Item

Index

Test result

Appearance

White crystalline powder

Conforms to standard

Assay (on dry basis) %

99.5-100.5

99.8

Loss on drying %

≤0.20%

0.15

Residue on ignition %

≤0.1%

< 0.1%

Reducing Sugars %

≤0.3%

0.2%

Ribitol and glycerol

≤0.1%

0.08%

Melting   range°C

118~122°C

120°C

Heavy metal(pb) mg/kg

≤1.0 mg/kg

< 0.5

Arsenic(count as As) mg/kg

≤0.3 mg/kg

< 0.1

Bacterium total

≤300 cfu/g

< 100

E.Coli

≤30  MPN/100g

Not exist

Pathogenic bacteria

Negative

Not exist