WD/TC068/006 : 2023  
ICS 75.160.20  
 
© EA C 2023                                                                                                                         First Edition 2023 
 WORKING DRAFT EAST AFRICAN STANDARD  
Lubricating grease  — Specification  
EAST AFRICAN COMMUNITY  WD/TC068/006 : 2023  
ii © EAC 2023 – All rights reserved  
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 WD/TC068 /006: 2023  
© EAC 2023 – All right s reser ved iii 
 Foreword  
Development  of the East Af rican Standards ha s been n ecessit ated by the need for harmonizing requirements 
governing quality of products and services in the East African Community. It is envisaged tha t through 
harmonized stan dardization, trade barriers that are encount ered when goods  and services are exchange d 
within the Community w ill be removed.  
The Community has established an East African Standards Committee  (EASC)  mandated to develop and 
issue Ea st African Standards  (EAS ). The Committee is composed of representati ves o f the Nati onal 
Standards Bod ies in Partner States, together with the representatives from the public and private sector 
organizations  in the community .  
East African Standards are de veloped through  Technical  Committees that are representative of key 
stakeh olders inc luding government,  academi a, cons umer groups, priv ate sector and other interested parties. 
Draft East African Standards are circulated to stakeholders through the National Standards Bodies in the 
Partner States. The comments received are dis cusse d and inco rporated before fi nalization of s tandards, in 
acco rdance with the Principles and procedures for development of East African Standards . 
East African Standards are subject to  review, to keep pace with technological advances. Users of the East 
African Standar ds are therefore e xpected to ensu re that they alwa ys have the latest versions of the standards 
they are implementing .  
The committee responsible for this document is Techni cal Committee EASC/TC  068, Petroleum and 
petroleum products.  
Attention is drawn to the possibility t hat some o f the elements of this docu ment may be subj ect of patent 
rights. EAC shall not be held responsi ble for i dentifying any or all such patent rights . 
 
