DRAFT UGANDA STANDARD DRAFT UGANDA STANDARD  
  DUS EAS 853-2 
First  Edition  
2015-mm-dd 
 
 Reference number  
DUS EAS 853-2: 2015 
© UNBS 201 5 
  
Auto refinishing paint — Specification — Part 2: Nitrocellulose 
resin based  
 DRAFT UGANDA STANDARDDUS EAS 853-2: 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 
Uganda National Bureau of Standards 
P.O. Box 6329 
Kampala 
Uganda 
Tel: 256 41 505 995 
Fax: 256 41 286 123 
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  
 DRAFT UGANDA STANDARDDUS EAS 853-2: 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 853-2: 2015 , Auto refinishing paint — Specification — Part 2: 
Nitrocellulose resin based , is identical with  and has been reproduced from an East African  Standard, EAS 
853-2: 2015, Auto refinishing paint — Specification — Part 2: Nitrocellulose resin based , 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 853-2: 2015 
ICS 87.040  
© EAC 2015                                                                                                                              First Edition 2015  
 
FINAL DRAFT EAST AFRICAN STANDARD 
 
Auto refinishing paint — Specification — Part 2 : Nitrocellulose resin 
based 
EAST AFRICAN COMMUNITY  DRAFT UGANDA STANDARDFDEAS 853-2 : 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 
East African Community  
P.O.Box 1096 
Arusha 
Tanzania 
Tel: 255 27 2504253/8 
Fax: 255 27 2504481/2504255 
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 persecuted 
 
 DRAFT UGANDA STANDARDFDEAS 853-2: 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 853-2 was prepared by Technical Committee EASC/TC 07 0, Paints, varnishes and related products . 
FDEAS 853 consists of the following parts, under the general title Auto refinishing paint — Specification —: 
 Part 1: Synthetic resin based  
 Part 2: Nitrocellulose resin based 
 DRAFT UGANDA STANDARDDRAFT UGANDA STANDARDFINAL DRAFT EAST AFRICAN STANDARD  FDEAS 853-2: 2015  
 
© EAC 2015  – All rights reserved  1 
 Auto refinishing paint — Specification — Part 2 : Nitrocellulose resin 
based 
1 Scope 
This Final Draft East African Standard specifies the requirements, sampling and test methods for auto 
refinishing paint , nitrocellulose  resin based. 
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. 
ISO 2810, Paints and varnishes — Natural weathering of coatings — Exposure and assessment  
ISO 2813, Paints and varnishes — Determination of gloss value at 20 degrees, 60 degrees and 85 degrees  
ISO 3248, Paints and varnishes — Determination of the effect of heat  
ISO 3251, Paints varnishes and  plastics — Determination of non - volatil e matter content  
ISO 3856-1, Paints and varnishes — Determination of “soluble“ metal content —  Part 1: Determination of lead 
content — Flame atomic absorption spectrometric method and dithizone spectrophotometric 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 9117- 3, Paints and varnishes — Drying test — Part 3: Surface drying test using Ballotini 
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests  
ISO 15184, Paints and varnishes - — Determination of film hardness by pencil test  
ISO 15528,  Paints, varnishes and raw materials for paints and varnishes — Sampling  
ISO 21207, Corrosion test in artificial atmospheres — Accelerated corrosion test involving alternate exposure 
to corrosion promoting gases, neutral salt spray and drying 
3 Requirements 
3.1 General requirements  
3.1.1  The paint shall be made of nitrocellulose resin blended with a suitable plasticizer. 
3.1.2  The paint shall be made of light and solvent fast pigments. DRAFT UGANDA STANDARDFDEAS 853-2 : 2015  
2 © EAC  2015  – All rights reserved  
 3.1.3  The manufacturer shall recommend thinners to be used for thinning the paint. 
3.2 Specific requirements 
3.2.1  Skinning 
When tested in accordance with Annex A, the paint shall show no sign of skinning. 
3.2.2 Recoating properties 
When tested in accordance with Annex B, the paint shall not show any signs  of lifting of the underlying coat  
after 1 h.  
3.2.3  Resistance to neutral salt spray  
When tested in accordance with ISO 9227 the paint shall show no evidence  of blistering staining, loss of 
adhesion or creep of corrosion on panels. 
3.2.4  Diesel and gasoline 
When tested in accordance with Annex C, there shall be no reduction in gloss level, colour change, production 
of swelling or softening of the paint film. 
3.2.5  Accelerated weathering  
When tested in accordance with ISO 21207, there shall be no evidence of blistering, staining, loss  of adhesion 
or creep corrosion on panels. 
3.2.6  Weather resistance  
When tested in accordance with ISO 2810, the paint shall show good weathering resistance for a minimum of 
2 years when the panel shall have been placed on an exposed testing rack at an angle of 2°. 
3.2.7  Additional specific requirements 
The paint shall comply with the requirements given in  Table 1, when tested in accordance with the test 
methods therein. DRAFT UGANDA STANDARDFDEAS 853-2: 2015 
© EAC 2015  – All rights reserved  3 
 Table 1 — Specific requirements for auto refinishing paints, nitrocellulose resin based 
S No.  Parameter  Requirement  Test method  
I Viscosity, Pa. s  4 - 6 ISO 2884  
Ii Solids content %, m/m, min.  38 ISO 3251  
Iii Drying times at 25 ºC ± 2 ºC, 
minutes , max : 
 Surface drying time  
 Hard drying time   
15 
60 ISO 9117 -3 
Iv Gloss at 60°, %, min.  80 ISO 2813  
V Hardness, min.  1H ISO 15184  
4 Storage stability 
The p aint when stored in the orig inal sealed container under room temper ature 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 paint 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 paint shall be packaged in containers that are legibly and indelibly marked with the following 
information: 
a) the name of the produ ct shall appear as “ Auto refinishing paint, synthetic resin based ”; 
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) country of origin; DRAFT UGANDA STANDARDFDEAS 853-2 : 2015  
4 © EAC  2015  – All rights reserved  
 h) expiry date or best before date;  and 
i) instructions for use and safety.  
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 853-2: 2015 
© EAC 2015  – All rights reserved  5 
 Annex A 
(normative) 
 
