KENYA STANDARD                  KS 2380 : 2022  
           
 
 
 
 
 
 
 
 
 
 
  
Chelated Micro Nutrient  Fertilizers -
Specification  
 
 
 
 
 
 
        
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     DRAFT STANDARD   AUGUST   2022                              SECOND   EDITION  
        
 
 
 
 
  
 
  
 
 
  
TECHNICAL COMMITTEE  REPRESENTATION  
 
The following organizations were represented on the Technical Committee :  
 
Kenya Agricultural and Livestock Research Organization (KALRO)  
Government chemist  
Mea Ltd   
Amiran (K) ltd  
Chemagro   International  Ltd. 
Yara East Africa  
Kenya Tea Development Agency.  
Kenya Plant Health Inspectorate Services (KEPHIS)  
State department of   Crop Development and Agricultural Research  
State department of livestock  
Osho Chemicals Ltd  
Elgon chemicals   Ltd  
Toyota Tshuso Fer tilizers Africa  
University of Nairobi -Department of plant science and crop protection  
OCP Africa  
ICL Fertilizers  
Lachlan(K) Ltd  
Wanda Agriculture  
National Potato Council of Kenya  
Kenya Industrial Research and development   Institute  
Top serve East Africa  
Elgon(K) Ltd  
Kenya flower council  
Kenya Chemical society  
SGS(K) Ltd  
BASF Chemicals  
Twiga Chemicals  
Sanergy   Ltd  
SABIC   Ltd   
Society of crop agribusiness advisors(SOCAA)  
Samsung C&T  
Kenya Bureau of Standards — Secretariat  
 
 
 
 
 
REVISION OF KENYA STANDARDS  
 
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed. Suggestions 
for improvements to published standards, addressed to the Managing Director, Kenya Bureau of Standards, 
are welcome.  
  
 3  
 
 
 
© Kenya Bureau of standar ds, 20 22 
 
Copyright:  Users are reminded that by virtue of Section 6 of the Copyright Act, Cap. 130 of the Laws of Kenya, copyright subsists in all 
Kenya Standards and except as provided under Section 7 of this Act, no Kenya Standard may be reproduced, sto red in a retrieval 
system in any form or transmitted by any means without prior permission in writing from the Managing Director.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KENYA STANDARD                          KS 2380 : 2022 
                     
           
 
 
Chelated Micro Nutrient  Fertilizer -
Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
KENYA BUREAU OF STANDARDS (KEBS)  
 
Head Office:  P.O. Box 54974, Nairobi -00200, Tel.: (+254 020) 605490, 602350, Fax: (+254 020) 604031  
E-Mail: info@kebs.org,  Web:http://www.kebs.org   
 
Coast Regio n    Lake Region          Rift Valley Region  
P.O. Box 99376, Mombasa -80100   P.O. Box 2949, Kisumu -40100        P.O. Box 2138, Nakuru -20100Tel.: 
(+254 041) 229563, 230939/40                Tel.: (+254 057) 23549, 22396        Tel.: (+254 051) 210553, 
210555Fax:  (+254 041) 229448    Fax: (+254 057) 2 027814 Forewo Foreword  
 
 
This   Kenya standard has been  prepared by the Technical Committee on Fertilizers and 
soil conditioners  under the guidance of standards project committee and it is in 
accordance with the procedur es of the  Kenya  bureau of standards.  
 
 
During the preparation o f this standard limits for selenium were reviewed. The requirement 
on absence of sodium and chlorides was also removed as it seemed impractical due to the 
nature of the products . 
 
  
 
 
 
 
In draf ting this standard reference was  made to the following documents  
 
. 
 1.. FAO Mineral fertilizer specifications,2012  
  
 
 
 
 
Acknowledgement is hereby made for assistance derived from the above documents  
 
 
 
 
 
 
 
  
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Chelated Micro Nutrient  Fertilize rs-Specification          
 
 
 
1.0 Scope  
 
This Kenya Standard specifies the requirements, and prescribes methods of 
sampling and tests for Chelated micro nutrient fertilizer s. 
 
 
2.0. Definitions and terms  
The terms and abbreviations used in this standard are  in accordance with the 
explanations contained in this document: ISO 8157: 2015 ; fertilizers  and soil 
conditioners: vocabulary  
 
3.0   Description  
The fertilizer shall be either a solid, a homogenous liquid, or a suspension   
concentrate  
 
 
3.1. Requirements  
 
i)  The fertilizer shall be   chelated  with the appropriate chelating agent for fast 
absorption of all individual micro elements in to the plants.  
ii)  The chelating agent used   shall not be harmful to plant  
3.2 Physical  
a) The  fertilizer shall be free f rom foreign matter  
b) It shall be free from hard lumps  
c) free from harmful substances  
 
3.3. Chemical . 
Each Chelated  Micronutrient Fertilizer shall have a guarantee of the elem ent(s) 
contained.  
  
 
  
 
 
3.4 Heavy metal contaminants   
 
The heavy metal contaminant s, if present, shall not exceed the limits stipulated in Table 2.  
 
Table 2 — Heavy metal contaminants limits  
 
SL NO  Parameter  Limits in ppm  Test method  
i) Arsenic, As, max.  20.0 AOAC  
ii) Cadmium, Cd, max.  7.0 AOAC  
iii) Mercury, Hg, max.  0.1 AOAC  
iv) Selenium, Se, max.  10.0 AOAC  
v) Lead, Pb, max.  30.0 AOAC  
Vi) Chromium,  Cr, max  500           AOAC  
 
 
4 Packaging and marking  /labelling  
4.1 Packaging   
 
4.1.1 The fertilizer shall be packaged in materials that ensures  the product integrity  and 
quality  and protect it  against physical  damage , chemical and moisture contamination.  
 
4.1.2. The fill of the package shall comply with the weight and measures act CAP 513 of the 
laws of Kenya  
 
4.1.3 The disposal of used package and condemned fertilizer shall comply w ith EMCA 1999 
no.8 of the disposal of solids and liquid wastes  
 
4.2. Marking / labelling  
The following information shall be clearl y and indelibly marked on each package or container.          
 
i. Name, address and physical location of manufacturer/packer/importer;  
ii. name of the fertilizer  
iii. date of manufacture,  
   iv)expiry date  
   v).    batch/lot number  
   Vi)   the net weight of the fertilizer in the package; in metric units  
   vii) Chelating agents  
  viii)  Active ingredients content  
  ix)       Storage  and Handling instructions  
   x)        instructions  for use  where applicable.  
   xi)        disposal instructions   
 7    xii. Country  of origin;  
4 Certificate of analysis  
 
Each consignment shall be accompanied by a certificate of analysis.  
 
5. 
Sampling  
This shall be done as per the relevant ISO Standard s ISO 8633 and ISO 8634