G/TBT/N/RWA/860  
27 April 2023  
(23-2971) Page: 1/3 
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)  
KK 15 Rd, 49  
P.O.BOX 7099, Kigali, Rwanda  
Tel: +250 788303492  
Email: info@rsb.gov.rw  
Website: www.rsb.gov.rw   
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 [X], 2.10.1 [  ], 5.6.2 [  ], 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):  - Filtering 
or purifying machinery and apparatus for liquids :(HS code(s): 84212); C eramic products 
(ICS code(s): 81.060.20)  
5. Title, number of pages and language(s) of the notified document:  DRS 561: 2023, 
Ceramic water filters — Specification; (17 page(s), in English)  
6. Description of content:  This Draft Rwanda standard specifies re quirements, sampling 
and test methods for ceramic water filter used to filter water for human consumption.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Consumer information, labelling; Prevention of deceptive practices and 
consumer protection; Protection of human health or safety; Quality requirements; 
Reducing trade barriers and facilitating trade  
8. Relevant documents:   
1. ASTM D3866 -18, Standard Test Methods for Silver in Water  
2. RS ISO 9308 -1, Water q uality — Enumeration of Escherichia coli and coliform 
bacteria — Part 1: Membrane filtration method for waters with low bacterial 
background flora  
3. RS ISO 11923, Water quality — Determination of suspended solids by filtration 
through glass -fibre filters  G/TBT/N/RWA/860  
 
- 2 - 
 
  4. RS ISO 15681 -2,Water quality — Determination of orthophosphate and total 
phosphorus contents by flow analysis (FIA and CFA) — Part 2: Method by 
continuous flow analysis (CFA)  
5. RS ISO 17378 -2, Water quality — Determination of arsenic and antimony — Part 
2: Method using hydride generation atomic absorption spectrometry (HG -AAS) 
6. RS ISO 15681 - 2,Water quality — Determination of orthophosphate and total 
phosphorus contents by flow analysis (FIA and CFA)  
7. RS ISO 4832, Microbiology of food and animal feeding  stuffs — Horizontal method 
for the enumeration of coliforms — Colony -count technique  
8. RS ISO 5961, Water quality — Determination of cadmium by atomic absorption 
spectrometry  
9. RS ISO 6222, Water quality — Enumeration of culturable microorganisms — 
Colony cou nt by inoculation in nutrient agar culture media  
10. RS ISO 6333, Water quality — Determination of manganese — Formaldoxime 
spectrometric method  
11. RS ISO 6461 -2, Water quality — Detection and enumeration of the spores of 
sulfite -reducing anaerobes (clostridia) — Part 2: Method by membrane filtration  
12. RS ISO 6777, Water quality — Determination of nitrite — Molecular absorption 
spectrometric method  
13. ISO 6785, Milk and milk products — Detection of Salmonella spp.  
14. RS ISO 6888 -1, Microbiology of food and a nimal feeding stuffs — Horizontal 
method for the enumeration of coagulass -positive staphylococci (Staphylococcus 
aureus and other species)  
15. RS ISO 7027 -1, Water quality — Determination of turbidity — Part 1: Quantitative 
methods  
16. RS ISO 7887, Water quality — Examination and determination of colour  
17. RS ISO 7888, Water quality — Determination of electrical conductivity  
18. RS ISO 7890 -3, Water quality — Determination of nitrate — Part 3: Spectrometric 
method using sulfosalicylic acid  
19. RS ISO 7899 -2, Water quality — Detection and enumeration of intestinal 
enterococci — Part 2: Membrane filtration method  
20. RS ISO 8288, Water quality — Determination of cobalt, nickel, copper, zinc, 
cadmium and lead — Flame atomic absorption spectrometric methods  
21. ISO 10359 -2, Water quality — Determination of fluoride — Part 2: Determination 
of inorganically bound total fluoride after digestion and distillation  
22. RS ISO 10523, Water quality — Determination of pH  
23. RS ISO 12846, Water quality — Determination of mercury — Method using Atomic 
Absorp tion Spectrometry (AAS) with and without enrichment  
24. RS ISO 16266 -2, Water quality — Detection and enumeration of Pseudomonas 
aeruginosa — Part 2: Membrane filtration method  
25. RS ISO 17378 -2, Water quality — Determination of arsenic and antimony — Part 
2: Met hod using hydride generation atomic absorption spectrometry (HG -AAS) 
26. RS ISO 21567, Microbiology of food and animal feeding stuffs — Horizontal 
method for the detection of Shigella spp.  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  G/TBT/N/RWA/860  
 
- 3 - 
 
  10. Final date for comments:  27 May 2023  
11. Texts available from:  National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
Rwanda Standards Board (RSB)  
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/2023/TBT/RWA/23_9256_00_e.pdf