State of solution:Clear and colorless(Transmittance) Not less than 95.0%Chloride (Cl):Not more than 0.020%Ammo
nium (NH4):Not more than 0.02%Sulfate (SO4):Not more than 0.020%Iron (Fe):Not more than 30ppmHeavy me
tal(Pb):Not more than 10ppmArsenic(As2O3):Not more than 1ppmOther amino acids:Chromatographically Not detectableLoss on drying: Not more than 0.20%Residue on ignition(sulfated):Not more than 0.15%Assay:98.5 to100.5%
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