Appearance

White crystals

Assay (C5H10O5)

98.0-101.0%

Other saccharide

≤2.0%

Moisture

≤1.0%

Residue on ignition

≤0.05%

Specific optical rotation

(1g/25ml,water)

+17.0-+20.0°

Ph in aqueous solution

3.0-6.0

Heavy metals(as pb)

≤0.001%

Arsenic(as as2o3)

≤0.0002%

Iron(as Fe)

≤0.0005%

Sulfate

≤50ppm

Transmittance

 (2.0g/10ml,in water)

≥95.0%

Total acrobic bactoria, CFU/g

≤1000

Coliform,CFU/g

absent

Yeast &Mold, CFU/g

≤100