DEAS 853-2: 2023 
ICS 87.040  
 
© EA C 2023                                                                                                                          Second  Edition 2023 
 DRAFT EAST AFRICAN STANDARD  
Auto refinishing paint — Specification — Part 2: Nitrocellulose resin 
based  
EAST AFRICAN COMMUNITY  DEAS 853 -2: 2023 
ii © EAC  2023 – 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 proces s 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.  
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as shown below or to EAC’s member body in the country of the requester:  
© East African Community  2023 — All rights reserved  
East African Community   
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Tanzania  
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Reproduction for sales purposes may be subject to royalty payments or a licensing agreement.  
Violators may be prosecuted . 
 DEAS 853 -2: 2023 
© EAC 2023 – 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 tha t through 
harmonized stan dardization, trade barriers that are encount ered when goods and services are exchanged 
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 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 de veloped through  Technical  Committees that are representative of key 
stakeholders including government, academia, consumer 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 cussed and incorporated before finalization of standards, 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 Standards are therefore expected to ensure 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 070, Paints, vanishes and 
related products . 
EAS 853 consists of the following parts, under the general title Auto refinishing paint — Specification;  
―  Part 1: Synthetic resin based   
―  Part 2: Nitrocellulose resin based  
This second  edition cancels and replaces the first edition (EAS 853-2:2016), which h as been technically 
revised.  
Attention is drawn to the possibility that some of the elements of this document may  be subj ect of patent 
rights. EAC shall not be held responsi ble for identifying any or all such patent rights . 
  DRAF T EAST AFRICAN STANDARD  DEAS 853 -2: 2023 
 
© EAC 2023 – All rights reserved  1 
 Auto refinishing paint — Specification — Part 2: Nitrocellulose 
resin based  
1 Scope   
This Draft East African Standard specifies the requirements, sam pling and test methods for nitrocellulose 
resin -based  auto refinishing paint . 
2 Normative references   
The following documents are referr ed to in the text in s uch a way t hat some or  all of their content constitutes 
requirements of this  document. For dated  references, only the edition cited applies. For undated references, 
the latest edition of the referenced d ocument (in cluding any amendmen ts) applies.  
ISO 2810, Paints and varnishes — Natu ral 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 o f the effect of heat   
ISO 3251, Paints varni shes a nd plastics — Determination of non - volatile matter content   
ISO 385 6-1, Paints and varnishes — Determination of “soluble“ metal  content — Part 1: Determination of 
lead conten t — Flame atomic absorption spe ctrometric method and dithizone spectrophoto metric  method   
ISO 6504 -3, Paints and varnishes — Determination of hiding power — Part 3 Determination of contrast 
ratio of light colo ured paints at a fixed spreading rate  
ISO 9117 -3, Paints and varnishes — Drying test — Part 3: Surface drying test using Ballot ini  
ISO 9227, Corrosion tests in artificial atmospheres — Salt spra y tests   
ISO 15184, Paints and varnishes -— Determination of  film hardness by pencil test   
ISO 15528,  Paint s, varnishes and raw materials for paints and varnishes — Sampling   
ISO 212 07, Corrosion test in artificial atmospheres — Accelerated corrosion test involving alternate exposure 
to corrosion promoting gases, n eutral salt spray and drying  
ISO 4618 , Paints and varnishes — Terms and defini tions 
ISO 6503 , Paints and Varnishes — Determination of Tot al Lead — Flame Atomic Absorption Spectrometric 
Method  
ISO 6503 , Paints and Varnishes — Determinatio n of Tot al Lead — Flame Atomic Absorption Spectrometric 
Metho d 
ISO 9117 -4, Paints and varnishes — Drying tests — Part 4: Test using a mechanical recorder  DEAS 853 -2: 2023 
2 © EAC  2023 – All rights reserved  
 3 Terms and defin itions   
For the purposes of thi s standard, terms and definitions given in ISO 4618 shall apply.  
 ISO and IEC mainta in ter minological databases for use in s tandardization at  the following addresses:  
— ISO Online browsing platform: available at http://ww w.iso.org/obp   
4 Requirements  
4.1 General requirements  
4.1.1 The paint shall be made of nitrocellulose resin blended with a suitable plasticizer.  
4.1.2 The paint sha ll be made of light and solvent fast pigments.  
4.1.3 The paint sha ll be thinned using a suitable thinner that complies with the DEAS 854.  
4.1.4  The paint  shall be free from gel, coarse particles, foreign matter and skin; and shall be i n such a 
condition that at the time of use by stirring, produces a homogenous product  of uniform consistency  
4.2 Specific requirements  
The nitrocellulose resin -based  auto refinishing  paint shall comply wi th the requirements gi ven in  Table 1, when 
tested i n accordance with the test methods therein . 
Table 1 — Specific requirements for nitroc ellulose resin based auto refinishing paints .  
S No.  Parameter  Requiremen t  Test method  
 Visco sity, Pa. s  4 - 6 ISO 2884  
 Solids content , %m/m, min.  38  ISO 3251  
 Skinning  To pass the test  Annex A  
 Recoating properties  To pass the test  Annex B 
 Resistance to neutral s alt spray  To pass the test  ISO 9227  
 Diesel and gasol ine To pass the test  Annex C  
 Accelerated weat hering   To pass the test  ISO 21207  
 Weath er resistance  To pass the test  ISO 2810  
 Drying times at 25 ºC ± 2 ºC, 
minutes, max:  
Surface drying time   
Hard drying time    
15 
60 ISO 9117 -3  
ISO 9117 -4 
 Gloss at 60°, %, min.  80 ISO 2813  
 Hardness, m in.  1H ISO 15184  
 Total lead content, ppm, m ax. 90 ISO 6503  DEAS 853 -2: 2023 
© EAC 2023 – All rights reserved  3 
  
