... %19.12-19.5119.18Ammonium salt (NH4), %≤0.02Conforms Sulfate (SO4), %≤0.020ConformsIron (Fe), ppm≤107Heavy metals (Pb ... kinds of L-Lysine:L-Lysine HCl 98.5% (Feed Grade) L-Lysine Sulphate 65% (Feed Grade) L-Lysine Sulphate ... QS and ISO 9001:2000 certificates are available. L-Lysine HCl 98% could attribute 78.4% ... provide 51% free lysine in the feed. And L-Lysiine Sulphate 70%, equal to 70% lysine HCl ...