Petroleum and natural gas industries - Evaluation and testing of thread compounds for use with casing, tubing, line pipe and drill stem elements (ISO 13678:2010)

ISO 13678:2010 provides requirements, recommendations and methods for the testing of thread compounds intended for use on threaded casing, tubing, and line pipe connections; and for thread compounds intended for use on rotary shouldered connections. The tests outlined are used to evaluate the critical performance properties and physical and chemical characteristics of thread compounds under laboratory conditions.
These test methods are primarily intended for thread compounds formulated with a lubricating base grease and are not applicable to some materials used for lubricating and/or sealing thread connections. It is recognized that many areas can have environmental requirements for products of this type. ISO 13678:2010 does not include requirements for environmental compliance. It is the responsibility of the end user to investigate these requirements and to select, use and dispose of the thread compounds and related waste materials accordingly.

Erdöl- und Erdgasindustrie - Beurteilung und Prüfung von Gewindefetten zur Verwendung an Futter-, Steig- und Leitungsrohren und an Bohrgestängeteilen (ISO 13678:2010)

Industries du pétrole et du gaz naturel - Évaluation et essais des graisses pour filetage utilisées pour les tubes de cuvelage, les tubes de production, les tubes de conduites et les éléments de garnitures de forage (ISO 13678:2010)

L'ISO 13678:2010 fournit des exigences, des recommandations et des méthodes pour les essais des graisses pour filetage à utiliser sur des connexions filetées de tubes de cuvelage, de tubes de production et de tubes de conduites, ainsi que pour les graisses pour filetage à utiliser sur des connexions rotatives à épaulement. Les essais décrits dans l'ISO 13678:2010 sont utilisés pour évaluer les caractéristiques de performance critiques des graisses pour filetage et leurs caractéristiques physico-chimiques dans des conditions de laboratoire.
Ces méthodes d'essai sont principalement indiquées pour les graisses pour filetage formulées à partir d'une graisse lubrifiante de base et ne sont pas applicables à certains produits utilisés pour la lubrification et/ou l'étanchéité des connexions filetées. Il est admis que beaucoup de zones d'exploitation peuvent avoir des exigences environnementales pour ce type de produits. L'ISO 13678:2010 ne comprend pas d'exigences pour mise en conformité environnementale. Il est de la responsabilité de l'utilisateur final d'examiner ces exigences et de sélectionner, d'utiliser et de détruire les graisses pour filetage et les déchets associés en fonction de celles-ci.

Industrija za predelavo nafte in zemeljskega plina - Ovrednotenje in preskušanje navojnih spojev za uporabo pri zaščitnih, proizvodnih (dvižnih) in vrtalnih elementih (ISO 13678:2010)

Ta mednarodni standard določa zahteve, priporočila in metode za preskušanje navojnih spojev za uporabo pri navojnih zaščitnih in proizvodnih zvez ter za navojne spoje za uporabo na vrtečih vijačnih zvezah. Predstavljeni preskusi se uporabljajo za vrednotenje kritičnih lastnosti delovanja ter fizičnih in kemičnih lastnosti navojnih spojev pod laboratorijskimi pogoji. Te preskusne metode so namenjene predvsem za navojne spoje, oblikovane z mastjo za mazalno osnovo, in se ne uporabljajo za nekatere materiale za mazanje in/ali tesnjenje navojnih spojev. Znano je, da lahko imajo številna območja okoljske zahteve za izdelke te vrste. Ta mednarodni standard ne vključuje zahtev za okoljsko skladnost. Končni uporabnik je odgovoren, da te zahteve razišče ter skladno z njimi izbere, uporabi in zavrže navojne spoje ter povezane odpadne materiale.