 DRAF T EAS T AFRIC AN STANDARD  DEAS 1146 : 2023  
 
© EAC 2023 – All rights reserved  1 
 Lubricating grease  — Specification  
1 Scope   
This Draft East African Standard speci fies performance requirem ents of four classes of lub ricating grease, 
namely industrial non -extreme pressure, industrial high -performance extreme pressure, automotive non-
extreme pressure, and automotive and multi -purpose extreme pressure, each in four consistency grades, a nd 
all of which can contain suspend ed solid lubric ants. 
2 Normative references   
The following documents are ref erred to in the text in s uch a  way t hat some or all of their con tent constitutes 
requirem ents of this  document.  For dated references, only the ed ition cit ed applies. For undated references, 
the latest edition of the referenced document (in cluding any amend ments) applies.  
ASTM D 93, Standard test methods for flash point by Pensky -Martens closed cup tester  
ASTM D 95, Standard test method for water in  petroleu m products and bituminous m aterials by distillation  
ASTM D 217, Standard test m ethods for cone penetration of lubricating grease   
ASTM D 445, Standard test method for kinematic viscosity of transparent and opaque liquids (and calculation 
of dynami c viscosi ty) 
ASTM D 566, Standard te st method for dropping point of lubricating grea se 
ASTM D 942, Standard test method for oxidation stability of lubricating greases by the oxygen pressure vessel 
method  
ASTM D 1263, Standard test method for leakage tenden cies of a utomotive wheel bearing gre ases  
ASTM D 1264, Standard test method for determining the water washout characteristics of lubricating greases  
ASTM D 1742, Standard test method for oil separation from lubricating grease  during storage  
ASTM D 1743, Standard tes t method for determining co rrosion preventive properties of lubricating greases  
ASTM D 1831, Standard test method for roll stability of lubricating grease  
ASTM D 2265, Standard test method for dropping point of lubricating grease over wide tempera ture range 
ASTM D 2266, Standard tes t method for wear preventitive characteristics of lubricating grease (four-ball 
method)  
ASTM D 2509 , Standard test method for measurement of load -carrying capacity of lubricating grease (Timken 
method)  
ASTM D 2596, Stand ard test method for measurement of e xtreme -pressure properties of lubricating grease 
(four-ball method)  DEAS 1146 : 2023  
2 © EAC 2023 – All rights reserved  
 ASTM D 4048, Standard test method for detection of copper corrosion from lubricating grease  
ASTM D 4049, Standard test method for determining the resist ance of l ubricating grease to water spray   
ASTM D 4057, Standard Practice for manual sampling of petroleum and pet roleum products   
ASTM D 4289, Standard test method for elastomer compatibility of lubricating greases and fluids  
ASTM D 4290, Standard test me thod for determining the leakage ten dencies of automotive wheel bearing 
grease under accelerated conditions  
IP 34, Determination of flash point – Pensky -Martens closed cup method  
IP 50, Determination of cone penetration of lubricating grease  
IP 71, Petrol eum produ cts – Transparent and opaqu e liquids – Determination of kinematic viscosity and 
calculation o f dynamic viscosity  
IP 132, Petroleum products – Lubricating grease – Determination of dropping point  
IP 220, Petroleum products and lubricants – Determin ation of rust-prevention characteris tics of lubricating 
greases  
IP 396, Determination of dropping  point of lubricating grease – Automatic apparatus method  
3 Terms and defi nitions   
For the purposes of this document , the following terms and defin itions apply .  
ISO an d IEC maintain terminologic al databases fo r use in s tandardization at  the following addres ses: 
— ISO On line browsing platform: available at http://ww w.iso.org/obp   
3.1 
additive  
compou nd added to lubricating g rease to improv e either the performance of the grease, or its storage  stability 
(or both)  
3.2 
lubricati ng grease  
semi -solid to solid product consisting of a stabilized mixture of liquid lubricant with soaps or other thickeners, 
that may contain other addit ives imparting special properties . 
4 Requirements  
4.1 General requirements  
4.1.1  Lubricating grease shall ; 
a) consis t of base oil, a thickening agent and acceptable additives wit h the ability to resist changes in 
structure and consi stency during servic e; and   
b) be ho mogeneous, free from lumps, abrasive matter  and any other impurities that might hav e a 
deleteriou s effect on its performance . DEAS 1146  : 2023 
© EAC 2023 – All right s reser ved 3 
 4.2 Base  oil 
The base  oil used in the manufacture of the Lubricating grease  shall comply with the relevant requirements in 
table 1 and  table 2 with regard to the class (s ee claus e 1) and the consistency gr ade of the grease.  
4.3 Grease  
Lubricating grease shall comp ly with the relevant requirements in table 1 and table 2, appropriate to  the 
consiste ncy grade of the grease as spe cified by the purchaser.  
4.4 Specific req uirements  
Lubricating grease shall comply with the requirements given in Table 1 and Table 2 when tested in 
accordance with the test methods specified therein  
Table 1 — Specific require ments fo r industrial greases  and th eir base oils  
S/NO.  Property  Requirement  Test 
method  Industrial non -EPa Industrial high performance 
EPa 
Consistency grade  
a) Grea se 0 1 2 3 1 2 3 
i)  Penetration 
worked, 10-1 
mm 355 to  
385 
 310 to  
340 265 to  
295 220 to 
250 310 to  
340 
 
