SIST EN ISO 4263-2:2003

Petroleum and related products - Determination of the ageing behaviour of inhibited oils and fluids - TOST test - Part 2: Procedure for category HFC hydraulic fluids (ISO 4263-2:2003)

ISO 4263-2:2003 specifies a method for the determination of the ageing behaviour of hydraulic fluids of category HFC as defined in ISO 6743-4 and specified in ISO 12922. The ageing is accelerated by the presence of oxygen, water and metal catalysts at elevated temperature, and the degradation of the fluid is followed by changes in pH value and insolubles content. Other parts of ISO 4263 specify similar procedures for the determination of the ageing behaviour of mineral oils and specified categories of fire-resistant fluids used in hydraulic and other applications.

Mineralölerzeugnisse und verwandte Produkte - Bestimmung des Alterungsverhaltens von inhibierten Ölen und Flüssigkeiten - TOST Test - Teil 2: Verfahren für Druckflüssigkeiten der Klasse HFC (ISO 4263-2:2003)

Dieser Teil von ISO 4263 legt ein Verfahren fest zur Bestimmung des Alterungsverhaltens von Druckflüssigkeiten der Klasse HFC, wie sie in ISO 6743-4 (siehe [2] der Literaturhinweise) definiert und in ISO 12922 (siehe [3] der Literaturhinweise) festgelegt sind. Die Alterung wird beschleunigt durch die Anwesenheit von Sauerstoff, Wasser und Metall-Katalysatoren bei erhöhten Temperaturen, und die Zerfallserscheinungen in der Flüssigkeit werden über die Änderung des pH-Wertes und durch den Gehalt an Unlöslichem verfolgt. Andere Teile von ISO 4263 legen ähnliche Verfahren für die Bestimmung des Alterungsverhaltens von Mineralölen und spezifizierten Klassen von schwerentflammbaren Flüssigkeiten fest, die in hydraulischen und anderen Anwendungen eingesetzt werden.
ANMERKUNG   Für die Anwendung dieses Teiles von ISO 4263 wird die Bezeichnung "% (m/m)" für Massenanteil in Prozent eines Materials verwendet.

Pétrole et produits et produits connexes - Détermination du comportement au vieillissement des fluides et huiles inhibées - Essai TOST - Partie 2: Méthode pour les fluides hydrauliques de catégorie HFC (ISO 4263-2:2003)

L'ISO 4263-2:2003 spécifie une méthode permettant d'évaluer le comportement au vieillissement des fluides hydrauliques de catégorie HFC, tels qu'ils sont définis dans l'ISO 6743-4 et spécifiés dans l'ISO 12922. Dans cette méthode, le vieillissement est accéléré par la présence d'oxygène, d'eau et de catalyseurs métalliques à température élevée. La dégradation du fluide est suivie par l'évolution de la valeur du pH et de la teneur en produits insolubles. D'autres parties de l'ISO 4263 décrivent des méthodes similaires permettant d'évaluer les caractéristiques de vieillissement des huiles minérales et de catégories spécifiques de fluides difficilement inflammables utilisés dans des applications hydrauliques et autres.

Nafta in sorodni proizvodi - Določevanje staranja inhibiranih olj in tekočin - Preskus TOST - 2. del: Postopek za skupino HFC hidravličnih tekočin (ISO 4263-2:2003)

General Information

• Status: Published
• Publication Date: 31-May-2003
• ICS: 75.120 - Hydraulic fluids
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2003
• Due Date: 01-Jun-2003
• Completion Date: 01-Jun-2003
• Mandate: M/238 - Mandate to CEN for standardization in the field of fire-resistant hydraulic fluids used for power transmission and control (hydrostatic and hydrokinetic)
• Ref Project: EN ISO 4263-2:2003 - Petroleum and related products - Determination of the ageing behaviour of inhibited oils and fluids - TOST test - Part 2: Procedure for category HFC hydraulic fluids (ISO 4263-2:2003)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4263-2:2003
01-junij-2003
1DIWDLQVRURGQLSURL]YRGL'RORþHYDQMHVWDUDQMDLQKLELUDQLKROMLQWHNRþLQ
3UHVNXV7267GHO3RVWRSHN]DVNXSLQR+)&KLGUDYOLþQLKWHNRþLQ,62

