G/TBT/N/UGA/1478  
25 October 2021  
(21-8066) 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  
Website: 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 indicated if dif ferent 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):  
Lubricants; Prepared additives for oil lubricants containing petroleum oil or bituminous 
mineral oil (HS 381121); Lubricants, industrial oils and related products (ICS 75.100)  
5. Title, number of pages and language(s) of the notified document:  DUS 2377:2021, 
Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils, First Edition (15 
page(s), in English)  
6. Description of content:  This Draft Uganda Standard suggests physical, chemical, and 
toxicological test methods for characterizing hydrocarbon lubricant base oils derived from 
various refining processes including re -refining used oils and refining crude oil. This guide 
does not contai n limits nor does it purport to cover all tests which could be employed; 
rather, it represents the first step in better describing important parameters of lubricant 
base oils affecting lubricant performance and safe handling.  
This guide applies only to bas e oils and not to finished lubricants.  Base oils containing 
detectable levels of esters, animal fats, vegetable oils, or other materials used as, or 
blended into, lubricants are not covered by this guide.  This guide is relevant to base oils 
composed of hyd rocarbons and intended for use in formulating products including 
automotive and industrial lubricants. Although not intended to cover all base oil viscosity 
grades, this guide does cover the majority of viscosities that would be used in both 
automotive and  industrial oil formulations. These base oils would typically have a viscosity 
of approximately 2  mm2/s to 40 mm2/s (cSt) at 100  °C (50 SUS to 3740  SUS at 100  °F). G/TBT/N/UGA/1478  
 
- 2 - 
 
  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 D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester  
2. ASTM D93 Test Methods for Flash Point by Pensky -Martens Closed Cup Tester  
3. ASTM D97 Test Method for Pour Point of Petroleum Products  
4. ASTM D130 Test Method for Corrosiveness to Copper from Petroleum Products 
by Copper Strip Test  
5. ASTM D189 Test Method for Con radson Carbon Residue of Petroleum Products  
6. ASTM D287 Test Method for API Gravity of Crude Petroleum and Petroleum 
Products (Hydrometer Method)  
7. ASTM D341 Practice for Viscosity -Temperature Charts for Liquid Petroleum 
Products  
8. ASTM D445 Test Method for Kine matic Viscosity of Transparent and Opaque 
Liquids (and Calculation of Dynamic Viscosity)  
9. ASTM D524 Test Method for Ramsbottom Carbon Residue of Petroleum Products  
10. ASTM D664 Test Method for Acid Number of Petroleum Products by 
Potentiometric Titration  
11. ASTM D974 Test Method for Acid and Base Number by Color -Indicator Titration  
12. ASTM D1298 Test Method for Density, Relative Density, or API Gravity of Crude 
Petroleum and Liquid Petroleum Products by Hydrometer Method  
9. Proposed date of adoption:  January 2022  
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  
Website: https://www.unbs.go.ug