Testing   Item

Standard

Result

Appearance

White crystals or crystalline powder

conforms

Assay/%

98.5%~101%

99.60

Specific   Rotation

+38.9~+41.8 °

+40.5 °

Identification   (Infrared Absorption)

Corresponding to   Reference Spectrum

conforms

Residue on Ignition/%

≤0.30

0.06

Loss on Drying

≤0.3

0.07

Chloride (Cl)/%

≤0.05

0.016

Iron (Fe)/%

≤0.0030

0.0009

Sulfate ( SO4)/%

≤0.03

0.015

Heavy   Metal(Pb)/%

≤0.0015

0.0008

Arsenic(As)/%

≤0.0003

≤0.0001

Cadmium   (Cd)/%

≤0.0001

0.00004

Mercury   (Hg)/%

≤0.0001

0.00003

Total   Plate Count(cfu/g)

≤1000

69

Yeast   and Molds(cfu/g)

≤100

11

E.Coli

Negative   in 10g

conforms

Staphylococcus   Aureus

Negative   in 10g

conforms

Salmonella

Negative   in 10g

conforms

Loss   on Drying/%

≤0.30

0.17

PH

5.5~7.0

6.2