General Information

Status
Published
Publication Date
17-Jan-2012
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
18-Jan-2012
Completion Date
18-Jan-2012

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SLOVENSKI STANDARD
SIST EN ISO 13678:2012
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Petroleum and natural gas industries - Evaluation and testing of thread compounds for

use with casing, tubing, line pipe and drill stem elements (ISO 13678:2010)
Erdöl- und Erdgasindustrie - Beurteilung und Prüfung von Gewindefetten zur
Verwendung an Futter-, Steig- und Leitungsrohren und an Bohrgestängeteilen (ISO
13678:2010)

Industries du pétrole et du gaz naturel - Évaluation et essais des graisses pour filetage

utilisées pour les tubes de cuvelage, les tubes de production, les tubes de conduites et

les éléments de garnitures de forage (ISO 13678:2010)
Ta slovenski standard je istoveten z: EN ISO 13678:2012
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 13678:2012 en,fr

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

---------------------- Page: 1 ----------------------
SIST EN ISO 13678:2012
---------------------- Page: 2 ----------------------
SIST EN ISO 13678:2012
EUROPEAN STANDARD
EN ISO 13678
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2012
ICS 75.180.10 Supersedes EN ISO 13678:2009
English Version
Petroleum and natural gas industries - Evaluation and testing of
thread compounds for use with casing, tubing, line pipe and drill
stem elements (ISO 13678:2010)

Industries du pétrole et du gaz naturel - Évaluation et Erdöl- und Erdgasindustrie - Beurteilung und Prüfung von

essais des graisses pour filetage utilisées pour les tubes de Gewindefetten zur Verwendung an Futter-, Steig- und

cuvelage, les tubes de production, les tubes de conduites Leitungsrohren und an Bohrgestängeteilen (ISO

et les éléments de garnitures de forage (ISO 13678:2010) 13678:2010)
This European Standard was approved by CEN on 3 December 2011.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13678:2012: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 13678:2012
EN ISO 13678:2012 (E)
Contents Page

Foreword ..............................................................................................................................................................3

---------------------- Page: 4 ----------------------
SIST EN ISO 13678:2012
EN ISO 13678:2012 (E)
Foreword

The text of ISO 13678:2010 has been prepared by Technical Committee ISO/TC 67 “Materials, equipment

and offshore structures for petroleum, petrochemical and natural gas industries” of the International

Organization for Standardization (ISO) and has been taken over as EN ISO 13678:2012 by Technical

Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and

natural gas industries” the secretariat of which is held by AFNOR.

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 July 2012, and conflicting national standards shall be withdrawn at the

latest by July 2012.

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

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 13678:2009.

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, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice

The text of ISO 13678:2010 has been approved by CEN as a EN ISO 13678:2012 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 13678:2012
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SIST EN ISO 13678:2012
INTERNATIONAL ISO
STANDARD 13678
Third edition
2010-12-01
Petroleum and natural gas industries —
Evaluation and testing of thread
compounds for use with casing, tubing,
line pipe and drill stem elements
Industries du pétrole et du gaz naturel — Évaluation et essais des
graisses pour filetage utilisées pour les tubes de cuvelage, les tubes de
production, les tubes de conduites et les éléments de garnitures de
forage
Reference number
ISO 13678:2010(E)
ISO 2010
---------------------- Page: 7 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
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ii © ISO 2010 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
Contents Page

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

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

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

2 Conformance .........................................................................................................................................1

2.1 Dual citing of normative references ....................................................................................................1

2.2 Units of measurement...........................................................................................................................1

3 Normative references............................................................................................................................2

4 Terms and definitions ...........................................................................................................................2

5 Thread compound characteristics.......................................................................................................3

5.1 Product characteristics.........................................................................................................................3

5.2 Physical and chemical characteristics................................................................................................4

6 Thread compound performance properties........................................................................................8

6.1 Small-scale test .....................................................................................................................................8

6.2 Frictional properties..............................................................................................................................8

6.3 Extreme surface contact pressure (gall resistance) properties for casing, tubing and line

pipe .........................................................................................................................................................9

6.4 Fluid sealing properties for casing, tubing and line pipe ...............................................................10

7 Quality assurance and control...........................................................................................................10

8 Marking requirements.........................................................................................................................11

8.1 Marking.................................................................................................................................................11

8.2 Labelling...............................................................................................................................................11

Annex A (informative) API modified thread compound ................................................................................12

Annex B (normative) Casing, tubing and line pipe reference standard formulation.................................16

Annex C (normative) Penetration test ............................................................................................................18

Annex D (normative) Evaporation test ...........................................................................................................19

Annex E (normative) Oil separation test ........................................................................................................20

Annex F (normative) Application/adherence test..........................................................................................21

