SIST EN ISO 3949:2020
(Main)Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification (ISO 3949:2020, Corrected version 2020-12)
Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification (ISO 3949:2020, Corrected version 2020-12)
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, korrigierte Fassung 2020-12)
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, Version corrigée 2020-12)
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, popravljena različica 2020-12)
General Information
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Buy Standard
Standards Content (Sample)
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, popravljena različica 2020-12)
Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications -
Specification (ISO 3949:2020, Corrected version 2020-12)
Kunststoffschläuche und -schlauchleitungen - Textilverstärkte Typen für hydraulische
Anwendungen - Spezifikation (ISO 3949:2020, korrigierte Fassung 2020-12)
Tuyaux et flexibles en plastique - Types hydrauliques avec armature textile -
Spécifications (ISO 3949:2020, Version corrigée 2020-12)
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.
---------------------- Page: 1 ----------------------
SIST EN ISO 3949:2020
---------------------- Page: 2 ----------------------
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, Corrected version 2020-12)
Tuyaux et flexibles en plastique - Types hydrauliques Kunststoffschläuche und schlauchleitungen -
avec armature textile - Spécifications (ISO 3949:2020, Textilverstärkte Typen für hydraulische Anwendungen
Version corrigée 2020-12) - Spezifikation (ISO 3949:2020, korrigierte Fassung
2020-12)
This European Standard was approved by CEN on 23 June 2020.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 23 December 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 NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
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.
---------------------- Page: 3 ----------------------
SIST EN ISO 3949:2020
EN ISO 3949:2020 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
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, Corrected version 2020-12 has been approved by CEN as EN ISO 3949:2020
without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 3949:2020
---------------------- Page: 6 ----------------------
SIST EN ISO 3949:2020
INTERNATIONAL ISO
STANDARD 3949
Sixth edition
2020-07
Corrected version
2020-12
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
---------------------- Page: 7 ----------------------
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
---------------------- Page: 8 ----------------------
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
---------------------- Page: 9 ----------------------
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 %.
This corrected version of ISO 3949:2020 incorporates the following correction:
— in Table 6, the header in the third column that repeated “R7 and R8” has been corrected to “R18”.
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
---------------------- Page: 10 ----------------------
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 flui
...
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.
---------------------- Page: 1 ----------------------
SIST EN ISO 3949:2020
---------------------- Page: 2 ----------------------
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.
---------------------- Page: 3 ----------------------
SIST EN ISO 3949:2020
EN ISO 3949:2020 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
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.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 3949:2020
---------------------- Page: 6 ----------------------
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
---------------------- Page: 7 ----------------------
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
---------------------- Page: 8 ----------------------
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
---------------------- Page: 9 ----------------------
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
---------------------- Page: 10 ----------------------
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
...
SLOVENSKI STANDARD
oSIST prEN ISO 3949:2020
01-marec-2020
Polimerne cevi in cevni priključki - S tekstilom ojačene vrste za hidravlično
uporabo - Specifikacija (ISO/DIS 3949:2020)
Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications -
Specification (ISO/DIS 3949:2020)
Kunststoffschläuche und -schlauchleitungen - Textilverstärkte Typen für hydraulische
Anwendungen - Spezifikation (ISO/DIS 3949:2020)
Tuyaux et flexibles en plastique - Types hydrauliques avec armature textile -
Spécifications (ISO/DIS 3949:2020)
Ta slovenski standard je istoveten z: prEN ISO 3949
ICS:
83.120 Ojačani polimeri Reinforced plastics
83.140.40 Gumene cevi Hoses
oSIST prEN ISO 3949:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 3949:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 3949:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 3949
ISO/TC 45/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-01-17 2020-04-10
Plastics hoses and hose assemblies — Textile-reinforced
types for hydraulic applications — Specification
Tuyaux et flexibles en plastique — Types hydrauliques avec armature textile — Spécifications
ICS: 83.140.40; 23.100.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 3949:2020(E)
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 SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 3949:2020
ISO/DIS 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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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oSIST prEN ISO 3949:2020
ISO/DIS 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 . 4
7.4 Resistance to impulse . 5
7.5 Leakage of hose assemblies . 5
7.6 Cold flexibility . 5
7.7 Ozone resistance. 5
7.8 Electrical conductivity . 5
7.9 Fluid resistance . 5
7.9.1 Test pieces . 5
7.9.2 Oil resistance . 6
7.9.3 Water-based fluid resistance . 6
7.10 Visual examination . 6
8 Frequency of testing . 6
9 Designation . 6
10 Marking . 6
10.1 Hoses . 6
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 . 7
Annex A (normative) Type and routine testing of hoses . 8
Annex B (informative) Production testing . 9
Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on
lengths of hose assemblies .10
Annex D (normative) Test method for electrical conductivity .11
Bibliography .12
© ISO 2020 – All rights reserved iii
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oSIST prEN ISO 3949:2020
ISO/DIS 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:
— percentage change in volume of the lining and cover at the test with water-based fluids changed
from 0 % and +25 % to −15 % and +35 %.
— percentage change in volume of the lining and cover at the test with water 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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oSIST prEN ISO 3949:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 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 does not include 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.
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 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 6743-4, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H
(Hydraulic systems)
ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing
ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 1: Bending tests at ambient temperature
ISO 10619-2:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 2: Bending tests at sub-ambient temperatures
ISO 17165-1, Hydraulic fluid
...
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