specs  :20% 40% 50% 95% 98% 99% 

Item	Specification	Test result
Assay	Resveratrol 98% by HPLC	99.16%
Appearance	Off white  to white powder	white powder r
Odor/Tast	Characteristic odor and Taste	Characteristic odor and Taste
Mesh	100% pass 80 mesh	100mesh
Loss on drying	1.0%	0.37%
Ash	1.0%	0.41%
Heavy metals	10ppm	5.6 ppm
As	2ppm	0.27ppm
Lead	2ppm	0.50ppm
Microbiological control
Total Plate Count	1000cfu/g	267cfu/g
Yeast & mold	100cfu/g	39 cfu/g
Salmonella	Negative	Negative
E.Coli	Negative	Negative
Conclusion	Conformed with in-house standard
Storage	Cool, Darkness & Dry
Shelf life	2 years when properly stored.