Items |
Standard |
Appearance |
White or off-white free-flowing powder |
Identification |
A:A bright red/orange color develops. |
B:Optical Rotation. The dl-forms show essentially no optical rotation. |
C:The retention time of the major peak of the sample solution corresponds that of the standard solution,as obtained in the Assay. |
Solubility |
Dispersible in cool water forming a milky emulsion |
Content |
≥50% |
Loss on Drying |
≤3.0% |
Sieve Anylysis |
100% through sieve NO.40(US) |
≥90% through sieve NO.60(US) |
≥45% through sieve NO.100(US) |
Heavy Metal |
≤10ppm/kg |
Arsenic |
≤1ppm/kg |
Pb |
≤2ppm/kg |
Methanol |
<3000ppm |
Hexane |
<290ppm |
Total Plate Count |
<1000CFU/g |
Yeast & Moulds |
<100CFU/g |
Coliforms |
<3.0MPN/g |
Salmonella |
Negative(In 25g) |