G/TBT/N/UGA/1646  
1 July 2022  
(22-5118) 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); Fuels (ICS code(s): 75.160), 
Gaseous Fuels  
5. Title, number of pages and language(s) of the notified document:  DUS 
2528:2022, Standard Practice for Gas Chromatograph Based On -line/At -line 
Analysis for Sulfur Content of Gaseous Fuels, First edition ; (13 page(s), in English)  
6. Descript ion of content:  This Draft Uganda Standard is for the determination of volatile 
sulfur -containing compounds in high methane content gaseous fuels such as natural gas 
using on -line/at -line instrumentation, and continuous fuel monitors (CFMS). It has been 
successfully applied to other types of gaseous samples including air, digester, landfill, and 
refinery fuel gas. The detection range for sulfur compounds, reported as picograms sulfur, 
based upon the analysis of a 1 cc sample, is one hundred (100) to one mil lion (1,000,000). 
This is equivalent to 0.1 to 1,000 mg/m3.  
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/1646  
 
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  8. Relevant documents:   
1. ASTM D1072 Test Method for Total Sulfur in Fuel Gases by Combustion and 
Barium Chloride Titration  
2. ASTM D1945 Test Method for Analysis of Natural Gas by Gas Chromatography  
3. ASTM D3606 Test Method for Determination of Benzene and Toluene in Finished 
Motor and Aviation Gasoline by Gas Chromatography  
4. ASTM D3764 Practice for Validation of the Performance of Process Stream 
Analyzer Systems  
5. ASTM D4084 Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead 
Acetate Reaction Rate Method)  
6. ASTM D4468 Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and 
Rateometric Colorimetry  
7. ASTM D4626 Practice for Calculation of Gas Chromatographic Response Factors  
8. ASTM D4810 Test Method for Hydrogen Sulfide in Natural Gas Using Length -of-
Stain Detector Tubes  
9. ASTM D5504 Test Method for Determination of Sulfur Compounds in Natural Gas 
and Gaseous Fuels by Gas Chromatography and Chemiluminescence  
10. ASTM D6621 Practice for Performance Testing of Process Analyzers for Aromatic 
Hydrocarbon Material s 
11. ASTM D6122 Practice for Validation of the Performance of Multivariate Online, At -
Line, and Laboratory Infrared Spectrophotometer Based Analyzer Systems  
12. ASTM D6228 Test Method for Determination of Sulfur Compounds in Natural Gas 
and Gaseous Fuels by Gas C hromatography and Flame Photometric Detection  
13. ASTM E594 Practice for Testing Flame Ionization Detectors Used in Gas or 
Supercritical Fluid Chromatography  
14. ISO 7504 Gas Analysis -Vocabulary  
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