PUBLIC REVIEW DRAFT DRAFT UGANDA 
STANDARD  
  DUS DEAS 937 
 
First  Edition  
2019-mm-dd 
 
 Reference number  
DUS DEAS 937: 2019  
 
© UNBS 2019 
   
Semi -gloss (egg shell) solvent borne paints for interior and 
exterior use — Specification  
 
 PUBLIC REVIEW DRAFTDUS DEAS 937: 2019  
ii                © UNBS  2019 - All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions o f a contract. Users are 
responsible for its correct application  
© UNBS 2019  
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocop ying and microfilm, without prior written 
permission from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: +256 41 7 333 2 50/1/2 
Fax: +256 41 286 123  
E-mail: info@unbs.go.ug  
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 PUBLIC REVIEW DRAFTDUS DEAS 937: 2019  
© UNBS  2019 - All rights reserved                 iii National foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade, Industry and 
Cooperatives established under Cap 3 27, of the Laws of Uganda, as amended.  UNBS is mandated to co -
ordinate the elaboration of standards and is  
(a) a member of International Organisatio n for Standardisation (ISO),  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT Agreement of the World Trade Organisation (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of representatives of 
consumers, traders, academicians, manufacturers, government and other stakeholders.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments.  The committee reviews the comments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
This Uganda Standard, US EAS 937: 2019 , Semi -gloss (egg shell) solvent borne paints for interior  and 
exterior use — Specification , is identical with and has been reproduced from an East African  Standard, EAS 
937: 2019 , Semi -gloss (egg shell) solvent borne paints for interior and exterior use — Specification , and 
adopted  as a Uganda Standard.  
The comm ittee responsible for this document is Technical Committee UNBS/TC 5 , Chemicals and 
Environment , Subcommittee SC 2 , Paints, varnishes and related products . 
Wherever the words, “ East African  Standard " appear, they should be replaced by "Uganda Standard."   DEAS 937: 2019  
ICS 87.040  
 
 
© EA C 2019                                                                                                                             First Edition 2019   
 DRAFT EAST AFRICAN STANDARD  
Semi-gloss (egg shell) solvent borne paints for interior and exterior use  
— Specification  
EAST AFRICAN COMMUNITY  DEAS 937:2019  
ii © EAC 2019  – All rights reserved  
 Copyright notice  
This EAC document is copyright -protected by EAC. While the reproduction of this document by 
participants in the EAC standards development process is permitted without prior permission from EAC, 
neither this document nor any extract from it may be reproduced, stored or transmitted in any form for 
any other purpose without prior written permission from EAC.  
Requests for permission to reproduce this document for the purpose of selling it should be addressed 
as shown below or to EAC’s member body in the country of the requester:  
© East African Community 2019  — All rights reserved  
East African Community   
P.O. Box 1096 , 
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Tanzania  
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Fax: + 255 27 2162190  
E-mail: eac@eachq.org  
       Web: www.eac -quality.net  
Reproduction for sales purposes may be subject to royalty payments or a licensing agreement. 
Violators may be pr osecuted . 
 DEAS 937:2019  
© EAC 2019  – All rights reserved  iii 
 Forewo rd 
Development of the East African Standards has been necessitated by the need for harmonizing requirements 
governing quality of products and services in the East African Community. It is envisaged that through 
harmonized standardization, trade barriers th at are encountered when goods and services are exchanged 
within the Community will be removed.  
The Community has established an East African Standards Committee  (EASC)  mandated to develop and 
issue East African Standards  (EAS) . The Committee is composed o f representatives of the National 
Standards Bodies in Partner States, together with the representatives from the public and private sector 
organizations  in the community .  
East African Standards are developed through  Technical Committees that are represent ative of key 
stakeholders including government, academia, consumer groups, private sector and other interested parties. 
Draft East African Standards are circulated to stakeholders through the National Standards Bodies in the 
Partner States. The comments re ceived are discussed and incorporated before finalization of standards, in 
accordance with the Principles and procedures for development of East African Standards.  
East African Standards are subject to review, to keep pace with technological advances. Use rs of the East 
African Standards are therefore expected to ensure that they always have the latest versions of the standards 
they are implementing .  
The committee responsible for this document is Technical Committee EASC/TC 070, Paints, varnishes and 
related products.   
Attention is drawn to the possibility that some of the elements of this document may be subject of patent 
rights. EAC shall not be held responsible for identifying any or all such patent rights.  
 DRAFT EAST AFRICAN STANDARD  DEAS 937:2019  
 
