. /.  WORLD TRADE  
ORGANIZATION  G/TBT/N/GTM/25 
11 July 2005 
 (05-3054) 
Committee on Technical Barriers to Trade Original:   Spanish 
  
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6. 
 
1. Member to Agreement notifying:  GUATEMALA
 
If applicable, name of local government involved (Articles 3.2 and 7.2):  
2. Agency responsible:   Ministerio de Economía , Comisión Guatemalteca de Normas - 
COGUANOR (Ministry of the Economy, Guatemalan Standards Commission) 
Name and address (including telephone and fax numbers and E-mail and Web site 
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 [    ], other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading.  
ICS numbers may be provided in addition, where applicable):   International 
Classification for Standards (ICS) code 13.060.50 
5. Title, number of pages and language(s) of the notified document:   COGUANOR NGO 
29 014 h8:  Primera Revisión.  Aguas.  Determinación de Constituyentes Orgánicos . 
Demanda Química de Oxígeno (DQO)  (Guatemalan Standards Commission 
(COGUANOR) Mandatory Standard (NGO) No . 29 014 h8:  First Review.  Water.  
Determination of Organic Constituen ts.  Chemical Oxygen Demand (COD). 
6. Description of content:   Introduction, Purpose, Scope, COGUANOR standards to be 
consulted, General, Open reflux titrimetric met hod, Closed reflux titrimetric method, Closed 
reflux colorimetric method, Correspondence and Annexes. 
7. Objective and rationale, including the na ture of urgent problems where applicable:  
This Standard establishes methods for determ ining the Chemical Oxygen Demand (COD) of 
water. 
8. Relevant documents:  
Association of Official Analytical Chemis ts (AOAC), 1995, Official Method 973.46,  
Chemical Oxygen Demand (COD) of Water,  16th edition;  
APHA, AWWA and WEF, 1998, Standard Methods for the Analysis of Water and 
Wastewater,  20th edition, 5220, Determination of Chemical Oxygen Demand (COD) ; 
COGUANOR, 1997, NGO 29 014 h8:97:  Aguas.  Determinación de Constituyentes 
Orgánicos. Demanda Química de Oxígeno (DQO)   (Guatemalan Standards Commission 
(COGUANOR), 1997, Mandatory Standard  (NGO) No. 29 014 h8:97:  Water.  
Determination of organic constituents . Chemical Oxygen Demand (COD)); 
International Organization for Standardization (ISO), 1989, ISO 6060: Water Quality - 
Determination of the Chemical Oxygen Demand ,  2nd Edition. G/TBT/N/GTM/25 
Page 2  
 
 9. Proposed date of adoption:  
Proposed date of entry into force:   Upon publication in the Official Journal. 
To be determined 
10. Final date for comments:   60 days as from the date of notification. 
11. Texts available from:  National enquiry po int [   ], or address, telephone and fax 
numbers and E-mail and Web site add resses, if available, of other body:  
Comisión Guatemalteca de Normas (COGUANOR)  
Calzada Atanasio Tzul 27-32  Zona 12, Guatemala, Centro América 
Tel.: (+502) 2476-6784 to 87   
Fax: (+502) 2476-6777   E-mail: mbeteta@mail.mineco.gob.gt