 265 t o 
295 
 220 to 
250 
 ASTM D 
217  
IP 50  
ii)  Drop point, °C, 
min. 
 90 90 90 90 180 
or 
260b 180 or 
260b  180 or 
260b ASTM D 
566  
ASTM D 
2265  
or IP 132  
IP 396  
iii)  Water washout 
at 38 °C, % (by  
mass), max.  10 10 10 10 - - - ASTM D 
1264  
iv)  Water washout 
at 79 °C,  % (by 
mass), max.      15 15 15 ASTM D 
1264  
v)  Water spray -off 
at 38 °C, % (by  
mass), max.  - - - - 20 20 20 ASTM D 
4049  
vi)  Oil separation, 
% (by mass), 
max.  10 10 8 5 6 6 6 ASTM D 
1742  
vii)  Rust prevention  Pass Pass  Pass  Pass  - - - ASTM D 
1743  
viii)  Rust E MKORc, 
SKFc - - - - Pass Pass Pass IP 220  
ix)  4 ball wear, 
scar diameter , 
mm, max. - - - - 0.90 0.90 0.90 ASTM D 
2266  DEAS 1146 : 2023  
4 © EAC 2023 – All rights reserved  
 x)  4 ball EP load 
wear index, kgf, 
min. - - - - 30 30 30 ASTM D 
2596  
xi)  4 ball EP weld 
point, kgf, m in. - - - - 200 200 200 ASTM D 
2596 
xii)  Timk en ok loa d, 
kg, min.  - - - - 25 25 25 ASTM D 
2509  
xiii)  Worked  
stability, 
change in 
penetration 
between 60 and 
20 000 double 
strokes, %, 
max.  10 10 10 10 - - - ASTM D 
217 
xiv)  Worked 
stability, 
change in 
penetration 
betwee n 60 
and 100 000 
double strokes, 
%, max.  - - - - 10 10 10 ASTM D 
217 
xv)  Bearing 
leakage at 160 
°C, g, max.  - - - - 10 10 10 ASTM D 
4290  
xvi)  Copper 
corrosion at 
100 °C 1 1 1 1 1 1 1 ASTM D 
4048  
xvii)  Oxidation 
stabi lity after 
100 h, kPa, 
max.  70 70 70 70 50 50 50 ASTM D 
942 
xviii) Water content, 
% (by mass), 
max. 2.0 2.0 2.0 2.0 0.5 0.5 0.5 ASTM D 
95 
xix)  Roll stability, % 
change, max.  20 20 20 20 10 10 10 ASTM D 
1831   
xx)  Elastomer 
compatible 
volume change  - - - - -5 to +30 -5 to 
+30 -5 to 
+30 ASTM D 
4289  
xxi)  Elastomer 
compat ible 
hardness 
change  - - - - -15 to 
+2 -15 to 
+2 -15 to 
+2 ASTM D 
4289 
xxii)  Soap typ e Repor t Repor t  
xxiii) Type of 
susp ended 
solid lubricant  Report  Report   
xxiv)  Suspended 
solid lubricant 
addition, % (by 
mass) Report  Report   
b) Base oil  
i)  Kinematic 22 to 460  22 to  22 to  22 to  68 to 68 to  68 to  ASTM D DEAS 1146  : 2023 
© EAC 2023 – All right s reser ved 5 
 viscosity at 40 
°C, mm2/s 460 460 460 1000 1000  1000  445  
or IP 71  
ii)  Flash poi nt, °C, 
min. 180 180 180 180 200 200 200 ASTM D 
93 or IP 
34 
a EP extreme pressur e.  
b It is r ecommended that the drop point should be agreed on by the purchaser and the supplie r and th e followi ng is 
offered as a  guideline:  
For operating temperatures up t o 120 °C : drop point of 180 °C min. For operating temperatures up to 150 °C drop poi nt of 
260 °C min.  
c Rust tests approved by EMKOR and SKF bearing companies  
 