Skin formation  
A.1 Apparatus 
A.1.1 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 25 º C ± 2 º C and a relative humidity of 6 5 % ± 2. 
A.3 Procedure 
A.3.1  Stir and pour 125 mL - 130 mL of the paint into the container. Place the lid on tightly and momentarily 
invert to seal the lid. 
A.3.2  Allow the container to stand upright for 14 days. 
A.3.3  Open the container and test the surface of the paint for any skin formation using a spatula.  Examine 
the walls and the lid for the presence of the skin. DRAFT UGANDA STANDARDFDEAS 853-2 : 2015  
6 © EAC  2015  – All rights reserved  
 Annex B 
(normative) 
 
Determination of recoatability 
B.1 Apparatus 
B.1.1 Burnished mild steel panel , flat sheets of size 150 mm x 100 mm x 4 mm 
B.1.2 Film applicator , capable of applying a wet film thickness of 60- µm 
B.1.3 Glass stirrer , long enough to stir the paint without dipping the hands into the paint 
B.2 Procedure 
Thoroughly stir the paint and apply one coat onto a dry panel, and leave to dry for 6 h at room temperature.  
Apply a second coat and examine for recoating properties after drying for 24 h. 
 DRAFT UGANDA STANDARDFDEAS 853-2: 2015 
© EAC 2015  – All rights reserved  7 
 Annex C 
(normative)  
 
Diesel and gasoline resistance test 
C.1 Apparatus 
C.1.1 Burette 
C.1.2 Stand 
C.1.3 Ultra violet lamp 125 
C.1.4 Timing device 
C.1.5 Glossmeter 
C.2 Procedure 
C.2.1 The diesel and gasoline resistance test is done by allowing 200 mL of the fuel to drop from a burette 
at a rate of 10 drops/minute from a height of 10 cm onto the test panel held at an angle of 20º from the 
horizontal plane.   
C.2.2  The test panel is illuminated with a u.v. light at a 90º angle during this test for a period of 2 ½ h.  
There shall be no change in gloss, colour, swelling or softening of the paint film. DRAFT UGANDA STANDARDFDEAS 853-2 : 2015  
8 © EAC  2015  – All rights reserved  
 Bibliograp hy 
KS 1027-2:2012, Auto refinishing paints — Specification Part 2: Nitrocellulose resin based 
 DRAFT UGANDA STANDARDFDEAS 853-2: 2015    
 
© EAC 2015 – All rights reserved