Appearance: White or yellowish-white powder or flakes
Water-soluble substances % max.: 1.0:
pH Value (1% in water): 5.0-8.0:
Loss on Drying % max: 5.0
Sulphate ash % max: 0.1:
Nitrogen Cotent %: 11.0-12.8:
Impurity A(Vinylpyrrolidone) ppm max: 10
Peroxide(As H2O2) ppm max: 400:
Heavy metals ppm max: 10
Partical size (µm), ≥80%: 50-250: