G/TBT/N/RWA/258  
 
25 April 2019  
(19-2833) 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):  Other 
standards related to water quality (ICS 13.060.99)  
5. Title, number of pages and language(s) of the notified document:  DRS 189: 2019, 
Water quality — Swimming pool — Tolerance limits (11 page(s), in English)  
6. Description of content:  This Draft Rwanda Standard specifies the tolerances limits for 
the water used in swimming pools of continuous circulation type.  
7. Objective and rationale , including the nature of urgent problems where 
applicable:  Protection of human health or safety; Quality requirements  
8. Relevant documents:   
• RS ISO 10523, Water quality — Determination of pH  
• ISO 10566, Water quality — Determination of aluminium — Spectrometric method 
using pyrocatechol violet Water quality — Determination of suspended solids by 
filtration through glass -fibre filters  
• RS ISO 11923, Water quality — Determination of suspended solids by filtration 
through glass -fibre filters  
• RS ISO 1202 0, Water quality — Determination of aluminium — Atomic absorption 
spectrometric methods  
• ISO 5813, Water quality — Determination of dissolved oxygen — Iodometric 
method  G/TBT/N/RWA/258  
 
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  • ISO 5814, Water quality — Determination of dissolved oxygen — Electrochemical 
probe meth od 
• RS ISO 6332: Water a quality — Determination of iron  
• ISO 9963 Water quality — Determination of alkalinity  
• RS ISO 7027, Water quality — Determination of turbidity  
• RS ISO 7887, Water quality — Examination and determination of colour  
• ISO 8288, Water qualit y — Determination of cobalt, nickel, copper, zinc, cadmium 
and lead — Flame atomic absorption spectrometric methods  
• ISO 9297, Water quality — Determination of chloride — Silver nitrate titration 
with chromate indicator (Mohr's method)  
• ISO 9308 Water quality — Detection and enumeration of Escherichia coli and 
coliform bacteria — Part 3: Miniaturized method (Most Probable Number) for the 
detection and enumeration of E. coli in surface and waste water  
• ISO 7393, Water quality — Determination of free chlor ine and total chlorine  
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/2019/TBT/RWA/19_2449_00_e.pdf