G/TBT/N/UGA/869  
 
9 July 2018  
(18-4288) 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  
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 [  ], other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable): Portland 
cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic 
cements, whether or not  coloured or in the form of clinkers. (HS 2523). Cement. Gypsum. 
Lime. Mortar (ICS 91.100.10).  
5. Title, number of pages and language(s) of the notified document: FDUS EAS 148 -6, 
Cements - Test methods - Part 6: Determination of fineness, 1st edition (27 page(s), in 
English)   
6. Description of content: This Final Draft Uganda Standard describes three methods for 
determining the fineness of cement and applies to all the cements defined in EAS 18 -1.  
The sieving method serves only to demonstrate the presence of coarse cement particles. 
This method is primarily suited to checking and controlling the production process.  
The air -jet sieving method measures the retention on sieving and is suitable for particles 
which substantially pass a 2.0 - mm test sieve. It may be used to determine the particle 
size distribution of agglomerates of very fine particles. This method may be  used with test 
sieves in a range of aperture sizes, for example 63 μm and 90 μm.  
The air permeability method (Blaine) measures the specific surface (mass related surface) 
by comparison with a reference cement sample. The determination of the specific sur face 
serves primarily to check the consistency of the grinding process of one and the same 
plant. This method only enables a limited assessment to be made of the properties of the 
cement in use.  
7. Objective and rationale, including the nature of urgent p roblems where 
applicable: Harmonization; Reducing trade barriers and facilitating trade  
8. Relevant documents:   
1. EAS 18 -1, Cement - Part 1: Composition, specifications and conformity criteria for 
common cement  
2. ISO 383, Laboratory glassware - Interchangeab le conical ground joints  
 G/TBT/N/UGA/869  
 
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  3. ISO 565, Test sieves - Metal wire cloth, perforated metal plate and electroformed 
sheet - Nominal sizes of openings.  
4. ISO 3310 -1, Test sieves - Technical requirements and testing - Part 1: Test sieves 
of metal wire cloth  
5. ISO 4803,  Laboratory glassware - Borosilicate glass tubing  
6. EN 196 -6: 2005; Methods testing cement - Part 6: Determination of fineness  
9. Proposed date of adoption:  September 2018  
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:   
https://members.wto.org/crnattachments/2018/TBT/UGA/18_3592_00_e.pdf