Annex G (normative) Gas evolution test ........................................................................................................22

Annex H (normative) Water leaching test.......................................................................................................26

Annex I (informative) Frictional properties test .............................................................................................29

Annex J (informative) Extreme surface contact pressure (galling) test for casing, tubing and line

pipe .......................................................................................................................................................39

Annex K (informative) Fluid sealing test for casing, tubing and line pipe..................................................40

Annex L (informative) Corrosion inhibition tests ..........................................................................................43

Annex M (informative) Compound high-temperature stability test..............................................................44

Bibliography......................................................................................................................................................45

© ISO 2010 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(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 13678 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures

for petroleum, petrochemical and natural gas industries, Subcommittee SC 5, Casing, tubing and drill pipe.

This third edition cancels and replaces the second edition (ISO 13678:2009), of which it constitutes a minor

revision.

It is the intent of ISO/TC 67 that the second and third editions of ISO 13678 both be applicable, at the option

of the purchaser, for a period of six months from the first day of the calendar quarter immediately following the

date of publication of this third edition, after which period the second edition will no longer be applicable.

iv © ISO 2010 – All rights reserved
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SIST EN ISO 13678:2012
ISO 13678:2010(E)
Introduction
[9]

This International Standard is based on API RP 5A3 , second edition, July 2003, with errata and inclusion of

1)[13]

all clauses of API RP 7A1 , first edition, November 1992, incorporated into Annex I.

This International Standard specifies requirements and gives recommendations for the manufacture, testing

and selection of thread compounds for use on casing, tubing, line pipe and drill stem elements based on the

current industry consensus of good engineering practice.

It is intended that the words casing and tubing apply to the service application, rather than to the diameter of

the pipe.

The performance requirements of thread compounds for use with casing, tubing, line pipe, premium

connections and rotary shouldered connections include:

a) consistent frictional properties that allow both proper and uniform connection engagement;

b) adequate lubrication properties to resist galling or damage of connection contact surfaces during make-up

and breakout;

c) adequate sealing properties for thread-type seal connections and/or not inhibiting the sealing properties

of non-thread sealing connections (e.g. metal-to-metal seals, polytetrafluoroethylene seals, etc.)

depending upon service requirements;

d) physical and chemical stability both in service and in expected compound storage conditions;

e) properties that allow effective application to the connection contact surfaces in expected service

conditions and environment.
In addition, compounds for rotary shouldered connections provide:

⎯ lubrication of the connection members during make-up to achieve the proper axial bearing stress;

⎯ an effective seal between connection shoulders to prevent wash-out by drilling fluids;

⎯ more uniform distribution of circumferential bearing stress if shoulders are not parallel;

⎯ resistance to additional make-up down hole.

When evaluating the suitability of a thread compound, the user can define the service conditions and then

consider field trials and field service experience in addition to laboratory test results. Appropriate

supplementary tests can be utilized for specific applications which are not evaluated by the tests herein. The

user and manufacturer are encouraged to discuss service applications and limitations of the compound being

considered.

Representatives of users and/or other third-party personnel are encouraged to monitor tests wherever

possible. Interpolation and extrapolation of test results to other products, even of similar chemical composition,

are not recommended.
1) Obsolete. Incorporated into this International Standard.
© ISO 2010 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)

Testing in compliance with this International Standard does not in itself ensure adequate thread

compound/connection system performance in field service. The user has the responsibility of evaluating the

results obtained from the recommended procedures and test protocols and determining whether the thread

compound/connection system in question meets the anticipated requirements of that particular field service

application.
vi © ISO 2010 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 13678:2012
INTERNATIONAL STANDARD ISO 13678:2010(E)
Petroleum and natural gas industries — Evaluation and testing
of thread compounds for use with casing, tubing, line pipe and
drill stem elements
1 Scope

This International Standard provides requirements, recommendations and methods for the testing of thread

compounds intended for use on threaded casing, tubing, and line pipe connections; and for thread compounds

intended for use on rotary shouldered connections. The tests outlined are used to evaluate the critical

performance properties and physical and chemical characteristics of thread compounds under laboratory

conditions.

