ISO 11170:2013

Hydraulic fluid power - Sequence of tests for verifying performance characteristics of filter elements

ISO 11170:2013 defines a sequence of tests for verifying filter elements. It can be used to check their hydraulic, mechanical and separation characteristics. ISO 11170:2013 is not intended to qualify a filter for a particular duty or replicate conditions of service. This can only be done by a specific test protocol developed for the purpose, including actual conditions of use (e.g. the operating fluid). The procedure in ISO 11170:2013 is applicable to individual fluids or types of fluids that have similar chemistry.

Transmissions hydrauliques — Ordre des essais pour la vérification des caractéristiques de performance des éléments filtrants

L'ISO 11170:2013 définit l'ordre des essais permettant de vérifier les éléments filtrants. Elle peut être utilisée pour contrôler leurs caractéristiques hydrauliques, mécaniques et séparatives. L'ISO 11170:2013 n'est pas destinée à qualifier un filtre pour une application particulière ou à simuler les conditions de service. Cela ne peut être réalisé que par un mode opératoire d'essai spécifique mis en place à cette fin et qui inclut des conditions réelles d'utilisation (par exemple le fluide de service). Le mode opératoire spécifié dans l'ISO 11170:2013 s'applique à des fluides individuels ou à des types de fluides ayant une composition chimique semblable.

Fluidna tehnika - Hidravlika - Zaporedje postopkov za preverjanje lastnosti filtrskih vložkov

General Information

• Status: Published
• Publication Date: 12-Feb-2013
• ICS: 23.100.60 - Filters, seals and contamination of fluids
• Technical Committee: ISO/TC 131/SC 6 - Contamination control
• Drafting Committee: ISO/TC 131/SC 6/WG 2 - Filter and separator evaluation
• Current Stage: 9093 - International Standard confirmed
• Start Date: 31-Jul-2024
• Completion Date: 13-Dec-2025
• Ref Project: SIST ISO 11170:2014 - Hydraulic fluid power - Sequence of tests for verifying performance characteristics of filter elements

Relations

• Revises: ISO 11170:2003 - Hydraulic fluid power - Filter elements - Sequence of tests for verifying performance characteristics
• Effective Date: 05-Sep-2009

Overview - ISO 11170:2013 (Hydraulic filter elements)

ISO 11170:2013 defines a standardized sequence of tests for verifying the performance characteristics of hydraulic filter elements used in hydraulic fluid power systems. The standard specifies how to check hydraulic, mechanical and separation properties of filter elements using established test methods. It is not intended to qualify a filter for a specific in-service duty or to replicate actual operating conditions - those require a bespoke test protocol that mirrors the intended fluid and service environment. ISO 11170:2013 is applicable to individual fluids or fluid types with similar chemistry.

Key topics and technical requirements

• Scope: Verification sequence covering fabrication integrity, material compatibility, filtration performance, mechanical ratings and flow endurance.
• Test sequence: A logical order of tests to minimize sample use and ensure complete verification. At least three filter elements must be tested and ranked by first bubble point (BP1 < BP2 < BP3).
• Core tests referenced: The procedure uses existing ISO test methods:
  • Fabrication integrity and first bubble point - ISO 2942
  • Material compatibility (hot soak) - ISO 2943
  • Multi-pass filtration efficiency & contaminant retention - ISO 16889
  • Collapse/burst pressure rating - ISO 2941
  • Pressure drop vs. flow characteristics - ISO 3968
  • Flow fatigue (particulate or high-viscosity) - ISO 3724 or ISO 23181
  • End load test - ISO 3723 (if relevant)
• Preparation and handling: Elements are rinsed/dried per the standard; solvent rinse contamination shall be cleaner than the ISO 4406 code –/11/9. Bubble point measurements are recorded and used to assign sample order.
• Acceptance and reporting: Tests that cause element damage or failure disqualify the element from further testing. Final test reports must include the specific test reports and all measured values, and may carry the identification statement provided in the standard.

