. /.  WORLD TRADE  
ORGANIZATION   
G/TBT/N/TTO/106 
10 April 2012  
 (12-1855) 
Committee on Technical Barriers to Trade Original:   English 
  
 
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6 
 
1. Notifying Member:  TRINIDAD AND TOBAGO  
If applicable, name of local governme nt involved (Article 3.2 and 7.2):     
2. Agency responsible:  Trinidad and Tobago Bureau of Standards 
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 [   ], other:   
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading. 
ICS numbers may be provided in addition, where applicable):  Thermal Solar Systems 
and Components - Solar Collectors (ICS 27.160) 
5. Title, number of pages and language(s) of the notified document:  TTS/EN 12975-1: 
20XX –- Thermal Solar Systems and Components - Solar Collectors - Part 1:  General 
Requirements  (26 pages, in English).     
6. Description of content:  This Trinidad and Tobago Standard specifies requirements on 
durability (including mechanical strength), re liability and safety for liquid heating solar 
collectors. It also includes provisions for ev aluation of conformity to these requirements.  
It is not applicable to those collectors, in whic h the thermal storage unit is  an integral part of 
the collector to such an extent, that the co llection process cannot be separated from the 
storage process for the purpose of making meas urements of these two processes. It is 
basically applicable to concentrating collectors ; thermal performance testing as given in EN 
12975-2:2006, 6.3. (quasi dynamic testing) is also  applicable to most concentrating collector 
designs, from stationary non-imaging concentrat ors as CPCs to high concentrating tracking 
designs. 
Collectors that are custom-built (built in, roof  integrated collectors that do not comprise 
factory made modules and are asse mbled directly on the place of in stallation) cannot be tested 
in their actual form for durability, reliabili ty and thermal performance according to this 
standard. Instead, a modul e with the same stru cture as the ready coll ector is tested. The 
module gross area in the case of custom built coll ectors should be at least 2 m². The test is 
valid only for larger collectors, than the tested module. 
7. Objective and rationale, including the na ture of urgent problems where applicable:  
Compulsory status has been recommended in or der to protect the consumer or user against 
danger to health or sa fety by ensuring a produc t of acceptable quality.  G/TBT/N/TTO/106 
Page 2  
 
  8. Relevant documents:    
EN 12975-2:2006, Thermal solar systems and components - Sol ar collectors - Part 2:  Test 
methods 
EN ISO 9488, Solar energy - Vocabulary (ISO 9488:1999) 
ISO 9806-1:1994, Test methods for solar collectors - Part  1: Thermal performance of glazed 
liquid heating collectors including pressure drop 
ISO 9806-2:1995, Test methods for solar collectors - Part 2: Qualification test procedures  
ISO 9806-3:1995, Test methods for solar collectors - Part 3: Thermal performance of 
unglazed liquid heating collectors (sensible he at transfer only) including pressure drop    
9. Proposed date of adoption:   
 
  Proposed date of entry into force:    On a date to be notified by the Minister to 
whom responsibility for trade and industry is assigned, in a Notice to be published in the Trinidad and Tobago Gaze tte as required by the 
Standards Act. 
On a date to be notified by the Minister to 
whom responsibility for trade and industry is assigned, in a Notice to be published in the Trinidad and Tobago Gaze tte as required by the 
Standards Act. 
10. Final date for comments:  23 May 2012 
11. Text available from:  National enquiry point [X], or address, telephone and fax 
numbers, e-mail and web-site addres ses, if available of the other body:    
Trinidad and Tobago Bureau of Standards 
1-2 Century Drive,  
Trincity Industrial Estate,  Macoya, Tunapuna,  Trinidad and Tobago  Email Address:  ttbs@ttbs.org.tt