Table 2 — Spec ific req uiremen ts for automotive a nd multi -purpose greases and their base oils  
S/NO.  Property  Requir ement  Test 
method  Automotive  non-EPa  
 Automotive and multi -purpose 
EPa 
Consistency grade  
a) Grease  0 1 2 3 0 2 2½ 3 
i)  Penetration 
worked, 10-1 
mm 355 to 
385 310 t o 
340 265 
to 
295 220 
to 
250 355 to 
385 265 to  
295 250 to 
280 220 to  
250 ASTM D 
217  
IP 50  
ii)  Drop point, 
°C, min. 
 90 90 90 90 180 
 180  
 180  
 180 ASTM D 
566  
ASTM D 
2265  
or IP 
132  
IP 396  
iii)  Water 
washout at 
38 °C, % (by  
mass), max.  10 10 10 10 - - - - ASTM D 
1264  
iv)  Water 
washout at 
79 °C, % (by  
mass), max.  - - - - 15 15 15 15 ASTM D 
1264 
v)  Water spray -
off at 38 °C, 
% (by  mass), 
max.  - - - - 20 20 20 20 ASTM D 
4049  
vi)  Oil 
separation, % 
(by mass), 
max.  10 10 8 5 10 8 6 5 ASTM D 
1742  
vii)  Rust 
prevention  Pass Pass  Pass Pass  - - - - ASTM D 
1743  
viii)  Rust 
EMKORc, - - - - Pass Pass Pass Pass  IP 220 DEAS 1146 : 2023  
6 © EAC 2023 – All rights reserved  
 SKFc 
ix)  4 ball wear, 
scar 
diameter, 
mm, max. - - - - 0.90 0.90 0.90 0.90 ASTM D 
2266  
x)  4 ball EP 
load wear 
index, kgf , 
min. - - - - 30 30 30 30 ASTM D 
2596  
xi)  4 ball EP 
weld point, 
kgf, min.  - - - - 200 200 200 200 ASTM D 
2596 
xii)  Timken ok 
load, kg, min.  - - - - 18 18 18 18 ASTM D 
2509  
xiii)  Worked  
stability, 
change in 
penetra tion 
between 
60and 20 000 
double 
strokes, %, 
max.  10 10 10 10 - - - - ASTM D 
217 
xiv)  Worked 
stability, 
change in 
penetration 
betwee n 60 
and 100 000 
double 
strokes, % , 
max.  - - - - 10 10 10 10 ASTM D 
217 
xv)  Bearing 
leakage at 
105 °C, g, 
max.  7 7 7 7 - - - - ASTM D 
1263  
xvi)  Bearing 
leakage at 
160 °C, g, 
max.  - - - - 10 10 10 10 ASTM D 
4290  
xvii)  Copper 
corros ion at 
100 °C 1 1 1 1 1 1 1 1 ASTM D 
4048  
xviii) Oxidation 
stability after 
100 h, kPa, 
max.  70 70 70 70 50 50 50 50 ASTM D 
942 
xix)  Water 
content, % 
(by mass), 
max. 2.0 2.0 2.0 2.0 0.5 0.5 0.5 0.5 ASTM D 
95 
xx)  Roll stabili ty, 
% change, 
max.  20 20 20 20 10 10 10 10 ASTM D 
1831  
xxi)  Elastomer 
compatible  
volume - - - - -5 to +30 -5 to 
+30 -5 to 
+30 -5 to 
+30 ASTM D 
4289  DEAS 1146  : 2023 
© EAC 2023 – All right s reser ved 7 
 change  
xxii)  Elastomer 
compatible 
hardness 
change  - - - - -15 to 
+2 -15 to  
+2 -15 to  
+2 -15 to  
+2 ASTM D 
4289  
xxiii) Soap typ e Repor t Repor t   
 Type of 
suspended  
solid l ubricant  Report  Report    
 Suspended 
solid lubricant 
addition, % 
(by mass)  Report  Report    
b) Base oil  
i) Kinematic  
viscosity at 
40 EC, mm2/s 22 to 
460 22 to  
460 22 to  
460 22 to  
460 68 to  
1000  
  68 to  
1000  68 to  
1000  68 to  
1000  ASTM D 
445  
or IP 71  
ii) Flash p oint, 
°C, min. 180 180 180 180 200 200 200 200 ASTM D 
93 or IP 
34 
a EP: extreme pressur e.  
b aRust tests approved by EMKOR and SKF bearing compa nies. 
6 Packaging  
6.1 The lubricating grease  shall be packaged in suitable containers that w ill safegua rd their quality during 
transportation and storage.   
6.2  Only containers of the same size filled w ith the pr oduct from the same batch shall be pack aged together   
7 Labelling  
7.1 The containers shall be legibly and indelibly lab elled with the following  information : 
a) name of the product as “ lubricating gr ease”; 
b) descrip tion of product for example  ‘‘ Industrial non -EP lubricating grease, Industrial high pe rformance 
EP lubricating grease, Automotive non -EP lubricating grease or Automotive and multi -purpose EP 
lubricatin g grease” ; 
c) name and physical address of the manufacturer , regist ered trade mark or distributor’s ; 
d) type of thickener used ; 
e) batch ident ification n umber ; 
f) net content ; 
g) date of manufacture ; 
h) shelf life ; 
i) country of origin ; and  DEAS 1146 : 2023  
8 © EAC 2023 – All rights reserved  
 j) consistency grade of the product . 
7.2 For bulk transportation, the above information shall be pro vided in  the documentation accompanying 
the product.  
8 Sampling  
Sampling shall be d one according to ASTM D4057 or ASTM D4177.  DEAS 1146  : 2023 
© EAC 2023 – All right s reser ved 9 
 Anne x A 
(informativ e) 
 
