G/TBT/N/RWA/931  
29 September 2023  
(23-6538) 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)  
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):  
Installations and equipment for waste disposal and treatment (ICS code(s): 13.030.40)  
5. Title, nu mber of pages and language(s) of the notified document:  RS 143: 2019, 
Wastewater treatment systems — Design and construction of septic tanks and associated 
effluent disposal systems — Code of practice; (45 page(s), in English)  
6. Description of content:  This Draft Rwanda standard gives technical aspects to be 
considered in the planning stages of wastewater control systems using septic tank 
systems and sets out the requirements for installation and operation of the systems. This 
draft standard covers the de sign, construction, testing and maintenance of septic tanks 
for the disposal of domestic wastewater including all waste, black water and grey water 
systems. It also recommends guidelines for the selection, design, construction and 
maintenance of systems fo r the on -site disposal of effluents from septic tanks. The 
systems recommended are soakage systems for the disposal of septic tank effluent below 
ground (soakage pits, seepage trenches, and seepage beds) for the disposal of septic 
tank effluents  
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; Protection of animal or plant 
life or healt h; Protection of the environment; Quality requirements; Cost saving and 
productivity enhancement  G/TBT/N/RWA/931  
 
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  8. Relevant documents:   
1. RS EAS 18 -1, Cements — Part 1: Composition, specification and conformity 
criteria for common cements  
2. RS EAS 18 -2, Cement — Part 2: Conformity evaluation  
3. RS EAS 148 (All parts), Cements — Test methods  
4. RS EAS 94, Burnt clay building blocks — Specification  
5. RS 107, Building sand from natural sources — Specification  
6. RS EAS 54, Burnt building bricks — Specification  
7. RS 144, Concrete building blocks and bricks — Specification  
8. RS ISO 22965 -2, Concrete — Part 2: Specification of constituent materials, 
production of concrete and compliance of concrete  
9. RS ISO 1920 (All parts), Methods of testing concrete  
10. RS EAS 412 -2, Steel for the reinfor cement of concrete — Part 2: Ribbed bars  
11. RS ISO 6935 -1, Steel for the reinforcement of concrete — Part 1: Plain bars  
12. RS 373, Aggregates for Concrete — Specification  
13. RS ISO 22475, Geotechnical investigation and testing — Sampling methods and 
groundwater mea surements — Part 1: technical principles for execution  
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 [ ] 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_12705_00_e.pdf