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Standards Development
This document specifies references to the methods for the determination of the following specific elements in organic and organo-mineral fertilizers:
— determination of the total phosphorus content;
— determination of the total potassium content;
— determination of the total calcium content;
— determination of the total magnesium content;
— determination of the total sodium content;
— determination of the total sulphur content;
— determination of the inorganic arsenic content;
— determination of the cadmium content;
— determination of the total chromium content;
— determination of the total mercury content;
— determination of the total nickel content;
— determination of the total lead content;
— determination of the total copper content;
— determination of the total zinc content;
— determination of the water-soluble calcium content;
— determination of the water-soluble magnesium content;
— determination of the water-soluble sodium content;
— determination of the water-soluble sulphur content.
This document specifies references to the methods for the determination of the following specific elements in organo-mineral fertilizers:
— determination of the water-soluble phosphorus content;
— determination of the water-soluble potassium content;
— determination of the neutral ammonium citrate soluble phosphorus content;
— determination of the formic acid soluble phosphorus content;
— determination of the total boron content;
— determination of the total cobalt content;
— determination of the total iron content;
— determination of the total manganese content;
— determination of the total molybdenum content;
— determination of the water-soluble boron content;
— determination of the water-soluble cobalt content;
— determination of the water-soluble copper content;
— determination of the water-soluble iron content;
— determination of the water-soluble manganese content;
— determination of the water-soluble molybdenum content;
— determination of the water-soluble zinc content.
The scope of the standards referenced in this document specifies in which cases the method is also applicable to fertilizing product blends.
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