Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification (ISO 3949:2020)

This document specifies requirements for three types of textile-reinforced thermoplastics hoses and
hose assemblies of nominal size from 3,2 to 25. Each type is divided into two classes dependent on
electrical conductivity requirements.
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 +93 °C;
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging
from 0 °C to +60 °C
— water at temperatures ranging from 0 °C to +60 °C.
This document does not include any requirements for end fittings. It is limited to the performance of
hoses and hose assemblies.
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

Kunststoffschläuche und -schlauchleitungen - Textilverstärkte Typen für hydraulische Anwendungen - Spezifikation (ISO 3949:2020)

Dieses Dokument legt Anforderungen für drei Typen von textilverstärkten thermoplastischen Schläuchen und Schlauchleitungen mit einer Nennweite von 3,2 bis 25 fest. Abhängig von den Anforderungen an die elektrische Leitfähigkeit ist jeder Typ in zwei Klassen unterteilt.
Sie sind geeignet für den Gebrauch mit
- den in ISO 6743 4 festgelegten ölbasierten hydraulischen Flüssigkeiten HH, HL, HM, HR und HV in einem Temperaturbereich von −40 °C bis +93 °C,
- den in ISO 6743 4 festgelegten wasserbasierten Flüssigkeiten HFC, HFAE, HFAS und HFB in einem Temperaturbereich von 0 °C bis +60 °C und
- Wasser bei Temperaturen im Bereich von 0°C bis +60 °C.
Dieses Dokument enthält keine Anforderungen an Endarmaturen. Es beschränkt sich auf die Leistung von Schläuchen und Schlauchleitungen.
ANMERKUNG Es liegt in der Verantwortung des Benutzers, in Absprache mit dem Schlauchhersteller die Verträglichkeit des Schlauches mit der verwendeten Flüssigkeit sicherzustellen.

Tuyaux et flexibles en plastique - Types hydrauliques avec armature textile - Spécifications (ISO 3949:2020)

Le présent document spécifie les exigences pour trois types de tuyaux et flexibles thermoplastiques avec armature textile de dimension nominale de 3,2 à 25. Chaque type est divisé en deux classes dépendant des exigences relatives à la conductibilité électrique.
Ils sont destinés à être utilisés avec:
— des fluides hydrauliques à base de pétrole HH, HL, HM, HR et HV tels que définis dans l'ISO 6743‑4 pour une plage de températures de −40 °C à +93 °C;
— des fluides hydrauliques à base d'eau HFC, HFAE, HFAS et HFB tels que définis dans l'ISO 6743‑4 pour une plage de températures de 0 °C à +60 °C;
— de l'eau pour une plage de températures de 0 °C à +60 °C.
Le présent document ne contient aucune exigence relative aux extrémités de raccordement. Il se limite aux performances des tuyaux et des flexibles.
NOTE Il est de la responsabilité de l'utilisateur, en collaboration avec le fabricant du tuyau, d'établir la compatibilité du tuyau avec le fluide à utiliser.

Polimerne cevi in cevni priključki - S tekstilom ojačene vrste za hidravlično uporabo - Specifikacija (ISO 3949:2020)

General Information

Status
Published
Public Enquiry End Date
31-Mar-2020
Publication Date
03-Sep-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Aug-2020
Due Date
29-Oct-2020
Completion Date
04-Sep-2020

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SLOVENSKI STANDARD
SIST EN ISO 3949:2020
01-november-2020
Nadomešča:
SIST EN ISO 3949:2018
Polimerne cevi in cevni priključki - S tekstilom ojačene vrste za hidravlično
uporabo - Specifikacija (ISO 3949:2020)

Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications -

Specification (ISO 3949:2020)

Kunststoffschläuche und -schlauchleitungen - Textilverstärkte Typen für hydraulische

Anwendungen - Spezifikation (ISO 3949:2020)
Tuyaux et flexibles en plastique - Types hydrauliques avec armature textile -
Spécifications (ISO 3949:2020)
Ta slovenski standard je istoveten z: EN ISO 3949:2020
ICS:
83.120 Ojačani polimeri Reinforced plastics
83.140.40 Gumene cevi Hoses
SIST EN ISO 3949:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3949:2020
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SIST EN ISO 3949:2020
EN ISO 3949
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2020
EUROPÄISCHE NORM
ICS 23.100.40; 83.140.40 Supersedes EN ISO 3949:2018
English Version
Plastics hoses and hose assemblies - Textile-reinforced
types for hydraulic applications - Specification (ISO
3949:2020)

Tuyaux et flexibles en plastique - Types hydrauliques Kunststoffschläuche und schlauchleitungen -

avec armature textile - Spécifications (ISO 3949:2020) Textilverstärkte Typen für hydraulische Anwendungen

- Spezifikation (ISO 3949:2020)
This European Standard was approved by CEN on 23 June 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3949:2020 E

worldwide for CEN national Members.
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SIST EN ISO 3949:2020
EN ISO 3949:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 3949:2020
EN ISO 3949:2020 (E)
European foreword

This document (EN ISO 3949:2020) has been prepared by Technical Committee ISO/TC 45 "Rubber and

rubber products" in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses

and hose assemblies” the secretariat of which is held by BSI.

