Name of parameterNorm Total
nitrogen content, % *8 Total
phosphates content, % *6 Mass
portion of water, %, max 1, 8 Granulometry,
% mass portion of granules sized from 2 to 4 mm, %, min
*0 less
than 6 mm, % **0 Static
strength of granules, MPa (kgf/cm2), min 3, 0
(*0) Magnesium
content, % 1, 2 Sulphates
content (as S), % 2
