  
  
G/TBT/N/UGA/1638  
1 July 2022  
(22-5106) 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 different from above:   
3. Notified under Article 2.9.2 [  ], 2.10.1 [  ], 5.6.2 [X], 5.7.1 [  ], 3.2 [  ], 7.2 [  ], 
other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Petroleum 
gases and other gaseous hydrocarbons. (HS code(s): 2711); Gaseous fuels (ICS code(s): 
75.160.30 ), Gaseous Fuel  
5. Title, number of pages and language(s) of the notified document:  DUS 2521:2022, 
Standard Test Method for Measurement of Volatile Silicon -Containing Compounds in a 
Gaseous Fuel Sample Using Gas Chromatography with Spectroscopic Detection , First 
Edition; (21 page(s), in English)  
6. Description of content:  This Draft Uganda Standard is primarily for gas -phase siloxane 
compounds present in biogas and other gaseous fuel samples at ppmv and high ppbv 
concentrations. It may also be applicable to low ppbv concentrations under certain 
circumstances.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Prevention of deceptive practices and consumer protection; Quality 
requirements  G/TBT/N/UGA/1638  
 
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  8. Relevant documents:   
1. ASTM D4150  
2. Compendium Method TO -15 Determination of Volatile Organic Compounds 
(VOCs) in Air Collected in Specially -Prepared Canisters and Analyzed by Gas 
Chromatography/Mass Spectrometry (GC/MS)  
3. NIOSH Manual of Analytical Methods (NMAM) - 4th Edition Development and 
Evaluation of Methods  
9. Proposed date of adoption:  To be determined  
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  
 