© EAC 2019  – All rights reserved  1 
 Semi -gloss (egg shell) solvent borne paints f or interior and exterior use  
— Specification  
1 Scope  
This Draft East African Standard specifies requirements, methods of sampling  and test for semi -gloss (egg -
shell) solvent borne paints for interior and exterior use. This standard does not apply to autom otive, road 
marking and Industrial applications.  
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 c ited applies. For undated references, 
the latest edition of the referenced document (including any amendments) applies.  
ISO 4618, Paints and varnishes — Terms and definitions  
ISO 6503 Paints and varnishes -- Determination of total lead — Flame atomic absor ption spectrometric 
method  
ISO 6504 -3, Paints and varnishes — Determination of hiding power — Part 3: Determination of contrast ratio 
of light coloured paints at a fixed spreading rate  
ISO 17132, Paints and varnishes — T-bend test  
ISO 3251, Paints varnishe s and plastics — Determination of non - volatile matter content  
ISO 1514 , Paints and varnishes — Standard panels for testing  
ISO 1518 -1, Paints and varnishes — Determination of scratch resistance — Part 1: Constant -loading method  
ISO 1524 , Paints, varnishes  and printing ink — Determination of fineness of grind  
ISO 15528 , Paints, varnishes and raw materials for paints and varnishes — Sampling  
ISO 3270,  Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and 
testing  
ISO 1514, Paints and varnishes — Standard panels for testing  
ISO 2884 -2, Paints and varnishes — Determination of viscosity using rotary viscometers — Part 2: Disc or ball 
viscometer operated at a specified speed  
ISO 3856 -6, Paints and varnishes — Determination of "soluble" metal content — Part 6: Determination of total 
chromium content of the liquid portion of the paint — Flam e atomic absorption spectrometric method  
ISO 9 117-1, Paints and varnishes — Drying tests — Part 1: Determination of through -dry state and through -
dry time  DEAS 937:2019  
2 © EAC 2019  – All rights reserved  
 ISO 2813,  Paints and varnishes — Determination of specular gloss of non -metallic paint films at 20°, 60° and 
85° 
ISO 6504 -3, Paints and varnishes — Determi nation of hiding power — Part 3: Determination of contrast ratio 
of light coloured paints at a fixed spreading rate  
ISO 16474 -1, Paints and varnishes — Methods of exposure to laboratory light sources — Part 1: General 
guidance  
ISO 16474 -2, Paints and varni shes — Methods of exposure to laboratory light sources — Part 2: Xenon -arc l  
ASTM D4828 -94, Standard test methods for practical washability of organic coatings  amps  
ISO 20566,  Paints and varnishes — Determination of the scratch resistance of a coating sys tem using a 
laboratory -scale car -wash  
ISO 4628 -10, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and 
size of defects, and of intensity of uniform changes in appearance — Part 10: Assessment of degree of filiform 
corrosion  
3 Terms and definitions  
For the purposes of this document , the definitions given in ISO 4618  apply:  
4 Requirements  
4.1 General requirements  
4.1.1  Condition in the container  
The paint shall show no evidence of; biological growth, corrosion of the c ontainer, livering or hard settlement, 
and shall be free from lumps, foreign material or surface skins that cannot be re -dissolved. Upon mixing the 
paint shall be returned to a smooth and homogeneous consistency, which is free from; gel structures, 
persist ent foam or air bubbles.  
4.1.2  Finish  
When two coats of paints are applied by brush to a test panel of burnished mild steel or tinplate test, the film, 
when dry, shall be of uniform colour and appearance and have a a semi -glossy finish (eggy shell) . 
4.2 Specific requirements   
The paint shall meet the requirements specified in Table 1.   
 
 
 
 
 DEAS 937:2019  
© EAC 2019  – All rights reserved  3 
 Table 1 — Specific requirements for semi -gloss (egg shell) solvent  borne paints for exterior and 
interior use  
5 Packaging  
Semi -gloss solvent  (egg shell)  borne paints  for interior and exterior use shall be packaged in a suitable 
container that prevents it from deterioration during storage, transportation and normal handling . S/N Characteristic  Requirement  Test method  
i.  Total l ead content,  ppm, 
max. 90 ISO 6503  
ii.  Solids content, %,m/m, 
min. 50 ISO 3251  
iii.  Skin formation   Shall show no skin formation  Annex A  
iv.  Viscosity,  pa.s 0.4 – 0.8 ISO 2884 -2 
v.  Gloss,%  Shall have specular gloss of not more than 45 per cent after drying 
for 16 hours , and tested using a 60° head gloss meter  ISO 2813  
vi.  Hiding Power, %, min . 
 90 ISO 6504 -3 
vii.  Fastness to l ight After 28 days of testing, there shall be no visible difference between 
the two panels.  
 ISO 16474 -2 
ISO 16474 -1 
viii.  Resistance to yellowing 
(Dark Ch amber) for white 
paints  The resistance to yellowing shall be not less than 8 by visual 
assessment.  
 ISO 4628 -10 
ix.  Washability  When two coats of paint are applied test panels and aged for 7 days  
and 500 cycles made, the change of gloss of the paint shall no t 
exceed 4 gloss units when t ested by a 60° head gloss meter  ISO 20566:  
x.  Fineness of dispersion,  
/Fineness of grind 
Hegman -Type Gage, µm, 
max. 10 ISO 1524  
xi.  Drying 
time at 
25 ˚C ± 
2 ˚C, h, 
max. Hard drying  24 ISO 9117 -1 
Surface drying  3 ISO 9117 -3 
xii.  Chromium, ppm in dried 
paints, max . 5 ISO 3856 -6 
xiii.  Brushing properties   The paint film, when dry, shall not show signs of sagging, running or 
streaking and shall be free from b rush marks  Annex B  
xiv.  Rolling properties  The paint shall show satisfactory rolling, spreading, leveling and 
lapping properties with no more than slight transient bubbling, 
dripping, clogging or fly -off paint from the roller.  
 Annex C  DEAS 937:2019  
4 © EAC 2019  – All rights reserved  
 6  Labelling  
6.1 Labelling of semi -gloss solvent  (egg shell)  borne paints  for interior and exterior use shall be either in 
English, Kiswahili or French or in combination as agreed between the manufacturer and  / or the supplier. Any 
other language is optional.  
6.2 Each container shall be legibly and indelibly marked  with the following information.  
a) the words “Semi -Gloss  (Eggshell)  Solvent borne paints ”; 
b) name and address of the manufacturer;  
c) net contents  in litres ; 
d) Colour and/or colour ; 
e) date of manufacture ; 
f) best before date ; 
g) colour of the paint ; 
h) instructions for use,  storage,  disposal and safety requirements; and  
i) batch number.  
8 Sampling  
Sampling shall be done in accordance with ISO 15528.  DEAS 937:2019  
© EAC 2019  – All rights reserved  5 
 Annex  A 
(normative)  
 
