DRAFT UGANDA STANDARD  
  DUS 1799  
First Edition  
2017 -mm-dd 
 
 
 Reference number  
DUS 1799 : 2017 
© UNBS 2017   
  
Methylated spirit  — Specification  
 DUS 1799 : 2017  
ii © UNBS 2017  – 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 applic ation  
© UNBS 2017   
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 4 333 2 50/1/2/3  
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
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 DUS 1799 :2017  
© UNBS 2017  – All rights reserved  iii 
 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 Wo rld 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 key stakeholders 
including government , academia, consumer groups, private sector and other interested parties.  
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 recomm ending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
The committee responsible for this document is Technical Committee UNBS /TC 5, Chemicals and 
Environment.  
 DRAFT UGANDA STANDARD  DUS 1799 : 2017  
 
© UNBS 2017  – All rights reserved  1 
 Methylated Spirit  — specification  
1 Scope  
This draft Uganda standard specifies requirements, test and sampling methods for methylated spirit  as a 
finished product  suitable for general purpose disinfection and cleaning. This standard does not apply to 
industrial methylated spirits . 
2 Normative  references   
The following referenced documents 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 cited applies. For undated 
references, the latest edit ion of the referenced document (including any amendments) applies.  
FDUS ISO 24153, Random sampling and randomisation procedures  
US EAS 104, Alcoholic beverages — Methods of sampling and test  
US 1692, Determination of bactericidal efficacy of disinfectants/ sanitizers  
US ISO 7010, Graphical symbols safety colours and safety signs — Registered safety  
US 1751 Test Method for Determination of Ethanol and Methanol Content in Fuels Containing Greater than 
20% Ethanol by Gas Chromatography  
3 Terms and definitions   
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain 
terminological databases for use in standardization at the following addresses: — ISO Online browsing 
platform: available at http://www.iso.org/obp  
3.1 
cleaning  
removal of foreign materials from a surface  
3.2 
disinfection  
process that destroys, inactivates or removes microorganisms  
3.3 
Methylated spirit  
ethyl alcohol denatured with methyl alcohol or other denaturing agent s like wood naphtha, Isopropyl alcohol 
and pyridine for the purpose of preventing its use as an alcoholic beverage.  
3.4 
sedimentation  
separation of particles from the fluid in which they are suspended, by the action of gravity  DUS 1799: 2017  
2 © UNBS 2017  – All rights reserved  
 4 General requirements  
4.1 Appearance  
The product shall be clear , volatile  liquid  and free from sedimentation . It shall either be colourless or  coloured 
by addition of methyl violet   
4.2 Solubility  
Shall be with Miscible with water   
4.3 Odour  
The methylated spirit shall have a charac teristic odour.  
4.4 Weights and measures  
The fill and volume of the material shall comply with the requirements of the Weights and Measures Act.  
4.5 Safety  
The product  shall have no adverse effects on the human health and environment when it is used for it s 
intended purpose . 
4.6 Quality requirements  
The product  shall comply with the requirements given in table 1  
Table 1 — methylated spirit  — quality requirements  
Characteristic  Requirement  Test method  
Specific gravity at 20°C  0.8305 – 0.8869  US EAS 104 
Ethanol content at 20°C,% v/v min  70 US EAS 104 / US 1751  
Acidity ( as acetic acid),  percent by weight , max 0.01 US EAS 104 
Aldehydes (as acetaldehyde):  g/l, max  1.00 US EAS 104 
Non – volatile matter, % w/w max  0.1 Annex A 
Methanol content , % w/v , max 2 US EAS 104  
Bactericidal efficacy  to pass test  US 1692   
4.7 Stability in storage  
The product shall not deteriorate in any manner and shall comply with the requirements of this specification 
when stored in its original sealed container for a period of two year from the date of manufacture.  
5 Packing and Labelling  
5.1 Packing  
The material in which the product is packaged shall not react chemically or interact physically  with the product 
and shall be strong enough to protect the product adequately during norm al handling, transportation and 
storage . DUS 1799 : 2017  
© UNBS 2017  – All rights reserved  3 
 5.2 Labelling  
5.2.1  Each container and each bulk package shall bear in prominent, legible, and indelible marking the 
information required in terms of the Weights and Measures Act, and the following additional inform ation:  
a) manufacturer's name and physical address;  
b) name of the product  “ methylated spirit” ; 
c) net mass of the product when packed;  
d) ethanol content  % by volume ; 
e) instructions for use;  
f) warning/ precautions;  
g) country of origin;  
h) storage recom mendation;  
i) batch number;  
j) month and year  of manufacture and  
k) month and year of expiry.  
5.2.2  Each package shall be marked with appropriate safety symbols as specified in US ISO 7010  
6 Sampling  
Samples shall be taken randomly and tested for complianc e with the requirements of the standard.in 
accordance with FDUS ISO 24153 . DUS 1799: 2017  
4 © UNBS 2017  – All rights reserved  
 Annex A 
(normative)  
 
Non- volatile matter  
A.1 Apparatus  
A.1.1  Water bath  
A.1.2  Oven  
A.1.3  Analytical balance  
A.1.4  Desiccator  
A.1.5  Evaporation dish  
A.2 Procedure  
A.2.1  Evaporate 50  ml of sample in a dried tared dish on the water bath in a well ventilated hood and wipe  
the external sides of the dish  
A.2.2  Place the dish with the residue in the oven maintained at 105 °C  ± 1°C for 1 h. Cool the dish in a 
desiccator and weigh the dish. Repeat until a constant is obtained   
A.3 Calculation  
Non- volatile matter, % w/v = 
VW W1  
Where;  
W1 weight of evaporating dish with dry residue in grams,  
W weight of evaporating dish in grams,  
V volume of sample taken in millilitres  DUS 1799 : 2017  
© UNBS 2017  – All rights reserved  5 
 Biblio graphy  
[1] Indian Standard 323 of 1959  — Specification for rectified spirit  
[2] Kenya Methylated Spirit  07/07/2017  
[3] Pharmacopoeia of India, Third Edition , 1985  
[4] US EAS 109:1987, Potable spirit — Specification  
 DUS 1799 : 2017  
© UNBS 2017  – All rights reserved  7 
 Certification marking  
Products that con form to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. This mark ca n be used only by those licensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assuranc e that the goods comply with the 
requirements of that standard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually checked by U NBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 DUS 1799 : 2017    
 
ICS 71.080.60 , 11.080.20  
Price based on nn pages  
© UNBS 2017 – All rights reserved