 20 ±0,6
16 ±0,4 4 24 ±0,6
21 ±0,4 4 29 ±0,6
+05,
31,5 4,25 40 ±1
−1
+05,
40 5 50 ±1
−1
Table 3 — Hose concentricity
Maximum variation from
Inside diameter
concentricity
mm mm
Up to and including 3,5 0,4
Over 3,5 0,8
6 Performance requirements for hose and tubing
Tests shall be selected from the follo
...
INTERNATIONAL ISO
STANDARD 19013-1
Second edition
2019-07
Rubber hoses and tubing for fuel
circuits for internal combustion
engines — Specification —
Part 1:
Diesel fuels
Tuyaux de caoutchouc et flexibles pour les circuits de carburant pour
les moteurs à combustion interne — Spécifications —
Partie 1: Carburants diesel
Reference number
©
ISO 2019
© ISO 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
5 Sizes . 3
5.1 Tubing . 3
5.2 Hoses . 3
6 Performance requirements for hose and tubing . 4
7 Frequency of testing . 6
8 Marking . 6
Annex A (normative) Cleanliness and extractables test. 7
Annex B (normative) Resistance of tubing to tearing . 9
Annex C (normative) Method for determining the resistance to surface contamination .12
Annex D (normative) Life-cycle test .13
Annex E (informative) Example of how a non-standard type of hose or tubing could be
specified by an original equipment manufacturer (OEM) using a matrix .14
Annex F (normative) Type approval tests (as defined in Clause 6) .15
Annex G (normative) Routine tests (as defined in Clause 7) .16
Annex H (informative) Production acceptance tests .17
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 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 second edition cancels and replaces the first edition (ISO 19013-1:2005), of which it constitutes a
minor revision.
The main changes compared to the previous edition are as follows:
— Normative references have been updated;
— Clause 3 “Terms and definitions” has been introduced to conform to ISO/IEC Directives, Part 2, 2018;
— Editorial changes in Clause 8 “Marking” have been made.
A list of all parts in the ISO 19013 series can be found on the ISO website.
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 © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 19013-1:2019(E)
Rubber hoses and tubing for fuel circuits for internal
combustion engines — Specification —
Part 1:
Diesel fuels
WARNING — Persons using this document should be familiar with normal laboratory practice.
This document does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices.
1 Scope
This document specifies the requirements for rubber tubing and hoses used in diesel fuel circuits for
internal combustion engines. The diesel fuels covered include “bio-diesels” which consist of the methyl
ester of rape seed oil at levels up to 20 % by volume in conventional diesel fuels.
This document can also be applied as a classification system to enable original equipment manufacturers
(OEMs) to detail a “line call-out” of tests for specific applications where these are not covered by the
main types specified (see example in Annex E). In this case, the hose or tubing would not carry any
marking showing the number of this document but can detail the OEM's own identification markings as
shown on their part drawings.
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 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1629, Rubber and latices — Nomenclature
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 3302-1, Rubber — Tolerances for products — Part 1: Dimensional tolerances
ISO 4926, Road vehicles — Hydraulic braking systems — Non-petroleum-base reference fluids
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 6133, Rubber and plastics — Analysis of multi-peak traces obtained in determinations of tear strength
and adhesion strength
ISO 7233:2016, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum
ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and
conductivity
ISO 8033, Rubber and plastics hoses — Determination of adhesion between components
ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 1: Bending tests at ambient temperature
ISO 10619-2, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 2:
Bending tests at sub-ambient temperatures
ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods
SAE J2027, Standard for Protective Covers for Gasoline Fuel Line Tubing
SAE J2044: 2009, Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems
SAE J2260, Nonmetallic Fuel System Tubing with One or More Layers
EN 14214, Automotive fuels — Fatty acid methyl esters (FAME) for diesel engines — Requirements and
test methods
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Classification
The product shall consist of extruded rubber materials with or without an integral reinforcement
which may or may not be pre-formed before final vulcanization. The product may also have a rubber
or thermoplastic barrier layer, either as an internal layer or forming the inner liner, to impart improved
fluid resistance and/or reduced fuel vapour permeability.
Seven hoses and tubings for specific applications are specified, as follows:
— Type 1
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines from the fuel
tank to the engine compartment (−40 °C to +80 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines from the fuel
tank to the engine compartment (−40 °C to +80 °C continuous)
— Type 2
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +100 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +100 °C continuous)
— Type 3
— Class A = Pressurized [0,7 MPa (7 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +125 °C continuous)
— Class B = Pressurized [0,2 MPa (2 bar) working pressure] feed and return lines in the engine
compartment (−40 °C to +125 °C continuous)
— Type 4 Low pressure [0,12 MPa (1,2 bar) working pressure] fuel filler, vent and vapour handling
(−40 °C to +80 °C continuous)
2 © ISO 2019 – All rights reserved
5 Sizes
5.1 Tubing
When determined by the methods described in ISO 4671, inside diameters and wall thicknesses shall
be as specified in Table 1.
Tolerances shall be selected from the appropriate categories specified in ISO 3302-1: M3 for moulded
hoses: E2 for extrusions.
The thickness of the barrier layer, where applicable, shall be included in the total nominal wall thickness
shown in Table 1.
Table 1 — Tubing inside diameters and wall thicknesses
Inside diameter Wall thickness
mm mm
3,5 3,5
4 3,5
5 4
7 4,5
9 4,5
11 4,5
13 4,5
NOTE For information, the unions on which the tubing is fitted have the following diameters: 4 mm, 4,5 mm,
6 mm or 6,35 mm, 8 mm, 10 mm, 12 mm and 14 mm.
5.2 Hoses
When determined by the methods described in ISO 4671, the dimensions and concentricity of hoses
shall be in accordance with Tables 2 and 3.
The thickness of the barrier layer, where applicable, shall be included in the total nominal wall thickness
shown in Table 2.
Table 2 — Hose dimensions
Dimensions in millimetres
Inside diameter Tolerance Wall thickness Outside diameter Tolerance
3,5 ±0,3 3 9,5 ±0,4
4 ±0,3 3 10 ±0,4
5 ±0,3 3 11 ±0,4
6 ±0,3 3 12 ±0,4
7 ±0,3 3 13 ±0,4
7,5 ±0,3 3 13,5 ±0,4
8 ±0,3 3 14 ±0,4
9 ±0,3 3 15 ±0,4
11 ±0,3 3,5 18 ±0,4
12 ±0,3 3,5 19 ±0,4
13 ±0,4 3,5 20 ±0,6
16 ±0,4 4 24 ±0,6
21 ±0,4 4 29 ±0,6
+05,
31,5 4,25 40 ±1
−1
+05,
40 5 50 ±1
−1
Table 3 — Hose concentricity
Maximum variation from
Inside diameter
concentricity
mm mm
Up to and including 3,5 0,4
Over 3,5 0,8
6 Performance requirements for hose and tubing
Tests shall be selected from the follo
...
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