These test methods are primarily intended for thread compounds formulated with a lubricating base grease

and are not applicable to some materials used for lubricating and/or sealing thread connections. It is

recognized that many areas can have environmental requirements for products of this type. This International

Standard does not include requirements for environmental compliance. It is the responsibility of the end user

to investigate these requirements and to select, use and dispose of the thread compounds and related waste

materials accordingly.
2 Conformance
2.1 Dual citing of normative references

In the interest of world-wide application of this International Standard, Technical Committee ISO/TC 67 has

decided, after detailed technical analysis, that certain of the normative documents listed in Clause 3 and

prepared by ISO/TC 67 or another ISO Technical Committee are interchangeable in the context of the

relevant requirement with the relevant document prepared by the American Petroleum Institute (API), the

American Society for Testing and Materials (ASTM) and the American National Standards Institute (ANSI).

These latter documents are cited in the running text following the ISO reference and preceded by “or”, for

example “ISO XXXX or API YYYY”. Application of an alternative normative document cited in this manner will

lead to technical results different from those obtained from the use of the preceding ISO reference. However,

both results are acceptable and these documents are thus considered interchangeable in practice.

2.2 Units of measurement

In this International Standard, data are expressed in both the International System (SI) of units and the United

States Customary (USC) system of units. For a specific order item, it is intended that only one system of units

be used, without combining data expressed in the other system.

Products manufactured to specifications expressed in either of these unit systems shall be considered

equivalent and totally interchangeable. Consequently, compliance with the requirements of this International

Standard as expressed in one system provides compliance with requirements expressed in the other system.

For data expressed in the SI system, a comma is used as the decimal separator and a space as the

thousands separator. For data expressed in the USC system, a dot (on the line) is used as the decimal

separator and a space as the thousands separator. In the text, data in SI units are followed by data in USC

units in parentheses.
© ISO 2010 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
3 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 2137, Petroleum products and lubricants — Determination of cone penetration of lubricating greases and

petrolatum

ISO 2176, Petroleum products — Lubricating grease — Determination of dropping point

ASTM D217, Standard Test Methods for Cone Penetration of Lubricating Grease

ASTM D2265, Standard Test Method for Dropping Point of Lubricating Grease Over Wide Temperature

Range

ASTM D4048, Standard Test Method for Detection of Copper Corrosion from Lubricating Grease

4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1
API connection

pipe assembly consisting of two external threaded connectors (pins) and a coupling with two internal threaded

connectors (box) or one pin and an integral box manufactured in accordance with ISO/API specifications

4.2
API modified thread compound
[8]
compound designated as “modified thread compound” in API BUL 5A2
[9]
NOTE API BUL 5A2 is obsolete and has been replaced by API RP 5A3 .
4.3
box
connector with internal threads
4.4
casing, tubing and line pipe
CT and LP
production and delivery tubulars
4.5
drill stem elements

components of the drilling assembly from the swivel or top drive to the bit, composed of the kelly, drill string,

subs, drill collars and other down-hole tools such as stabilizers and reamers
4.6
pin
connector with external threads
4.7
premium connection

connection with or without metal-to-metal seal(s) that can provide greater clearance and/or higher

performance properties when compared to the API connections
2 © ISO 2010 – All rights reserved
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SIST EN ISO 13678:2012
ISO 13678:2010(E)
4.8
proprietary connection

connection, without published specifications, made and marketed by companies with exclusive rights to

manufacture and/or sell
4.9
reference standard formulation

〈casing, tubing and line pipe〉 thread compound formulated, in accordance with the requirements of Annex B,

to include the limitations and tolerances specified in Tables B.1, B.2 and B.3
4.10
reference standard formulation

〈rotary shouldered connection〉 thread compound formulated in accordance with the requirements of I.4.2.3

NOTE The reference standard formulations are not intended for general field service.

4.11
rotary shouldered connection
RSC
connection used on drill stem elements, which has threads and sealing shoulders
4.12
seal
barrier resisting the passage of fluids, gases and liquids
4.13
storage compound

substance applied to threaded pipe connections for protection against corrosion, during shipment and/or

storage only, that is not used for connection make-up
4.14
thread compound

substance applied to threaded pipe connections prior to make-up for lubrication during assembly and

disassembly and for assistance in sealing internal and external pressures

NOTE Some thread compounds can also contain substances that provide storage compound properties.

