ITEM	STANDARD
Appearance	White or cream colored powder
Purity (%)	>= 99.5
Viscosity (1%, 25℃, mPa.s )	1800- 2900
Degree of substitution	0.65 - 0.85
pH (1% solution)	6.0- 8.5
Loss on drying (%)	=< 10
Sodium chloride (%)	=< 0.5
Total glycolate (%)	=< 0.4
Sulphated ash (%)	23 - 27
Lead	=< 3 mg/kg
Arsenic	=< 2 mg/kg
Mercury	=< 1 mg/kg
Cadmium	=< 1 mg/kg
?Total heavy metals (as Pb)	=< 10 mg/kg
Total plate count (cfu/g)	=< 1000
Yeast and mould (cfu/g)	=< 100
Coliform	Negative
Salmonella	Negative

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