Item Standard
State of solution
(Transmittance) Clear
and colorless Not
less than 95.0% Chloride
(Cl) Not
more than 0.020% Ammonium
(NH4) Not
more than 0.02% Iron (Fe)
Not more than 30ppm
Heavy metal(Pb)
Not more than 10ppm
Arsenic(As2O3) Not
more than 1ppm Other
amino acids Chromatographically
Not detectable
Loss on drying
Not more than 0.20%
Residue on ignition(sulfated) Not
more than 0.15% Assay
98.5 to100.5%
