IFFCO
Sulphate Sulphur (as S) per cent by weight, minimum: : Matter insoluble in water per cent by weight, maximum: : pH (5% solution) : Lead (as Pb) per cent by weight, maximum: : Cadmium (as Cd) per cent by weight, maximum: : Arsenic (as As) per cent by weight, maximum: : 4. DiSodium Tetra Borate Penta Hydrate: Specifications as per FCO. Boron (as B) per cent by ...