KENYA STANDARD                  KS 2380 : 201 8  
           
 
 
 
 
 
 
 
 
 
 
  
Chelated Micro nutrient fertilizers -
Specification  
 
 
 
 
 
 
        
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8 
     DRAFT STANDARD AUGUST   2018                          SECOND   EDITION  
        
 
 
 
 
  
 
  
 
 
  
TECHNICAL COMMITTEE  REPRESENTATION  
 
 
 
The following organizations were represented on the Technical Committee:  
 
Government Chemist  
Mea Ltd.  
Chemagro Ltd  
Kenya Plant Health Inspectorate Services (KEPHIS)  
Kenya Agricultural   and livestock research  organization  
Yara East Africa Ltd  
Kenya Tea Development Agency  
University of Nairobi  
Ministry of Agriculture, Livestock and fisheries  
Amiran (K) Ltd  
Toyota Tshusho Fertilizers  
Elgon chemicals  
Osho chemicals  
OCP Kenya Ltd.  
Kel Chemicals  
Kenya Bureau of Sta ndards — 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 B ureau of Standards, 
are welcome.  
 
 
 
 
  
 3 © Kenya Bureau of standards, 201 8  
 
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, stored 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 : 201 8 
                     
           
 
 
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) 6040 31 
E-Mail: info@kebs.org,  Web:http://www.kebs.org   
 
Coast Region     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 stand ards project committee and it is in 
accordance with the procedures of the  Kenya  bureau of standards.  
 
 
During the preparation of this standard special attention was paid to the environmental 
aspects associated with fertilizer raw materials.  Thus limits fo r heavy metal contamination 
for arsenic (As), cadmium (Cd), mercury (Hg), selenium (Se), lead (Pb) and chromium (Cr) 
have been specified.  
 
Recent Association of Official Analytical Chemists (AOAC) methods of analysis have been 
adopted and the particle size  requirements for all granulated fertilizers have been 
harmonized.  
 
 
 
 
 
In drafting this standard reference was  made to the following documents  
 
. 
 1. FAO/AGL: Mineral Fertilizer Specifications  2012  
  
 
 
 
 
Acknow ledgement is hereby made for assistance derived from the above documents  
 
 
 
 
 
 
  
 5 Chelated Micro nutrient fertilizers -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  
 
3.1 Description  
The fe rtilizer shall be either         a solid, a homogenous liquid, or a suspension   
concentrate  
 
 
3.2. Requirements  
 
i)  The fertilizer shall be   chelated  with the appropriate chelating agent for fast 
absorption of all individual micro elements in to the plant s. 
ii) The fertilizer shall be virtually free from Chloride, Sodium and other harmful 
elements for plants.  
iii)  The chelating agent used   shall not be harmful to plant  
3.3 Physical  
a) The  fertilizer shall be free from foreign matter  
b) It shall be free from hard lumps  
C)  free from harmful substances  
 
 
3.4. Chemical.  
Each Chelated  Micronutrient Fertilizer shall have a guarantee of the elem ent(s) 
contained.  
 
 
 
 
3.4 Heavy metal contaminants   
 
The heavy metal contaminants, if present, shall not exceed the l imits 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.  1.0 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 with 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 manufac ture, 
iv.  expiry date  
   v)      batch/lot number  
  vi)   net weight of the fertilizer in the package; in metric units  
vi)          Chelating agent (s) 
 vii)) Active ingredients content  
  viii        Storage  and Handling instructions  
  ix)          instructio ns for use  where applicable.  
   x)         disposal instructions  
   xi)) Country  of origin;  
4 Certificate of analysis  
 
Each consignment shall be accompanied by a certificate of analysis.  
 
  
 7 5. 
Sampling  
This shall be done as per the relevant ISO Standard s ISO 8633 and ISO 8634