Compatibility and application  
A.1 Compatibilit y and application  
A.1.1 Compatibility  
A.1.1.1 The m utual compat ibility of greases depends on the thickeners a nd the additives present and 
shall usually  be determined in experiments. I ncompatibili ty manif ests itself in structur al changes, particularly 
after short, moderate heating of the mixture, which affe cts the work ing pe netration, oil separation, dropping 
points, etc.  
A.1.1 .2 Changes in p roper ties caus ed by a change in the formulatio n cannot be predicte d exactly, even 
when th e same soaps or oils are use d. 
A.1.1. 3 Greases that contain the same soap type are usually compatible  with each other.  
A.1.1. 4 Table A.1 contain s compatibility guidelines for the differe nt types of grease and can be us ed as a 
guideline wh en recommending greases  to end users.  
NOTE  Not all types of g rease are  compatible, for  grease compatib ility, contact supplier".   
A.1.2 Application  
Table A.2 contains application guidelines  for the different types of  grease and can be us ed as a guidel ine 
when recommending greases to end users.   
© EAC 2023 – All rights reserved  1 
 Table  A.1 — Compatibility guidelines for lubricating greases by thickener type  
1 2 3 4 5 6 7 8 9 10 11 12 13 14 
Properties  Aluminium  
complex  Barium  Calcium  Calcium  
12Ha Calcium  
complex  Clay  Lithium  Lithium  
12Ha Lithium  
complex  Polyurea  Sodium  Calcium  
sulfonat e Lithium  
calcium  
mixture  
Alumi nium  
complex  C I I C I I I I C I I I I 
Barium  I C I C I I I I I I I I I 
Calcium  I I C C I B C B C I B C B 
Calcium complex  I I I B C I I I B C I C I 
Clay I I C C I C I I I I I I I 
Lithium  I I C C I I C C C I I B C 
Lithiu m 12Ha I I B C I I C C C I I B C 
Lithium  complex  C I C C B I C C C I I C B 
Polyurea  I I I I C I I I I C I B I 
Sodium  I I I I I I I I I I C I I 
Lithium calcium  
mixture  I I B B I I C C B I I B C 
Calcium  
sulfon ate I I C C C I B B C B I C B 
a 
12H:  12-hydroxystearate.  
NOTE  In the table,  
C indicates  compatibility  
I indicates  incompatibility  
B indicates  borderline  compatibility.  
  
