. /.  WORLD TRADE  
ORGANIZATION  G/TBT/N/CHN/148 
10 October 2005 
 (05-4565) 
Committee on Technical Barriers to Trade Original:   English 
  
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6. 
  
1. Member to Agreement notifying:   THE PEOPLE’S REPUBLIC OF CHINA
 
If applicable, name of local government involved (Articles 3.2 and 7.2):         
2. Agency responsible:   Standardization Administration of China (SAC) 
Name and address (including telephone and fax numbers, 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):   Potassium sulfate for 
agricultural use 
5. Title, number of pages and langu age(s) of the notified document:   National Standard of 
the P.R.C., Potassium Sulfate For Agri cultural Use (10 pages, in Chinese) 
6. Description of content:   The National Standard “Potassium Sulfate for Agricultural Use” is 
the revised edition of the sectoral  standard “Potassium Sulfate for Agricultural Use”.  It sets 
the technical requirements, testing methods, inspection procedures, marking, packages, 
transport and storage for product.  This standa rd is applied to solid potassium sulfate for 
agricultural use manufactured with all kinds of technique.  Potassium sulfate for agricultural 
use should conform to the requirements listed in Table 1. 
Table 1   Requirements for Potassium Sulfate for Agricultural Use  % 
 
Powder crystal Granular 
Item 
Excellent Typical Guarante
e Excellent Typical Guarantee
water- soluble  K 2O % by mass  
≥ 50.0 50.0 45.0 50.0 50.0 40.0 
water- soluble  Cl- % by mass  
≤ 1.0 1.5 2.0 1.0 1.5 2.0 
moisture at 105 ℃ % by mass  
≤ 0.5 1.5 3.0 0.5 1.5 3.0 
H2SO 4 % by mass  
≤ 1.0 1.5 2.0 1.0 1.5 2.0 
particle size distribution 
(1.00~4.75mm or 3.35~5.60mm) ≥    ／ ／ ／ 90 90 
90 G/TBT/N/CHN/148 
Page 2  
 
  This National Standard is mandatory as stated in the articles, of which the 
requirements in Chapter 3 (see Table 1), insp ection procedures in Chapter 5, marking on 
indications in Chapter 6 (potassium oxide and chloride content should be declared on the 
container, while the rest implementing GB18382 "Fertilizer Marking-Presentation and Declaration"), and packing, transport and stor age in Chapter 7 are mandatory, and the others 
are recommended.  This National Standard is applied to potassium sulfate for agricultural 
use produced and sold within the territory of the P.R.C.. 
7. Objective and rationale, including the nature of urgent problems where applicable:    
 To regulate market 
8. Relevant documents:   - 
9. Proposed date of adoption:   
Proposed date of entry into force:   90 days after circulation by WTO Secretariat 
6 months after adoption 
10. Final date for comments:   60 days after circulation by WTO Secretariat 
11. Texts available from:  National enquiry point [  X ] or address, telephone and fax 
numbers, e-mail and web-site addresses, if available of the other body:   
WTO/TBT National Notification and Enquiry Center of the People’s Republic of China 
Tel:  (+86) 10 82260618 
Fax:  (+86) 10 82262448 
E-mail:  tbt@aqsiq.gov.cn