Petroleum and related products - Determination of the ageing behaviour of inhibited oils
and fluids - TOST test - Part 2: Procedure for category HFC hydraulic fluids (ISO 4263-
2:2003)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung des Alterungsverhaltens
von inhibierten Ölen und Flüssigkeiten - TOST Test - Teil 2: Verfahren für
Druckflüssigkeiten der Klasse HFC (ISO 4263-2:2003)
Pétrole et produits et produits connexes - Détermination du comportement au
vieillissement des fluides et huiles inhibées - Essai TOST - Partie 2: Méthode pour les
fluides hydrauliques de catégorie HFC (ISO 4263-2:2003)
Ta slovenski standard je istoveten z: EN ISO 4263-2:2003
ICS:
75.120 +LGUDYOLþQLIOXLGL Hydraulic fluids
SIST EN ISO 4263-2:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4263-2:2003

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SIST EN ISO 4263-2:2003
EUROPEAN STANDARD
EN ISO 4263-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2003
ICS 75.120
English version
Petroleum and related products - Determination of the ageing
behaviour of inhibited oils and fluids - TOST test - Part 2:
Procedure for category HFC hydraulic fluids (ISO 4263-2:2003)
Pétrole et produits et produits connexes - Détermination du Mineralölerzeugnisse und verwandte Produkte -
comportement au vieillissement des fluides et huiles Bestimmung des Alterungsverhaltens von inhibierten Ölen
inhibées - Essai TOST - Partie 2: Méthode pour les fluides und Flüssigkeiten - TOST Test - Teil 2: Verfahren für
hydrauliques de catégorie HFC (ISO 4263-2:2003) Druckflüssigkeiten der Klasse HFC (ISO 4263-2:2003)
This European Standard was approved by CEN on 25 March 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4263-2:2003 E
worldwide for CEN national Members.

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SIST EN ISO 4263-2:2003
EN ISO 4263-2:2003 (E)
CORRECTED 2003-06-25
Foreword
This document (EN ISO 4263-2:2003) has been prepared by Technical Committee ISO/TC 28
"Petroleum products and lubricants" in collaboration with Technical Committee CEN/TC 19
"Petroleum products, lubricants and related products", the secretariat of which is held by NEN.
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 October 2003, and conflicting national
standards shall be withdrawn at the latest by October 2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 4263-2:2003 has been approved by CEN as EN ISO 4263-2:2003 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
2

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SIST EN ISO 4263-2:2003
EN ISO 4263-2:2003 (E)
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 3170 1988 Petroleum liquids - Manual sampling EN ISO 3170 1998
ISO 3696 1987 Water for analytical laboratory use - EN ISO 3696 1995
Specification and test methods
3

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SIST EN ISO 4263-2:2003

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SIST EN ISO 4263-2:2003


INTERNATIONAL ISO
STANDARD 4263-2
First edition
2003-04-15


Petroleum and related products —
Determination of the ageing behaviour of
inhibited oils and fluids — TOST test
Part 2:
Procedure for category HFC hydraulic
fluids
Pétrole et produits connexes — Détermination du comportement au
vieillissement des fluides et huiles inhibées — Essai TOST
Partie 2: Méthode pour les fluides hydrauliques de catégorie HFC




Reference number
ISO 4263-2:2003(E)
©
ISO 2003

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SIST EN ISO 4263-2:2003
ISO 4263-2:2003(E)
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©  ISO 2003
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ii © ISO 2003 — All rights reserved

