DRAFT UGANDA STANDARD DRAFT UGANDA STANDARD  
  DUS EAS 857 
First  Edition  
2015-mm-dd 
 
 Reference number  
DUS EAS 857: 2015 
© UNBS 201 5 
  
Thinner for acrylic resin based auto-refinishing paints — 
Specification  
 DRAFT UGANDA STANDARDDUS EAS 857: 2015 
ii                © UNBS 2015 - 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 of a contract. Users are 
responsible for its correct application  
© UNBS 2015 
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 photocopying and microfilm, without prior written 
permission from UNBS. 
Requests for permission to reproduce this document should be addressed to 
The Executive Director 
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Uganda 
Tel: 256 41 505 995 
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 DRAFT UGANDA STANDARDDUS EAS 857: 2015 
© UNBS  2015 - 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 327, of the Laws of Uganda, as amended.  UNBS is mandated to co-
ordinate the elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(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 Draft Uganda Standard, DUS EAS 857: 2015, Thinner for acrylic resin based auto-refinishing paints — 
Specification , is identical with  and has been reproduced from an East African  Standard , EAS 857: 2015, 
Thinner for acrylic resin based auto -refinishing  paints — Specification , and is being proposed for adoption  as 
a Uganda Standard.  
Wherever the words, “ East African Standard" appear, they should be replaced by "Uganda Standard." 
 
  DRAFT UGANDA STANDARD FDEAS 857: 2015 
ICS 87.040  
© EAC 2 015                                                                                                                              First Edition 2015  
 
FINAL DRAFT EAST AFRICAN STANDARD 
 
Thinner for acrylic resin based auto-refinishing paints — Specification 
EAST AFRICAN COMMUNITY  DRAFT UGANDA STANDARDFDEAS 857: 2015  
ii © EAC  2015  – All rights reserved  
 Copyright notice 
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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 
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as shown below or to EAC’s member body in the country of the requester:  
© East African Community 2015  — All rights reserved 
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Reproduction for sales purposes may be subject to royalty payments or a licensing agreement. 
Violators may be persecuted DRAFT UGANDA STANDARDFDEA S 857: 2015 
© EAC 2015  – All rights reserved  iii 
 Foreword 
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 that are encountered when goods and services are exchanged 
within the Community will be removed.  
In order to achieve this objective, the Community established an East African Standards Committee mandated 
to develop and issue East African Standards.   
The Committee is composed of representatives of the National Standards Bodies in Partner States, together 
with the representatives from the private sectors and consumer organizations. Draft East African Standards 
are circulated to stakeholders through the National Standards Bodies in the Partner States. The comments 
received are discussed and incorporated before finalization of standards, in accordance with the procedures 
of the Community. 
East African Standards are subject to review, to keep pace with technological advances. Users of the East 
African Standards are therefore expected to ensure that they always have the latest versions of the standards 
they are implementing .  
FDEAS 857 was prepared by Technical Committee EASC/TC 0 70, Paints, varnishes and related products . 
 DRAFT UGANDA STANDARDDRAFT UGANDA STANDARDFINAL DRAFT EAST AFRICAN STANDARD  FDEAS 857: 2015  
 
