NPK 15-15-15

Minimum percentage for guarantee
 SL NO      Element                          %
1.             Boron(B)                       0.02
2.             Calcium(Ca)                 1.00
3.             Cobalt(Co)                   0.0005
4.             Copper(Cu)                  0.05
5.             Iron(Fe)                        0.10
6.             Magnesium(Mg)          0.60
7.             Manganese(Mn)          0.50
8.             Molybdenum (Mo)       0.0005
9.             Sulphur(S)                     1.00
10            Zinc(Zn)                         0.05
 The moisture content shall be not more than 1.5% m/m
 PH Value: The Ph value of a 10% (m/v) aqueous solution, offertilizer, shall be not less than 4.5, when tested
 Heavy Mental Contaminants
 SL NO        Parameter                     limits in ppm       test method
1.               Arsenic, As,max                    20.0             AOAC/AAS
2.               Cadmium, Cd,max                  7.0             AOAC/AAS
3.               Mercury, Hg,max                    0.1             AOAC/AAS
4.               Selenium, Se,max                    1.0             AOAC/AAS
5.               Lead, Pb,max                         30.0              AOAC/AAS