ISO/PRF TS 11007-2

Petroleum products and lubricants -- Determination of rust-prevention characteristics of lubricating greases

Produits pétroliers et lubrifiants -- Détermination des caractéristiques antirouille des graisses lubrifiantes

General Information

• Status: Published
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: ISO/TC 28 - Petroleum and related products, fuels and lubricants from natural or synthetic sources
• Drafting Committee: ISO/TC 28/WG 19 - Development of test methods and field performance equipment for greases

RELATIONS

• Revised: ISO 11007:1997 - Petroleum products and lubricants -- Determination of rust-prevention characteristics of lubricating greases
• Effective Date: 23-Apr-2020

Standards Content (sample)

TECHNICAL ISO/TS
SPECIFICATION 11007-2
First edition
Petroleum products and lubricants —
Determination of rust-prevention
characteristics of lubricating
greases —
Part 2:
Method with water wash-out
Produits pétroliers et lubrifiants — Détermination des
caractéristiques antirouille des graisses lubrifiantes —
Partie 2: Méthode avec délavage à l’eau
PROOF/ÉPREUVE
Reference number
ISO/TS 11007-2:2021(E)
ISO 2021
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ISO/TS 11007-2:2021(E)
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ISO/TS 11007-2:2021(E)
Contents Page

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

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

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

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

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Sampling ........................................................................................................................................................................................................................ 2

6 Apparatus and materials.............................................................................................................................................................................. 2

7 Reagents ........................................................................................................................................................................................................................ 2

8 Preparation of the apparatus .................................................................................................................................................................. 3

9 Test procedure ........................................................................................................................................................................................................ 4

10 Dismantling the apparatus ........................................................................................................................................................................ 5

11 Inspection .................................................................................................................................................................................................................... 5

12 Precision ....................................................................................................................................................................................................................... 6

13 Test report ................................................................................................................................................................................................................... 6

Annex A (normative) Test rig apparatus .......................................................................................................................................................... 7

Annex B (informative) Various ratings illustrating the degree of corrosion ..............................................................9

Bibliography .............................................................................................................................................................................................................................10

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ISO/TS 11007-2:2021(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

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

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels

and lubricants from natural or synthetic sources.

This first edition of ISO/TS 11007-2, together with ISO 11007-1, cancels and replaces ISO 11007:1997,

which has been technically revised.
The main changes compared to the previous edition are as follows:

— the document has been divided in two parts: part 1 on dynamic wet conditions and part 2 specifying

the method with water wash-out.
— other water types and user-specified solutions may be used in this test.
A list of all parts in the ISO 11007 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
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ISO/TS 11007-2:2021(E)
Introduction

ISO 11007-1 specifies a method for the evaluation of the corrosion protection properties of lubricating

grease in the presence of non-flowing water; the test bearing is immersed partially in the test fluid.

In some industries (e.g. wet sections of paper mills, roll neck bearings of rolling mills) the bearings are

submitted to flow of water, rolling emulsions, paper treatment liquors, etc. In case of seal damage of the

bearings, the corrosion inhibitors present in the grease may be potentially washed out, hence impairing

the corrosion protection properties.

This document describes a procedure using the flow of test fluid (wash-out) instead of the non-flow

[1]
conditions described in ISO 11007-1 .
This test method is commonly known as Emcor test in the industry.

A rolling bearing grease may be not suitable to lubricate plain bearings or gears.

The precision of the method described in this document has not yet been determined by an

interlaboratory study.
1) Emcor stands for Emulsion corrosion.
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TECHNICAL SPECIFICATION ISO/TS 11007-2:2021(E)
Petroleum products and lubricants — Determination of
rust-prevention characteristics of lubricating greases —
Part 2:
Method with water wash-out

WARNING — The use of this document can involve hazardous materials, operations and

equipment. This document does not purport to address all of the safety problems associated

with its use. It is the responsibility of users of this document to take appropriate measures

to ensure the safety and health of personnel prior to the application of the document, and to

determine the applicability of any other restrictions for this purpose.
1 Scope

This document specifies a method for the determination of the rust prevention characteristics of

lubricating grease in the presence of a flow of an aqueous test fluid.

This test method is used to assess the ability of a grease to prevent corrosion in rolling bearings

operated in presence of water, synthetic sea water or any industrial aqueous pollutant, under wash out

conditions.

NOTE For the purposes of this document, the term “% (m/m)” is used to represent the mass fraction.

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 15, Rolling bearings — Radial bearings — Boundary dimensions, general plan
ISO 648, Laboratory glassware — Single-volume pipettes

ISO 1998-1, Petroleum industry — Terminology — Part 1: Raw materials and products

ISO 3696, Water for analytical laboratory use — Specification and test methods

ISO 3838, Crude petroleum and liquid or solid petroleum products — Determination of density or relative

density — Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods

ISO 7120, Petroleum products and lubricants — Petroleum oils and other fluids — Determination of rust-

preventing characteristics in the presence of water
ISO 23572, Petroleum products — Lubricating greases — Sampling of greases
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1998-1 and the following

apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
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ISO/TS 11007-2:2021(E)
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
corrosion

chemical reaction on metal surfaces, when (rolling bearing) steel is in contact with moisture, e. g. water

or acid, that causes oxidation of surfaces
4 Principle

A test portion of grease is run in a specialized and carefully cleaned test rig under specified conditions

for a period of approximately one week with a predetermined sequence of running and stopping. At

the end of the test period, the apparatus is dismantled and the condition of the outer ring track of the

bearing is examined and rated according to the degree of corrosion.
5 Sampling

Unless otherwise specified, sampling shall be conducted in accordance with ISO 23572. The sample

shall be evaluated on a representative portion. Any drum, barrel, tanker compartment or any type of

container delivered to the end user may be sampled and analysed at the discretion of the purchaser.

6 Apparatus and materials

6.1 Test bearings, double-row self-aligning ball bearings conforming to 1306 K of ISO 15 with a steel

cage or polyamide cage, specially inspected and packed to prevent rust.
6.2 Test rig, as specified in Annex A.

6.3 Peristaltic pump, capable of delivering at a constant flow rate of 2,10 ml/min ± 0,2 ml/min (ca.

3 000 ml for the whole test which equals to 1 000 ml for every 8 h rotation of the test rig).

NOTE Multi-channel peristaltic pumps exist, up to 24 channels, allowing to feed the necessary number of

plummer blocks.
...