DRAFT UGANDA STANDARD DRAFT UGANDA STANDARD  
  DUS EAS 855 
First  Edition  
2015-mm-dd 
 
 Reference number  
DUS EAS 855: 2015 
© UNBS 201 5 
  
Thinner for resin-based auto-refinishing paints — Specification  
 DRAFT UGANDA STANDARDDUS EAS 855: 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 
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Requests for permission to reproduce this document should be addressed to 
The Executive Director 
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Uganda 
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 DRAFT UGANDA STANDARDDUS EAS 855: 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 855: 2015 , Thinner for synthetic resin-based auto-refinishing paints — 
Specification , is identical with  and has been reproduced from an East African  Standard , EAS 855: 2015, 
Thinner for synthetic 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 855: 2015 
ICS 87.040  
© EAC 2015                                                                                                                              First Edition 2015 
 
FINAL DRAFT EAST AFRICAN STANDARD 
 
Thinner for synthetic resin-based auto-refinishing paints — Specification 
EAST AFRICAN COMMUNITY  DRAFT UGANDA STANDARDFDEAS 855: 2015  
ii © EAC  2015  – 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 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 855: 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 855 was prepared by Technical Committee EASC/TC 070, Paints, vanishes and related products . 
 DRAFT UGANDA STANDARDDRAFT UGANDA STANDARDFINAL DRAFT EAST AFRICAN STANDARD  FDEAS 855: 2015  
 
© EAC 2015  – All rights reserved  1 
 Thinner for synthetic resin-based auto-refinishing paints — Specification 
1 Scope 
This Final Draft East African Standard specifies requirements, sampling and test methods for  thinners for 
synthetic resin-based auto refinishing paints.  
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 1613, Standard test method for acidity in volatile solvents and chemical intermediates used in paints, 
varnish, lacquer and related products  
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 paints  
ISO 15528,  Paints, varnishes and raw materials for paints and varnishes — Sampling  
ISO 16000-28, Indoor air — P art 28, Determination of odour emissions from building products using test 
chambers  
3 Requirements 
3.1 General requirements 
The thinner shall consist of organic liquids and when visually examined shall be clear and free from sediment 
and suspended matter. 
3.2 Specific requirements  
3.2.1  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 2Cr2O7 in 1 L of water. 
3.2.2  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. DRAFT UGANDA STANDARDFDEAS 855: 2015  
2 © EAC  2015  – All rights reserved  
 3.2.3  Spot test 
When one to three drops of the thinner are applied on a Whatman filter paper No. 42, the thinner shall have 
completely evaporated, without leaving a stain, when visually examined after 1 h.  
3.2.4  Other quality requirements 
The nitrocellulose thinner shall comply with the requirements given in Table 1 when tested in accordance with 
the test methods therein. 
Table 1 — Specific requirements for thinners for synthetic resin-based auto-refinishing paints  
 
S No.  Parameter  Requirement  Test method  
(i)  Relative density at 20 ºC, min.  0.780  ISO 2811  
(ii)  Acidity (%), max.  0.005  ASTM D 1613  
(iii)  Distillation, ºC: 
 Initial boiling point, min.  
 Dry point, max.   
110 
198 ASTM D 8 6 
(iv)  Residue on evaporation mg/100 
mL, max.  5 ASTM D 86  
(v)  Flash point, °C, min.  24 ISO 1523  
 
4 Storage stability 
The thinner when stored in the orig inal sealed container under room t emperature shall meet all the 
requirements for a period of o ne year from the date of manufactu re. 
5 Weights and measures  
The fill and volume of the paint shall comply with Weights and Measures regulations of the respective Partner 
State s. 
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 
6.2.1 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. 
6.2.2 The thinners shall be packaged in containers that are legibly and indelibly marked with the following 
information: 
a) the name of the product shall appear as “ Thinner for synthetic resin based auto refinishing paint ”; DRAFT UGANDA STANDARDFDEA S 855: 2015 
© EAC 2015  – All rights reserved  3 
 b) manufacturer ’s name and/or registered trade mark; 
c) indication of colour/colour code; 
d) date of manufacture; 
e) net content; 
f) batch/code number; 
g) cautionary statement/symbols with the words : “Inflammable liquid” ; 
h) country of origin; 
i) expiry date or best before date; and  
j) instructions for use, storage and disposal.  
7 Sampling 
Sampling shall be done in accordance with ISO 15528. 
8 Quality of reagents 
Analytical grade reagents and distilled water or deionized water of equivalent purity shall be used for the 
appropriate tests. DRAFT UGANDA STANDARDFDEAS 855: 2015  
4 © EAC  2015  – All rights reserved  
 Bibliography 
KS 1717:2003, Thinner for synthetic resin-based auto-refinishing paints — Specification 
 DRAFT UGANDA STANDARDFDEAS 855: 2015    
 
© EAC 2015 – All rights reserved