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SIST EN ISO 4263-2:2003
ISO 4263-2:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Principle . 1
4 Reagents and materials. 2
5 Apparatus. 3
6 Sampling . 6
7 Preparation of materials and apparatus . 7
8 Procedure. 8
9 Calculation. 9
10 Expression of results. 9
11 Test report. 9
Annex A (normative) Liquid-in-glass thermometer specifications . 10
Annex B (normative) Procedure for packaging and storage of catalyst coils . 11
Annex C (normative) Method for the determination of the insolubles content of category HFC
hydraulic fluids. 12
Annex D (normative) Appearance rating of catalyst-coil wires. 13
Bibliography . 14

© ISO 2003 — All rights reserved iii

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SIST EN ISO 4263-2:2003
ISO 4263-2:2003(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.
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 4263-2 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants.
ISO 4263 consists of the following parts, under the general title Petroleum and related products —
Determination of the ageing behaviour of inhibited oils and fluids — TOST test:
 Part 1: Procedure for mineral oils
 Part 2: Procedure for category HFC hydraulic fluids
 Part 3: Anhydrous procedure for synthetic hydraulic fluids
 Part 4: Procedure for industrial gear oils

iv © ISO 2003 — All rights reserved

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SIST EN ISO 4263-2:2003
INTERNATIONAL STANDARD ISO 4263-2:2003(E)

Petroleum and related products — Determination of the ageing
behaviour of inhibited oils and fluids — TOST test —
Part 2:
Procedure for category HFC hydraulic fluids
WARNING — The use of this part of ISO 4263 may involve hazardous materials, operations and
equipment. This part of ISO 4263 does not purport to address all of the safety problems associated
with its use. It is the responsibility of the user of this part of ISO 4263 to establish appropriate safety
and health practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This part of ISO 4263 specifies a method for the determination of the ageing behaviour of hydraulic fluids of
category HFC as defined in ISO 6743-4 (see [2] in the Bibliography) and specified in ISO 12922 (see [3] in the
Bibliography]. The ageing is accelerated by the presence of oxygen, water and metal catalysts at elevated
temperature, and the degradation of the fluid is followed by changes in pH value and insolubles content. Other
parts of ISO 4263 specify similar procedures for the determination of the ageing behaviour of mineral oils and
specified categories of fire-resistant fluids used in hydraulic and other applications.
NOTE For the purposes of this part of ISO 4263, the term “% (m/m)” is used to represent the mass fraction of a
material.
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.
1)
ISO 3170:— , Petroleum liquids — Manual sampling
ISO 3696:1987, Water for analytical laboratory use — Specification and test methods
2)
ISO 20843:— , Petroleum and related products — Determination of pH of fire-resistant fluids within
categories HFAE, HFAS and HFC
3 Principle
A test portion is reacted, in the absence of light, at 95 °C with oxygen and a steel and copper catalyst coil.
Small aliquots of the fluid are withdrawn at regular intervals and the pH value and insolubles content are
measured. The test is continued until a pH of 4,0 is reached, an insolubles content of 4,0 % (m/m) is exceeded,
or a 200 h duration has elapsed.

1)
To be published. (Revision of ISO 3170:1988)
2)
To be published.
© ISO 2003 — All rights reserved 1