Practical applications and users

ISO 11170:2013 is used by:

• Filter manufacturers to verify product performance during development and quality control.
• Independent test laboratories conducting standardized verification programs.
• Engineers and specifiers writing procurement or acceptance criteria for hydraulic filtration.
• Maintenance and reliability teams evaluating replacement elements or troubleshooting contamination issues. Practical benefits include consistent verification of filtration efficiency, mechanical robustness, material compatibility and flow endurance - helping improve hydraulic system reliability and component life.

Related standards

ISO 11170:2013 integrates and references test methods from:

• ISO 2941, ISO 2942, ISO 2943, ISO 3723, ISO 3724, ISO 3968, ISO 4406, ISO 5598, ISO 16889, ISO 23181

Keywords: ISO 11170:2013, hydraulic filter elements, filter testing, filtration efficiency, bubble point, material compatibility, flow fatigue, collapse pressure, hydraulic fluid power.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11170
Third edition
2013-02-15
Hydraulic fluid power — Sequence
of tests for verifying performance
characteristics of filter elements
Transmissions hydrauliques — Ordre des essais pour la vérification
des caractéristiques de performance des éléments filtrants
Reference number
©
ISO 2013
© ISO 2013
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test elements . 1
5 Test procedure . 2
5.1 General . 2
5.2 Fabrication integrity test . 4
5.3 Material compatibility test . 4
5.4 Other tests . 5
6 Test report . 5
7 Identification statement (reference to this International Standard) . 5
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 11170 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 6,
Contamination control.
This third edition cancels and replaces the second edition (ISO 11170:2003), which has been
technically revised.
iv © ISO 2013 – All rights reserved

Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within a closed circuit. The liquid is both a lubricant and power-transmitting medium. The presence
of solid contaminant particles in the liquid interferes with the ability of the hydraulic fluid to lubricate
and causes wear to the components. The extent of contamination in the fluid has a direct bearing on
the performance and reliability of the system, and needs to be controlled to levels that are considered
appropriate for the system concerned. Filters are used to control the contamination level of the fluid by
removing solid contaminant particles.
Different principles are used for this purpose; one of these uses a filter element enclosed in a filter
housing. The filter element is the porous device that performs the actual process of filtration. The
complete assembly is designated as a filter.
The performance of filter elements is measured by testing, and a series of International Standards has
been developed to determine performance under specified conditions (see Clause 2). To give a greater
level of assurance for a filter element’s fitness for duty, most if not all of these tests should be used in a
verification programme.
This International Standard provides an approval or verification protocol that features all of the current
International Standards for filter testing.
INTERNATIONAL STANDARD ISO 11170:2013(E)
Hydraulic fluid power — Sequence of tests for verifying
performance characteristics of filter elements
1 Scope
This International Standard defines a sequence of tests for verifying filter elements. It can be used to
check their hydraulic, mechanical and separation characteristics.
This International Standard is not intended to qualify a filter for a particular duty or replicate conditions
of service. This can only be done by a specific test protocol developed for the purpose, including actual
conditions of use (e.g. the operating fluid).
The procedure in this International Standard is applicable to individual fluids or types of fluids that
have similar chemistry.
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 2941, Hydraulic fluid power — Filter elements — Verification of collapse/burst pressure rating
ISO 2942, Hydraulic fluid power — Filter elements — Verification of fabrication integrity and determination
of the first bubble point
ISO 2943, Hydraulic fluid power — Filter elements — Verification of material compatibility with fluids
ISO 3723, Hydraulic fluid power — Filter elements — Method for end load test
ISO 3724, Hydraulic fluid power — Filter elements — Determination of resistance to flow fatigue using
particulate contaminant
ISO 3968, Hydraulic fluid power — Filters
...