2 © EAC 2023 – All rights reserved  
 Table 4 — Grease  application guide by thickener type  
1 2 3 4 5 6 7 8 9 10 11 12 13 
Properties  Aluminium  Sodium  Calcium – 
conven tional  Calcium – 
anhydrous  Lithium  Aluminium  
complex  Calcium  
complex  Lithium  
complex  Polyurea  Calcium  
sulfonate  Organo  
clay Lithium  
calcium  
mixture 
Drop ping point, EF 230 325-350 205-220 275-290 350-400 500+  500+  500+  470 500+  500+  350-400 
Dropping  point , EC 110 163-177 96-104 135-143 177-204 260+  260+  260+  243 260+  260+  177-204 
Maximum usable  
temperature,  EF 175 250 200 230 275 350 350 350 350 350 350 275 
Maximum usable  
temperature,  EC 79 121 93 110 135 177 177 177 177 177 177 135 
Water  resistance  Good to 
excellent  Poor to  fair Good to  
excellent  Excellent  Good  Good to  
excellent  Fair to  
excellent  Good to  
excellent  Good to  
excel lent Good to 
excellent  Fair to 
excellent  Good to  
excellent  
Work  stability  Poor  Fair Fair to good  Good to  
excellent  Good to  
exce llent Good to  
excellent  Fair to good  Good to  
excellent  Poor to  
good  Good to  
excellent  Fair to 
good  Good to  
excellent  
Oxida tion stability Excel lent Poor  to good  Poor  to 
excellent  Fair to  
excellent  Fair to 
excellent  Fair to  
excellent  Poor to  
good  Fair to  
excellent  Good to  
excellent  Good  Good  Fair to  
excellent  
Protection against  
rust Good to  
excellent  Good to  
excellent  Poor to  excellent  Poor to 
excellent  Poor  to 
excellent  Good to  
excellent  Fair to  
excellent  Fair to  
excellent  Fair to  
excellent  Good to  
excelle nt Poor to  
excellent  Fair to  
excellent  
Pumpability (in  
centralized  systems)  Poor  Poor to  fair Good  to 
excellent  Fair to  
excellent  Fair to 
excel lent Fair to 
good  Poor to  fair Good to  
excellent  Good to  
excellent  Good  Good  Fair to  
excellent  
Oil separation  Good Fair to good  Poor  to good  Good  Good to  
excellent  Good to  
excellent  Good to  
excellent  Good to  
excelle nt Good to 
excellent  Good to  
excellent  Good to  
excellent  Good to  
excellent  
Appearance  Smooth  and 
clear  Smooth to  
fibrous  Smooth and  
buttery  Smooth and  
buttery  Smooth and  
buttery  Smooth 
and buttery  Smooth 
and buttery  Smooth 
and buttery  Smooth  
and buttery  Smooth  and    
buttery Smooth  
and buttery  Smooth 
and buttery  
Other  properties  EPa grades  
available  Adhesive and 
cohesive  EPa grades  
available  EPa grades  
available  EPa grades  
available,  
reversible  EPa grades  
available,  
reversible  EPa and 
anti-wear  
inherent  EPagrades  
available  EPagrades  
available  EPa and 
anti-wear  
inherent  EPagrades  
available  EPa grades  
available  
Principal  uses  Thread  
lubricants  Rolling 
contact 
bearings  General uses 
for economy  Military  
multiserviceb Multi -
service  b 
automotive   
and Multi - 
serviceb 
and 
industria l Multiser vice
b automotive  
and 
industrial  Multiservice
b automotive  
and 
industrial  Multiservice
b automotive  
and 
industrial  Multiservice
b automotive  
and 
industrial  High temp.  
(frequent  
relube)  Multi -
serviceb 
automotive 
& industrial   
© EAC 2023 – All right s reser ved 3 
 industrial  
a EP: extreme pressure.  
b Multiserv ice includes rolling contact bearings, plain bearings, and others.   
  
© EAC 2023 – All rights reserved  1 
 Anne x B 
(normative)  
 
Quality verification  of lubricating grease  
B.1 Quality verification 
B.1.1  When a purchaser requ ires ongoing veri fication of the quality of lubricating grease, it is  suggested 
that, instea d of conc entratin g solely on eva luation of the final product, he also direct his attentio n to the 
manufacturer's quality sys tem. In this connection it should be not ed that SANS 9001  cover s the provisions of 
an integrated quality syst em.  
B.1.2  If the lubri cating gr ease doe s not bear the certification m ark a nd no information about the 
implement ation of quality control or testing  during manufacture is available to help in assessing the  quali ty of a 
consignment, and a purchaser wishes to  establish, by inspecti on and te sting of  samples of the  final product,  
whet her a consignment of lubricating grease complies with this standard, the  samplin g procedure given in 
ASTM D 4057  can be used.  
NOT E The sampling procedure applies to fully manufactur ed products only.  
B.2 Sampling and c omp liance with thi s standard  
B.2.1 Sampling 
B.2.1.1  General  
The sampling p rocedure given in B.2.1.2 shall be used in determining whether a lot compli es with the relev ant 
requirements of this standard. The samples so dr awn shall be deemed to represent  the lot .  
B.2.1.2  Samp les for inspect ion a nd testing  
After check ing for complia nce with the relevant requirements of 7.1 a nd 7.2, the relevant sampling pr ocedure 
given in ASTM D  4057 shall be used to determine whether a lot complies with this sta ndard, an d the sa mples 
so taken shall be deemed  to represent the lot for the respective p roperties.  
B.2.2  Compliance with th is stand ard 
Deem the lot to comply with the relevant requ iremen ts of this standard if, on inspection of the c ontainers and 
on testin g of the sample t aken in accorda nce with B.2.1. 2, no  defective is found.   
2 © EAC 2023 – All rights reserved  
 Bibliography  
TZS 798: 12021, Lubricating Grease  – Specification 
 
 WD/TC068 /006 : 2023  
   
 
© EAC 2023 – All rights reserv ed