Thermoplastic tubing and hoses for automotive use — Part 1: Non-fuel applications

This document specifies the test requirements and the test methods for extruded thermoplastic tubing and hoses for use in vehicles powered by internal-combustion engines, excluding use in air braking systems (see ISO 7628), fuel lines (see ISO 13775-2), and high-pressure hydraulic systems. This document is intended especially for use by original equipment manufacturers (OEMs).

Tubes et tuyaux en thermoplastique pour l'industrie automobile — Partie 1: Applications sans carburant

General Information

Status
Published
Publication Date
16-Sep-2021
Current Stage
6060 - International Standard published
Start Date
17-Sep-2021
Completion Date
17-Sep-2021
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INTERNATIONAL ISO
STANDARD 13775-1
Third edition
2021-09
Thermoplastic tubing and hoses for
automotive use —
Part 1:
Non-fuel applications
Tubes et tuyaux en thermoplastique pour l'industrie automobile —
Partie 1: Applications sans carburant
Reference number
ISO 13775-1:2021(E)
ISO 2021
---------------------- Page: 1 ----------------------
ISO 13775-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13775-1:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Classification and materials ..................................................................................................................................................................... 2

5 Dimensions ................................................................................................................................................................................................................. 2

6 Requirements .......................................................................................................................................................................................................... 3

7 Frequency of testing .......................................................................................................................................................................................... 5

8 Marking .......................................................................................................................................................................................................................... 5

Annex A (informative) Example of how a non-standard type of hose or tubing could be

specified using a matrix ................................................................................................................................................................................ 6

Annex B (normative) Method for determining the resistance to surface-contaminating fluids ............7

Annex C (normative) Cleanliness and extractables test ................................................................................................................... 8

Annex D (normative) Type tests .............................................................................................................................................................................10

Annex E (normative) Routine tests .....................................................................................................................................................................11

Annex F (informative) Production tests .........................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................13

© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 13775-1:2021(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 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 13775-1:2015), which has been

technically revised.
The main changes compared to the previous edition are as follows:
— normative references have been updated (Clause 2);
— Clause 3 has been added.
A list of all parts in the ISO 13775 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 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 13775-1:2021(E)
Introduction

This document defines the requirements for extruded thermoplastic tubing/hoses for non-fuel

applications for automotive use. In addition, it can 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 four main types (see example in Annex A). In this case, the tubing or hose would

not carry any marking referring to this document but may detail the OEM’s own identification markings

as shown on their part drawings.
© ISO 2021 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 13775-1:2021(E)
Thermoplastic tubing and hoses for automotive use —
Part 1:
Non-fuel applications

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 health and safety practices and to

ensure compliance with any national regulatory conditions.
1 Scope

This document specifies the test requirements and the test methods for extruded thermoplastic tubing

and hoses for use in vehicles powered by internal-combustion engines, excluding use in air braking

systems (see ISO 7628), fuel lines (see ISO 13775-2), and high-pressure hydraulic systems. This

document is intended especially for use by original equipment manufacturers (OEMs).

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 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests

ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 1817:2015, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry — Determination of

burning behaviour of interior materials

ISO 3865:2020, Rubber, vulcanized or thermoplastic — Methods of test for staining in contact with organic

material

ISO 4926, Road vehicles — Hydraulic braking systems — Non-petroleum-based reference fluid

ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

ISO 7628:2010, Road vehicles — Thermoplastics tubing for air braking systems

ISO 8031:2020, 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 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1:

Bending tests at ambient temperature

ISO 30013, Rubber and plastics hoses — Methods of exposure to laboratory light sources — Determination

of changes in colour, appearance and other physical properties
© ISO 2021 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 13775-1:2021(E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Classification and materials

The product shall consist of an extruded thermoplastic material with or without an integral

reinforcement. The product may also have an inner veneer to impart improved fluid resistance and/or

heat resistance. It may also have an extruded outer cover to improve environmental resistance and/or

flame resistance. The outer cover is not necessarily bonded to the tubing or hose.

Four types of tubing and hose for specific applications are specified as follows:

— Type 1: Tubing or hose for vacuum and electronic control;
— Type 2: Tubing or hose for coolant systems;
— Type 3: Tubing or hose for screen/headlamp wash systems;
— Type 4: Tubing or hose for exhaust gas recirculation systems.
5 Dimensions
Diameters and wall thicknesses shall be as given in Table 1.

The wall thickness shall be the sum of the individual thicknesses of the various elements in the

construction of the tubing or hose. The thickness of each individual element shall be such that it is able

to carry out its own function and the total function of the tubing or hose.
Table 1 — Nominal sizes, internal diameters, and wall thicknesses
Nominal size Internal diameter Wall thickness (min.)
mm mm
2 2 ± 0,1 0,9
4 4 ± 0,1 0,9
6 6 ± 0,1 0,9
6 6 ± 0,1 1,35
7,5 7,5 ± 0,1 1,12
8 8 ± 0,1 0,9
8 8 ± 0,1 1,35
9 9 ± 0,1 1,35
10 10 ± 0,1 1,8
12 12 ± 0,1 1,35
12 12 ± 0,1 1,8
14 14 ± 0,1 1,8
2 © ISO 2021 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 13775-1:2021(E)
6 Requirements

The following tests shall be selected for each application of the tubing or hose based on the performance

requirements of the finished product. All tests shall be carried out without the unbonded protective

cover.

a) Burst pressure: When determined in accordance with ISO 1402, the minimum burst pressure for

all constructions shall be 2 MPa gauge (20 bar).

b) Proof pressure: When determined in accordance with ISO 1402, the proof pressure for all

constructions shall be 1 MPa gauge (10 bar).

c) Cold impact resistance: After cold impact testing at −40 °C in accordance with ISO 7628:2010, 9.3,

all constructions shall show no evidence of external fracture or cracking and shall meet the burst

...

