Test Items

Specification

Appearance

White crystals powder

Identification

Meets the requirement

Assay

98.0% - 102.0%

pH

3.0-5.0

Specific rotation

+50.0°- +52.0°

Loss on drying

1.0% max.

Residues on ignition

27.0%-29.0%

Sulfate

15.5-16.5% max.

Heavy metals

10ppm max.

As

3ppm max.

Total plate count

1000cfu/g max.

Yeast and mold

100cfu/g max.

Salmonella

Negative

E.Coli

Negative