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SIST EN ISO 4263-2:2003
ISO 4263-2:2003(E)
4 Reagents and materials
4.1 Water, unless otherwise specified, in accordance with the requirements of grade 2 as defined in
ISO 3696. Potable water means tap water, unless normal piped supplies are contaminated with particulate or
highly soluble mineral content.
4.2 Heptane (C H ), of minimum purity 99,75 %.
7 16
4.3 Acetone (CH COCH ), of general purpose reagent grade (GPR).
3 3
4.4 Propan-2-ol (CH CHOHCH ), of general purpose reagent grade (GPR).
3 3
4.5 Oxygen, of minimum purity 99,5 %. Supplied through a pressure-regulation system adequate to
maintain the specified flow rate throughout the test duration.
Supply from an oxygen cylinder should be via a two-stage regulation system and a needle valve to improve
the consistency of gas-flow regulation.
WARNING — Use oxygen only with equipment validated for oxygen service. Do not allow oil or grease
to come into contact with oxygen and clean and inspect all regulators, gauges and control equipment.
Check the oxygen-supply system regularly for leaks. If a leak is suspected, turn off immediately and
seek qualified assistance.
4.6 Cleaning solutions
4.6.1 Strong oxidizing acid solution
A strong oxidizing acid cleaning solution, such as ammonium persulfate in concentrated sulfuric acid (8 g/l), or
other proprietary strongly oxidizing solutions used in accordance with the manufacturer’s instructions. A 10 %
solution of three parts of hydrochloric acid (1 mol/l) and one part of orthophosphoric acid (concentrated GPR
grade) removes iron oxide deposits.
4.6.2 Surfactant cleaning fluid
A proprietary strong surfactant cleaning fluid is a preferred alternative to the strong oxidizing cleaning solution
whenever the condition of the glassware permits this.
4.6.3 Laboratory detergent
The detergent shall be water soluble.
4.7 Catalyst wires
4.7.1 Low-metalloid steel wire, of diameter 1,60 mm ± 0,05 mm, made of carbon steel, soft bright
annealed and free from rust.
4.7.2 Copper wire, of diameter 1,63 mm ± 0,05 mm, made of either electrolytic copper wire of 99,9 %
minimum purity or soft copper wire of an equivalent grade.
4.8 Abrasive cloth, made of silicon carbide of 150 µm (100-grit) with a cloth backing, or an equivalent
grade of abrasive cloth.
4.9 Absorbent cotton
2 © ISO 2003 — All rights reserved

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SIST EN ISO 4263-2:2003
ISO 4263-2:2003(E)
5 Apparatus
5.1 Oxidation cell, consisting of a large test tube of borosilicate glass with a graduation mark at
300 ml ± 1 ml, which applies to the test tube alone at 20 °C. A mushroom condenser and oxygen-delivery tube,
also of borosilicate glass, fit into the test tube. The design and dimensions shall be as illustrated in Figure 1.
5.2 Heating bath, consisting of a thermostatically controlled bath capable of maintaining the hydraulic fluid
test portion in the oxidation cell at 95 °C ± 0,2 °C. It shall be large enough to hold the required number of
oxidation cells (5.1) immersed in the heat-transfer medium to a depth of 355 mm ± 10 mm. It shall be
constructed to ensure that light is excluded from the test portions during the test. If a fluid bath is used, it shall
be fitted with a suitable stirring system to provide a uniform temperature throughout the bath. If the fluid bath is
fitted with a top, the total length of the oxidation cell within the bath shall be 390 mm ± 10 mm. If a metal-block
bath is used, the heaters shall be distributed so as to produce a uniform temperature throughout the bath, and
the holes in the block shall have a minimum diameter of 50 mm and a depth, including any insulating cover, of
390 mm ± 10 mm.
5.3 Flowmeter, of minimum capacity 3 l/h and an accuracy of ± 0,1 l/h.
5.4 Temperature-measurement devices
5.4.1 Heating bath. The temperature in liquid heating baths shall be measured by either a liquid-in-glass
thermometer meeting the requirements of the specification given in Annex A, or an equivalent temperature-
measurement system readable to ± 0,1 °C and calibrated to better than ± 0,1 °C. For metal-block heating
baths, a temperature-measurement system, with possibly more than one device of the same readability and
accuracy, is required.
5.4.2 Oxidation cell. The temperature in the oxidation cell shall be measured by either a liquid-in-glass
thermometer meeting the requirements of the specification given in Annex A, or an equivalent temperature-
measurement system readable to ± 0,1 °C and calibrated to better than ± 0,1 °C.
5.4.3 Thermometer bracket. If a liquid-in-glass thermometer is used in the oxidation cell, it shall be
suspended by means of a bracket as illustrated in Figure 2. The thermometer is held in the bracket by either
two
...