SLOVENSKI STANDARD
01-marec-2014
1DGRPHãþD
SIST ISO 11170:2005
Fluidna tehnika - Hidravlika - Zaporedje postopkov za preverjanje lastnosti filtrskih
vložkov
Hydraulic fluid power - Sequence of tests for verifying performance characteristics of
filter elements
Transmissions hydrauliques - Ordre des essais pour la vérification des caractéristiques
de performance des éléments filtrants
Ta slovenski standard je istoveten z: ISO 11170:2013
ICS:
23.100.60 )LOWULWHVQLODLQ Filters, seals and
RQHVQDåHYDQMHWHNRþLQ contamination of fluids
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 11170
Third edition
2013-02-15
Hydraulic fluid power — Sequence
of tests for verifying performance
characteristics of filter elements
Transmissions hydrauliques — Ordre des essais pour la vérification
des caractéristiques de performance des éléments filtrants
Reference number
©
ISO 2013
© ISO 2013
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test elements . 1
5 Test procedure . 2
5.1 General . 2
5.2 Fabrication integrity test . 4
5.3 Material compatibility test . 4
5.4 Other tests . 5
6 Test report . 5
7 Identification statement (reference to this International Standard) . 5
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 11170 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 6,
Contamination control.
This third edition cancels and replaces the second edition (ISO 11170:2003), which has been
technically revised.
iv © ISO 2013 – All rights reserved

Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within a closed circuit. The liquid is both a lubricant and power-transmitting medium. The presence
of solid contaminant particles in the liquid interferes with the ability of the hydraulic fluid to lubricate
and causes wear to the components. The extent of contamination in the fluid has a direct bearing on
the performance and reliability of the system, and needs to be controlled to levels that are considered
appropriate for the system concerned. Filters are used to control the contamination level of the fluid by
removing solid contaminant particles.
Different principles are used for this purpose; one of these uses a filter element enclosed in a filter
housing. The filter element is the porous device that performs the actual process of filtration. The
complete assembly is designated as a filter.
The performance of filter elements is measured by testing, and a series of International Standards has
been developed to determine performance under specified conditions (see Clause 2). To give a greater
level of assurance for a filter element’s fitness for duty, most if not all of these tests should be used in a
verification programme.
This International Standard provides an approval or verification protocol that features all of the current
International Standards for filter testing.
INTERNATIONAL STANDARD ISO 11170:2013(E)
Hydraulic fluid power — Sequence of tests for verifying
performance characteristics of filter elements
1 Scope
This International Standard defines a sequence of tests for verifying filter elements. It can be used to
check their hydraulic, mechanical and separation characteristics.
This International Standard is not intended to qualify a filter for a particular duty or replicate conditions
of service. This can only be done by a specific test protocol developed for the purpose, including actual
conditions of use (e.g. the operating fluid).
The procedure in this International Standard is applicable to individual fluids or types of fluids that
have similar chemistry.
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 2941, Hydraulic fluid power
...

NORME ISO
INTERNATIONALE 11170
Troisième édition
2013-02-15
Transmissions hydrauliques — Ordre
des essais pour la vérification des
caractéristiques de performance des
éléments filtrants
Hydraulic fluid power — Sequence of tests for verifying performance
characteristics of filter elements
Numéro de référence
©
ISO 2013
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2013
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni utilisée
sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie, l’affichage sur
l’internet ou sur un Intranet, sans autorisation écrite préalable. Les demandes d’autorisation peuvent être adressées à l’ISO à
l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse
ii © ISO 2013 – Tous droits réservés

Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Éléments d’essai . 2
5 Mode opératoire. 2
5.1 Généralités . 2
5.2 Essai de conformité de fabrication . 4
5.3 Essai de compatibilité des matériaux . 5
5.4 Autres essais . 5
6 Rapport d’essai . 6
7 Phrase d’identification (Référence à la présente Norme internationale) .6
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes
nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est
en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.
L’ISO collabore étroitement avec la Commission électrotechnique internationale (CEI) en ce qui concerne
la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives
ISO/CEI, Partie 2.
La tâche principale des comités techniques est d’élaborer les Normes internationales. Les projets de
Normes internationales adoptés par les comités techniques sont soumis aux comités membres pour vote.
Leur publication comme Normes internationales requiert l’approbation de 75 % au moins des comités
membres votants.
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de
droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable de
ne pas avoir identifié de tels droits de propriété et averti de leur existence.
L’ISO 11170 a été élaborée par le comité technique ISO/TC 131, Transmissions hydrauliques et pneumatiques,
sous-comité SC 6, Contrôle de la contamination.
Cette troisième édition annule et remplace la deuxième édition (ISO 11170:2003), qui a fait l’objet d’une
révision technique.
iv © ISO 2013 – Tous droits réservés

