Standard

Result of Inspection        

Character

Light brown to nut brown clear liquid                         

qualified               

Specific Density    

0.970~0.990                                         

0.987             

Refractive Index    

1.500~1.510                                           

1.503               

Optical Rotation          

+20°~+25°                                         

 +23°            

Solubility          

Soluble in carbinol, ethanol, propanol,  chloroform, trichloromethane, ether, benzene and mineral ether         

qualified             

Content             

menthone C₁₀H₁₈O: 20.0%~24.0%                               

21.6%             

Germacrone: 30.0%~38.0%

10.2%               

Microbial Limit                

bacteria: ≤ 1000/ml                               

qualified                

Mildew & microzyme: ≤100/ml                          

qualified              

Live acarid: forbidden                           

without             

Escherichia coli: forbidden                           

without