Appearance: light yellow powder
Amino acid: 40 % min
Loss on drying: 5.0% max
(NH4)2SO4: 55% max
Heavy metal (Pb): 0.001% max
As: 0.0003% max
Residue on ignition: 1.0% max

Appearance: Brownish flake
Organic matter: 45 – 55%
Alginic: 10%
Total Nitrogen: 0.6%
Phosphate (P2O5): 5.0%
Potash (K2O): 20%
Specific gravity: 0.5g/cm3
pH: 9-10

Appearance: Brownish flake
Odder: Seaweed – like
Organic matter: 45 – 55%
Alginic: 8 – 15%
Total Nitrogen: 0.5%
Phosphate (P2O5): 3.0%
Potash (K2O): 18 – 22%