INTERNATIONAL ISO
STANDARD 13775-1
Third edition
Thermoplastic tubing and hoses for
automotive use —
Part 1:
Non-fuel applications
Tubes et tuyaux en thermoplastique pour l'industrie automobile —
Partie 1: Applications sans carburant
PROOF/ÉPREUVE
Reference number
ISO 13775-1:2021(E)
ISO 2021
---------------------- Page: 1 ----------------------
ISO 13775-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13775-1:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Classification and materials ..................................................................................................................................................................... 2

5 Dimensions ................................................................................................................................................................................................................. 2

6 Requirements .......................................................................................................................................................................................................... 3

7 Frequency of testing .......................................................................................................................................................................................... 5

8 Marking .......................................................................................................................................................................................................................... 5

Annex A (informative) Example of how a non-standard type of hose or tubing could be

specified using a matrix ................................................................................................................................................................................ 6

Annex B (normative) Method for determining the resistance to surface-contaminating fluids ............7

Annex C (normative) Cleanliness and extractables test ................................................................................................................... 8

Annex D (normative) Type tests .............................................................................................................................................................................10

Annex E (normative) Routine tests .....................................................................................................................................................................11

Annex F (informative) Production tests .........................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................13

© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 13775-1:2021(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 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 13775-1:2015), which has been

technically revised.
The main changes compared to the previous edition are as follows:
— normative references have been updated (Clause 2);
— Clause 3 has been added.
A list of all parts in the ISO 13775 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 PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 13775-1:2021(E)
Introduction

This document defines the requirements for extruded thermoplastic tubing/hoses for non-fuel

applications for automotive use. In addition, it can 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 four main types (see example in Annex A). In this case, the tubing or hose would

not carry any marking referring to this document but may detail the OEM’s own identification markings

as shown on their part drawings.
© ISO 2021 – All rights reserved PROOF/ÉPREUVE v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 13775-1:2021(E)
Thermoplastic tubing and hoses for automotive use —
Part 1:
Non-fuel applications

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 health and safety practices and to

ensure compliance with any national regulatory conditions.
1 Scope

This document specifies the test requirements and the test methods for extruded thermoplastic tubing

and hoses for use in vehicles powered by internal-combustion engines, excluding use in air braking

systems (see ISO 7628), fuel lines (see ISO 13775-2), and high-pressure hydraulic systems. This

document is intended especially for use by original equipment manufacturers (OEMs).

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 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests

ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 1817:2015, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry — Determination of

burning behaviour of interior materials

ISO 3865:2020, Rubber, vulcanized or thermoplastic — Methods of test for staining in contact with organic

material

ISO 4926, Road vehicles — Hydraulic braking systems — Non-petroleum-based reference fluid

ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

ISO 7628:2010, Road vehicles — Thermoplastics tubing for air braking systems

ISO 8031:2020, 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 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1:

Bending tests at ambient temperature

ISO 30013, Rubber and plastics hoses — Methods of exposure to laboratory light sources — Determination

of changes in colour, appearance and other physical properties
© ISO 2021 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 6 ----------------------
ISO 13775-1:2021(E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

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 https:// www .electropedia .org/
4 Classification and materials

The product shall consist of an extruded thermoplastic material with or without an integral

reinforcement. The product may also have an inner veneer to impart improved fluid resistance and/or

heat resistance. It may also have an extruded outer cover to improve environmental resistance and/or

flame resistance. The outer cover is not necessarily bonded to the tubing or hose.

Four types of tubing and hose for specific applications are specified as follows:

— Type 1: Tubing or hose for vacuum and electronic control;
— Type 2: Tubing or hose for coolant systems;
— Type 3: Tubing or hose for screen/headlamp wash systems;
— Type 4: Tubing or hose for exhaust gas recirculation systems.
5 Dimensions
Diameters and wall thicknesses shall be as given in Table 1.

The wall thickness shall be the sum of the individual thicknesses of the various elements in the

construction of the tubing or hose. The thickness of each individual element shall be such that it is able

to carry out its own function and the total function of the tubing or hose.
Table 1 — Nominal sizes, internal diameters, and wall thicknesses
Nominal size Internal diameter Wall thickness (min.)
mm mm
2 2 ± 0,1 0,9
4 4 ± 0,1 0,9
6 6 ± 0,1 0,9
6 6 ± 0,1 1,35
7,5 7,5 ± 0,1 1,12
8 8 ± 0,1 0,9
8 8 ± 0,1 1,35
9 9 ± 0,1 1,35
10 10 ± 0,1 1,8
12 12 ± 0,1 1,35
12 12 ± 0,1 1,8
14 14 ± 0,1 1,8
2 PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 13775-1:2021(E)
6 Requirements

The following tests shall be selected for each application of the tubing or hose based on the performance

requirements of the finished product. All tests shall be carried out without the unbonded protective

cover.

a) Burst pressure: When determined in accordance with ISO 1402, the minimum burst pressure for

all constructions shall be 2 MPa gauge (20 bar).

b) Proof pressure: When determined in accordance with ISO 1402, the proof pressure for all

constructions shall be 1 MPa gauge (10 bar).

c) Cold impact resistance: After cold impact testing at −40 °C in accordance with ISO 7628:2010, 9.3,

all constructions shall show no evidence of external fracture or cracking and shall meet the burst

pressure requirements of a).
d) Heat
...

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