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 February 2021, and conflicting national standards

shall be withdrawn at the latest by February 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 3949:2018.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 3949:2020 has been approved by CEN as EN ISO 3949:2020 without any modification.

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SIST EN ISO 3949:2020
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SIST EN ISO 3949:2020
INTERNATIONAL ISO
STANDARD 3949
Sixth edition
2020-07
Plastics hoses and hose assemblies —
Textile-reinforced types for hydraulic
applications — Specification
Tuyaux et flexibles en plastique — Types hydrauliques avec armature
textile — Spécifications
Reference number
ISO 3949:2020(E)
ISO 2020
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SIST EN ISO 3949:2020
ISO 3949:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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 2020 – All rights reserved
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SIST EN ISO 3949:2020
ISO 3949:2020(E)
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 and tolerances ....................................................................................................................................................................... 2

6.1 Diameters .................................................................................................................................................................................................... 2

6.2 Concentricity............................................................................................................................................................................................. 3

7 Physical properties ............................................................................................................................................................................................ 3

7.1 Hydrostatic requirements ............................................................................................................................................................. 3

7.2 Change in length .................................................................................................................................................................................... 4

7.3 Minimum bend radius ...................................................................................................................................................................... 5

7.4 Resistance to impulse ........................................................................................................................................................................ 5

7.5 Leakage of hose assemblies ......................................................................................................................................................... 5

7.6 Cold flexibility .......................................................................................................................................................................................... 6

7.7 Ozone resistance.................................................................................................................................................................................... 6

7.8 Electrical conductivity ...................................................................................................................................................................... 6

7.9 Fluid resistance ...................................................................................................................................................................................... 6

7.9.1 Test pieces ............................................................................................................................................................................. 6

7.9.2 Oil resistance ....................................................................................................................................................................... 6

7.9.3 Water-based fluid resistance ................................................................................................................................. 6

7.9.4 Water resistance .................. .................................................... ......................................................................................... 6

7.10 Visual examination .............................................................................................................................................................................. 6

8 Frequency of testing .......................................................................................................................................................................................... 6

9 Designation ................................................................................................................................................................................................................ 7

10 Marking .......................................................................................................................................................................................................................... 7

10.1 Hoses ............................................................................................................................................................................................................... 7

10.2 Hose assemblies ..................................................................................................................................................................................... 7

11 Recommendations for packing and storage ............................................................................................................................ 7

12 Recommendations for length of supplied hoses and tolerances on lengths of hose

assemblies ................................................................................................................................................................................................................... 7

13 Test certificate ......................................................................................................................................................................................................... 8

Annex A (normative) Type and routine testing of hoses ................................................................................................................. 9

Annex B (informative) Production testing ...................................................................................................................................................10

Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on

lengths of hose assemblies ......................................................................................................................................................................11

Annex D (normative) Test method for electrical conductivity ...............................................................................................12

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

© ISO 2020 – All rights reserved iii
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SIST EN ISO 3949:2020
ISO 3949:2020(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 sixth edition cancels and replaces the fifth edition (ISO 3949:2018), which has been technically

revised. The changes compared to the previous edition are as follows:

— the percentage change in the volume of the lining and cover in the test with water-based fluids has

been changed from 0 % and +25 % to −15 % and +35 %;

— the percentage change in the volume of the lining and cover in the test with water has been changed

from −10 % and +25 % to −15 % and +35 %.

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 2020 – All rights reserved
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SIST EN ISO 3949:2020
INTERNATIONAL STANDARD ISO 3949:2020(E)
Plastics hoses and hose assemblies — Textile-reinforced
types for hydraulic applications — Specification
1 Scope

This document specifies requirements for three types of textile-reinforced thermoplastics hoses and

hose assemblies of nominal size from 3,2 to 25. Each type is divided into two classes dependent on

electrical conductivity requirements.
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 +93 °C;

— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging

from 0 °C to +60 °C
— water at temperatures ranging from 0 °C to +60 °C.
This document d
...

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