© EAC 2015  – All rights reserved  1 
 Thinner for acrylic resin based auto-refinishing paints — Specification  
1 Scope 
This Final Draft East African Standard specifies requirements, sampling and test methods for thinner for 
acrylic resin based auto-refinishing paint s. 
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. 
ASTM D 86, Standard test method for distillation of petroleum products at atmospheric pressure   
ASTM D 130-12, standard test method for corrosiveness to copper from petroleum products by copper strip 
test 
ASTM D 5769- 10, Standard Test Method for Determination of Benzene, Toluene, and Total Aromatics in 
Finished Gasolines by Gas Chromatography/Mass Spectrometry  
ASTM D 5580-13, Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m-
Xylene, o-Xylene, C9 and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas 
Chromatography 
ISO 1523, Determination of flash point — Closed cup equilibrium method  
ISO 2811, (all parts), Paints and varnishes — Determination of density   
ISO 3668, Paints and varnishes — Visual comparison of the colour of the paints  
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling  
ISO 16000-28, Indoor air — Part 28, Determination of odour emissions from building products using test 
chambers 
3 Requirements 
3.1 General requirements 
3.1.1  Composition 
The thinner shall consist of organic liquids only, and shall be clear and free from sediments and suspended 
matter. DRAFT UGANDA STANDARDFDEAS 857: 2015  
2 © EAC  2015  – All rights reserved  
 3.1.2 Compatibility 
3.1.2.1  When the paint based on acrylic resin is thinned in the ratio of 1:4 with the thinner, the mixed 
material shall be smooth and uniform.  
3.1.2.2  It shall not show the tendency of breakdown, coagulation or precipitation of the paint. 
3.2 Specific requirements 
3.2.1 Toxicity 
When tested in accordance with ASTM D5580 and ASTM D 5769, the thinner shall be free from toxic solvents 
like benzene and chlorinated hydrocarbons. 
3.2.2 Colour 
When tested in accordance with ISO 3668, the colour of the thinner shall not be darker than a freshly 
prepared solution of 0.003 g K 2Cr207 in 1 L of water 
3.2.3  Odour 
When tested in accordance with ISO 16000-28, the thinner shall not emit appreciable residual odour after 
drying on Whatman filter paper No. 42 after 1 h. 
3.2.4  Spot test 
When 1 to 3 drops of the thinner are applied on a Whatman filter paper No. 42, the thinner shall hav e 
completely evaporated, without leaving a stain, when visually examined after 1 h. 
3.2.5  Additional specific requirements 
The thinner shall comply with the requirements given in Table 1 when tested in accordance with the test 
methods therein 
Table 1 — Requirements for thinner for acrylic resin based auto-refinishing paint 
S/No.  Characteristic  Requirement  Test method  
i) Relative density 20 ˚C, min 0.850  ISO 2811  
ii) Distillation , ˚C: 
 Initial boiling point , min.  
 Dry point , max.   
120 
180  
ASTM D  86 
iii) Residues on evaporation, mg/100 mL, max.  5 ASTM D  86 
iv) Copper corrosion  1 B ASTM D  130-12 
v) Flash point ˚C, min.  24.0 ISO 1523  
  
4 Storage stability 
The thinner, when stored in the orig inal sealed container under room temperature shall meet all the 
requirements for a period of o ne year from the date of manufactu re. DRAFT UGANDA STANDARDFDEA S 857: 2015 
© EAC 2015  – All rights reserved  3 
 5 Weights and measures 
The fill and volume of the thinner , shall comply with Weights and Measures  regulations of the respective 
Partner State.  
6  Packaging, labelling and marking 
6.1 Packaging 
The thinner shall be packaged in a suitable container that prevents it from deterioration during storage, 
transportation and normal handling 
6.2 Labelling and marking  
The labelling shall be either in English, Kiswahili or French or in combination as agreed between the 
manufacturer and the supplier. Any other language shall be optional. 
The thinner shall be packaged in containers that are legibly and indelibly marked with the following 
information: 
a) the name of the product shall appear as “ Acrylic thinner f or auto - refinishing paint”;  
b) manufacturer ’s name and/or registered trademark; 
c) date of manufacture; 
d) net content; 
e) batch/code number ; 
f) cautionary statement/symbols with the words : “Inflammable liquid”;  
g) country of origin; 
h) expiry date or best before date; and  
i) instructions for use, storage and disposal. 
7 Sampling 
Sampling shall be done in accordance with ISO 15528. DRAFT UGANDA STANDARDFDEAS 857: 2015  
4 © EAC  2015  – All rights reserved  
 Bibliography 
KS 1719:2003, Thinner for acrylic resin based auto-refinishing paint — Specification
 DRAFT UGANDA STANDARDFDEAS 857: 2015    
 
© EAC 2015 – All rights reserved