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ITEMS	STANDARD
Assay(drying basis)	98%-102%
Specification Rotation	70°-73°
PH value(2%.2.5)	3.0-5.0
Loss on drying	Less than1%
Chloride	16.2%-16.7%
Residue on lgnition	Less than0.1%
Organic volatile impurities	Meet requirement
Heavy Metal	Less than0.001%
Arsenic	Less than3ppm
Total aerobic microbial count	Less than500cfu/g
Yeas tmold	Less than100cfu/g
E.Coli	Negative
Salmonella	Negative
Distinction	Food grade
Appearance	Crystallion powder,white
Storage Condition	Cool and dry condition
Shelf life	2 years
conclusion	Conform to USP 27 requirement