5 Storage stability  
The nitrocellulose resin -based  auto refinishing paint when  stored in the original  sealed container under room 
temperature shall meet all the requirements for a period of  at leas t one year from the da te of manufacture.     
6 Packaging  
The nitrocellulose resin -based  Auto refinishing paint shall be packaged  in a suitable container that prevents it 
from deterioratio n during storage, transpor tation and normal handling  
7 Labell ing  
7.2.1 The labelling shall be either in Engl ish, Kiswahili or French or in combination as agreed between the 
manufact urer and the su pplier. Any other language shall be optional .  
7.2.2 The nitrocellulos e resin based  Auto refinishing paint shall be pack aged in containers that are legibly 
and indelibl y marked with the following information: the name of the product as “ nitrocellulose resin based  
Auto refinishing paint .  
a) manufacturer’s name and physical addresses and/or registered trade mark;  
b) indication o f colour /colour code;  
c) date of manufacture;  
d) net content;  
e) batch/code  number;  
f) country of origin;  
g) expiry date or best before date;  
h) instructions for use and safet y precautions ; 
i) storage conditions ; and 
j) Disposal instructions . 
8 Sampling  
Sampling shall be d one in a ccordance with ISO 15528.  DEAS 853 -2: 2023 
4 © EAC  2023 – All rights reserved  
 Annex  A 
(norm ative)  
 
Skin formation  
A.1 Appa ratus  
A.1.1  Conta iner, of 250 mL with a tight -fitting lid  
A.1.2  Spatula  
A.2 Test conditions  
The test shall be carried out at a tem perature of 25 °C ± 2 °C and a relative  humidity of 65 % ± 2  %.  
A.3 Procedure  
A.3.1  Stir a nd pour 125 ml - 130 m l of the paint into the co ntainer. Place the lid on tightly and momentarily 
invert to seal the lid.  
A.3.2 Allow the container to stand upri ght for 14 days.  
A.3.3  Open the containe r and test th e surface of the paint for any skin form ation using a spatula.  Examine 
the walls and t he lid for the presence of the skin.  
A.4 Results  
The paint shall show no  sign of skinnin g. DEAS 853 -2: 2023 
© EAC 2023 – All rights reserved  5 
 Annex  B 
(normative)  
 
Determination of recoatability  
B.1 Apparatus  
B.1.1 Burnished mild steel panel , flat sheets of s ize 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 Proced ure  
Thoroug hly stir the paint  and apply one coa t onto a dry panel, and leave to dry for 6 h at room temperature.  
Apply a second coat and examine f or recoating properties after drying for 24 h.  
B.3 Results  
The paint shall not show any signs  of lifting of  the underly ing coat after 1 h.  DEAS 853 -2: 2023 
6 © EAC  2023 – All rights reserved  
 Annex  C 
(normative)  
 
Diesel and gasoline resistance test  
C.1 Appar atus  
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 gas oline resistance  test is don e by allowing 200 m  of the fuel to drop from a burette at 
a rate of 10 drops/minute fr om a height of 10 cm on to the test panel held at an angle of 20º from the horizontal 
plane.    
C.2.2  The test panel is i lluminated with a u.v . light at a 90º angle during  this test for a period of 2 ½ h.   
C.2.3 There shall be no change in gloss, colour, s welling or softening of  the paint film.  
C.3 Results  
There shall be no reducti on in gloss level, colour change, production of swelling or sof tening of the pa int film.  DEAS 853 -2: 2023 
© EAC 2023 – All rights reserved  7 
 Bibliography  
EAS 853 -2:2015 Auto refinishin g paint — Specification — Part 2: Nitrocellulose resin based  
 EAS 853 -2: 2023   
 
© EAC 2023 – All rights  reserve d