G/TBT/N/RWA/131  
 
18 April 2018  
(18-2375) 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: RWANDA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible: Rwanda Standards Board (RSB)  
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:   
Rwanda Standards Board  
KK 15 Rd, 49  
P.O.BOX 7099, Kigali, Rwanda  
Tel: +250 788303492  
Email: info@rsb.gov.rw   
Website: www.rsb.gov.rw  
3. Notified under Article 2.9.2 [ X], 2.10.1 [   ], 5.6.2 [   ], 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): Fertilizers 
(ICS 65.080).  
5. Title, number of pages and language(s) of the notified document: 
DARS  1488:2018, Potassium sulphate (sulphate of potash) fertilizer — Specification 
(9 page(s), in English)    
6. Description of content: This African Standard specifies the requirements, sampli ng and 
methods of test for potassium sulphate (sulphate of potash) fertilizer  
7. Objective and rationale, including the nature of urgent problems where 
applicable: Protection of animal or plant life or health; Quality requirements  
8. Relevant documents:   
 AOAC Official Method 928.02, Chlorine (water -soluble) in fertilizers  
 AOAC Official Method 980.02, Sulfur in fertilizers — Gravimetric method  
 AOAC Official Method 983.04, Sodium in fertilizers — Atomic absorption 
spectrophotometric method  
 AOAC 2006.03, Ars enic, cadmium, cobalt, chromium, lead, molybdenum, nickel, and 
selenium in fertilizers — Microwave digestion and inductively coupled plasma -optical 
emission spectrometry  
 EN 12048, Solid fertilizers and liming materials — Determination of moisture content 
— Gravimetric method by drying at 105±2 °C  
 EN 15477, Fertilizers — Determination of the water -soluble potassium content  G/TBT/N/RWA/131  
 
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   EN 15925, Fertilizers — Extraction of total sulfur present in various forms  
 EN 16032, Fertilizers — Extraction and determination of elemental sulfur  
 EN 16195, Fertilizers — Determination of chlorides in the absence of organic material  
 ISO 7409, Fertilizers — Marking — Presentation and declarations  
 ISO 8157, Fertilizers and soil conditioners — Vocabulary  
 ISO 8397, Solid fertilizers and soil conditioners — Test sieving  
 ISO 14820 -1, Fertilizers and liming materials — Sampling and sample preparation — 
Part 1: Sampling  
 ISO 14820 -2, Fertilizers and liming materials — Sampling and sample preparation — 
Part 2: Sample preparation  
 ISO 17318, Fert ilizers and soil conditioners — Determination of arsenic, cadmium, 
chromium, lead and mercury contents  
 ISO 17319, Fertilizers and soil conditioners — Determination of water -soluble 
potassium content — Potassium tetraphenylborate gravimetric method  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  
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:   
KK 15 Rd, 49  
Toll Free: 3250  
Tel: +250 788303492  
Email: info@rsb.gov.rw  
Website: www.rsb.gov.rw  
P.O.BOX 7099, Kigali, Rwanda  
https://members.wto.org/crnattachments/2018/TBT/RWA/18_2060_00_e.pdf