4.15
thread compound/connection system

system consisting of the various critical threaded pipe connection components, including the specific

connection geometry and the individual connection materials and coatings combined with the thread

compound
4.16
tool joint
threaded connector used to join sections of drill pipe
5 Thread compound characteristics
5.1 Product characteristics

This International Standard outlines tests to characterize the performance of thread compounds under service

conditions, rather than specifying the formulation. Thus, the purchaser and the manufacturer should agree on

the product characteristics to be provided, such as the following:
⎯ thickener type;
⎯ fluid type;
© ISO 2010 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
⎯ appearance;
⎯ dropping point;
⎯ mass density;
⎯ oil separation;
⎯ flash point;
⎯ water-absorption resistance;
⎯ gas evolution;
⎯ rheological properties;
⎯ compound/copper reaction;
⎯ extreme-pressure properties;
⎯ fluid sealing properties;
⎯ frictional properties;
⎯ corrosion inhibition;
⎯ brushing/adherence;
⎯ service applications;
⎯ storage and service-life limitations.

The thread compound manufacturer shall revise product bulletins when any modification in formulation is

implemented which would result in a change of any critical performance characteristics. All documentation

shall provide data which are representative of a typical production batch.

Test and inspection records generated under this International Standard shall be retained by the manufacturer

and shall be available to the purchaser for a minimum of three years after the date of manufacture.

5.2 Physical and chemical characteristics
5.2.1 General

The physical and chemical characteristics of performance-based thread compounds are specified in Table 1.

These properties can vary widely and the formulation of many of the available compounds is proprietary.

Therefore, the user should consider the performance properties and recommendations given by the

compound manufacturers, in addition to the physical and chemical characteristics outlined in Table 1.

4 © ISO 2010 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
Table 1 — Thread compound physical and chemical characteristics tests
a b
Property Test method Performance value
Dropping point, °C (°F) M ISO 2176 or ASTM D2265 138 (280) min. S
Evaporation, % volume fraction loss M See Annex D
24 h at 100 °C (212 °F) 3,75 max. S
Gas evolution, cm M See Annex G
120 h at 66 °C (151 °F) 20 max. S
Oil separation, % volume fraction M See Annex E
24 h at 100 °C (212 °F) (nickel gauze cone) 10,0 max. S
Penetration, mm × 10 M See Annex C
Worked, 60 strokes at 25 °C (77 °F)
Production acceptability range (min. to max.) ±15 max. S
Worked, 60 strokes at −7 °C (19 °F) Report typical R
Mass density, % variance M Manufacturer's controls
From production mean value ±5,0 max. S
Water leaching, % mass fraction loss M See Annex H
2 h at 66 °C (151 °F) 5,0 max. S
Application and adherence M See Annex F S
Cold application Applicable at −7 °C R
(19 °F)
Adherence at 66 °C (151 °F), % mass fraction loss 25 max. R
Copper corrosion M ASTM D4048
Specified corrosion level 1B or better R
Corrosion inhibition, % area corrosion I See Annex L
500 h at 38 °C (100 °F) <1,0 R
Compound stability, 12 months' storage M Manufacturer's controls
Penetration change, mm × 10 See Annex C ±30 max. R
Oil separation, % volume fraction See Annex E 10,0 max. R
Compound stability, field service I See Annex M
24 h at 138 °C (280 °F), % volume fraction loss 25,0 max. R

NOTE The values in this table are not intended to be consistent with Table A.3, which presents the original values and

[8] [9]

requirements of API BUL 5A2 (obsolete, replaced by API RP 5A3 ). They have been revised to take into account the

high-temperature requirements of current field operating conditions and the mass density variations between different proprietary thread

compound formulations.
M mandatory;
I informative.
S specification;
R recommendation.
© ISO 2010 – All rights reserved 5
---------------------- Page: 17 ----------------------
SIST EN ISO 13678:2012
ISO 13678:2010(E)
5.2.2 Dropping point

The dropping point test measures the tendency of grease to soften and flow when hot. Results of the dropping

point test may be used as an indication of the maximum temperature to which a grease can be exposed

without liquefaction or oil separation, as a means of determining the type of grease and establishing

manufacturing or quality control limits
...

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