G/TBT/N/UGA/1432  
22 September 2021  
(21-7068) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  UGANDA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:   
Uganda National Bureau of Standards  
Plot 2 -12 ByPass Link, Bweyogerere Industrial and Business Park  
P.O. Box 6329 Kampala, Uganda  
Tel: +(256) 4 1733 3250/1/2 Fax: +(256) 4 1428 6123  
E-mail: info@unbs.go.ug   
Websit e: https://www.unbs.go.ug  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indi cated if different from above:   
3. Notified under Article 2.9.2 [   ], 2.10.1 [   ], 5.6.2 [X], 5.7.1 [   ], other :  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Petroleum 
products; Petroleum oils and oils obtained from bituminous minerals (excl. crude); 
preparations containing >= 70% by weight of petroleum oils or of oils obtained from 
bituminous minerals, these oils being the basic constituents of th e preparations, n.e.s.; 
waste oils containing mainly petroleum or bituminous minerals (HS 2710); Petroleum 
products in general (ICS 75.080)  
5. Title, number of pages and language(s) of the notified document:  DUS 2352:2021, 
Standard Test Method for Acid an d Base Number by Color -Indicator Titration, First Edition 
(16 page(s), in English)  
6. Description of content:  This Draft Uganda Standard covers the determination of acidic 
or basic constituents in petroleum products and lubricants soluble or nearly solubl e in 
mixtures of toluene and isopropyl alcohol. It is applicable for the determination of acids 
or bases whose dissociation constants in water are larger than 10−9; extremely weak 
acids or bases whose dissociation constants are smaller than 10−9 do not int erfere. Salts 
react if their hydrolysis constants are larger than 10−9.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Prevention of deceptive practices and consumer protection; Quality 
requirements  
8. Relevant documents:   
1. ASTM D117 Guide for Sampling, Test Methods, and Specifications for Electrical 
Insulating Liquids  G/TBT/N/UGA/1432  
 
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  2. ASTM D664 Test Method for Acid Number of Petroleum Products by 
Potentiometric Titration  
3. ASTM D1193 Specification for Reagent Water  
4. ASTM D4 175 Terminology Relating to Petroleum Products, Liquid Fuels, and 
Lubricants  
5. ASTM D4739 Test Method for Base Number Determination by Potentiometric 
Hydrochloric Acid Titration  
9. Proposed date of adoption:  December 2021  
Proposed date of entry into force:  Not applicable  
10. Final date for comments:  60 days from notification  
11. Texts available from:  National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
Uganda National Bureau of Standards  
Plot 2 -12 ByPass Link, Bweyogerere Industrial and Business Park  
P.O. Box 6329 Kampala, Uganda  
Tel: +(256) 4 1733 3250/1/2 Fax: +(256) 4 1428 6123  
E-mail: info@unbs.go.ug   
Websit e: https://www.unbs.go.ug