Examination of skin formation  
A.1  Apparat us 
 
The following apparatus  are required: 
A.1.1  Container, one metal  container of 250 ml with a tight fitting lid. 
A.1.2  Spatula  
A.2 Test conditions  
The test shall be carried out at a temperature of 23 ºC ± 2 ºC and a relative  humidity  of 65 ± 2 per cent. 
A.3  Procedure 
The procedure shall be as follows: 
A.3.1  Stir and pour 125 ml to 130 ml of the paint into the container, place the lid on tightly and 
momen tarily invert the container  to seal the lid. 
A.3.2  Allow the container to stand upright for 7 days. 
A.3.2  Open the container and test the surface of the paint with a spatula for any skin formatio n. 
Exami ne the walls and the lid for the presence of the skin.  DEAS 937:2019  
6 © EAC 2019  – All rights reserved  
 Annex  B 
(normative)  
 
Brushing properties test  
B.1  Apparat us 
 
The following apparatus  are required. 
B.1.1  Brush, a good quality pure bristle  brush for paint 4 cm to 6 cm wide  
B.1.2  Test panes , complying with ISO 1514 , burnished mild steel or tin-plate  panels placed vertically or 
nearly so and rigidly held (e.g. fixed to a solid backing) to prevent movement during testing.  
B.2  Test condition  
The test shall be carried out a temperature of 23 ± 2 ºC and a relative  humidity  of 65 ± 2 per cent. 
B.3 Procedure 
 
B.1 Wet the brush with the paint properly and apply the paint to the test panel by criss cross strokes across 
a section of the panel and then, where appropriate, lay off the coat with vertical stokes using the tip of the 
brush. 
B.2 Coat the next section in the same  manner and continue this procedure until three quarters of the panel 
is covered as evenly as practicable; noting the ease or difficulty of lapping until the whole panel is coated. 
B.3 During the appli cation,  note such prope rties as the brushing,  flowing, spread ing, levelling  and setting  
up of the paint. 
B.4 Allow  the  film  to  dry  for  24  h  and  examine  the  area  of  lapping  and  that  adjacent  for differences 
in gloss  and/or other defects. DEAS 937:2019  
© EAC 2019  – All rights reserved  7 
 Annex  C 
(normative)  
 
Rolling properties test  
C.1 Apparat us 
 
The following apparatus  are required: 
 
C.1.1  Roller  coater, of size 10 cm to 15 cm 
C.1.2   Commercial  roller  tray 
C.1.3  Test panel , burnished mild steel  or tinplate panels  complying with ISO 1514 placed  vertically or 
nearly  vertical ly and rigidly  held to prevent movement  during the test. 
 
C.2  Test conditions  
 
The test shall be carried out at a temperature of 23 ± 2 ºC and a relative  humidity  of 65 ± 2 per cent. 
 
C.3  Procedure 
 
The procedure shall be as follows: 
 
C.3.1  Satura te the roller with paint  using  the roller  tray. 
C.3.2  Remove  the excess  paint  by rolling on the subsidiary  panel.  
 C.3.3  Apply paint to section  of the test panel 
C.3.4  Continue steps C.3.1 to C.3.3  until three quarters of the panel is covered evenly.  Noting the ease 
or difficulty  of lapping until the whole panel is coated. Duri ng application, note such properties as rolling,  
flowing, spreading,  leveling,  bubbling,  dripping, logging  and fly-off. 
C.3.5  Allow the film to dry for 24 h and examine the area of lapping and that adjacent for differ ence in 
gloss and/or other defects.  DEAS 937:2019  
8 © EAC 2019  – All rights reserved  
 Bibliography  
[1] KS 909:1991 , Specification for semi -gloss solvent borne paints for interior and exterior use  
 
[2] TZ 726:2011  Semi -gloss solvent borne paints for interior and exterior use – Specification  
 
 
 
 DEAS 937:2019    
 
© EAC 2019  – All rights reserved