Introduction
Dans les systèmes de transmissions hydrauliques, l’énergie est transmise et commandée par
l’intermédiaire d’un liquide sous pression circulant en circuit fermé. Ce liquide sert à la fois de lubrifiant et
de moyen de transmission de la puissance. La présence d’une pollution particulaire solide dans le liquide
entrave la capacité du fluide hydraulique à lubrifier le système et provoque l’usure des composants.
Une pollution trop importante influe directement sur les performances et la fiabilité du système, c’est
pourquoi elle doit être maintenue à un niveau jugé approprié au système concerné. Le niveau de pollution
du fluide est contrôlé par des filtres qui retiennent les particules solides polluantes.
Différents principes sont utilisés pour atteindre cet objectif. L’un d’eux consiste à utiliser un corps de
filtre équipé d’un élément filtrant. L’élément filtrant est le dispositif poreux qui réalise le processus réel
de filtration. L’ensemble complet est désigné sous le terme de filtre.
Les performances des éléments filtrants sont mesurées par des essais. Une série de Normes internationales
a été élaborée dans le but de déterminer les performances du système dans des conditions particulières
(voir l’Article 2). Pour être certain de l’aptitude à l’emploi d’un élément filtrant, il convient d’intégrer la
plupart, voire la totalité de ces essais au sein d’un programme de vérification.
La présente Norme internationale constitue un protocole d’homologation ou de vérification qui fait état
de toutes les Normes internationales existantes en matière d’essais des filtres.
NORME INTERNATIONALE ISO 11170:2013(F)
Transmissions hydrauliques — Ordre des essais pour
la vérification des caractéristiques de performance des
éléments filtrants
1 Domaine d’application
La présente Norme internationale définit l’ordre des essais permettant de vérifier les éléments filtrants.
Elle peut être utilisée pour contrôler leurs caractéristiques hydrauliques, mécaniques et séparatives.
La présente Norme internationale n’est pas destinée à qualifier un filtre pour une application particulière
ou à simuler les conditions de service. Cela ne peut être réalisé que par un mode opératoire d’essai spécifique
mis en place à cette fin et qui inclut des conditions réelles d’utilisation (par exemple le fluide de service).
Le mode opératoire spécifié dans la présente Norme internationale s’applique à des fluides individuels
ou à des types de fluides ayant une composition chimique semblable.
2 Références normatives
Les documents de référence suivants sont indispensables pour l’application du présent document. Pour
les références datées, seule l’édition citée s’applique. Pour les références non datées, la dernière édition
du document de référence s’applique (y compris les éventuels amendements).
ISO 2941, Transmissions hydrauliques — Éléments filtrants — Vérification de la pression
d’écrasement/éclatement
ISO 2942, Transmissions hydrauliques — Éléments filtrants — Vérification de la conformité de fabrication
et détermination du point de première bulle
ISO 2943, Transmissions hydrauliques — Éléments filtrants — Vérification de la compatibilité des matériaux
avec les fluides
ISO 3723, Transmissions hydrauliques — Éléments filtrants — Méthode de détermination de la résistance à
la déformation axiale
ISO 3724, Transmissions hydrauliques — Éléments filtrants — Détermination de la résistance à la fatigue
due au débit en utilisant un contaminant particulaire
ISO 3968, Transmissions hydrauliques — Filtres — Évaluation de la perte de charge en fonction du débit
ISO 4406, Transmissions hydrauliques — Fluides — Méthode de codification du niveau de pollution
particulaire solide
ISO 5598, Transmissions hydrauliques et pneumatiques — Vocabulaire
ISO 16889, Transmissions hydrauliques — Filtres — Évaluation des performances par la méthode de
filtration en circuit ferm
...