質(zhì)量標準 Specifications
外觀/earance
White crystals powder
砷/ Arsenic
≤3ppm
含量/Assay
98.0~102.0 %
硫酸鹽Sulfates
15.5-16.5 %
pH
3.0-5.0
大腸埃希菌/ E.Coli
Negative
比旋度/Specific Rotaion
+47°~+53°
沙門氏菌/ Salmonella
灼燒殘渣/ Rsidue on ignition
26.5-31.0 %
需氧菌總數(shù)/ Total aerobic bacteria count
≤1000cfu/g
干燥失重/ Loss on drying
≤1.0 %
酵母、霉菌/ Yeast and mold
≤100cfu/g
鉛/ Lead
≤10ppm
目數(shù)/Mesh
40/60/80/100mesh
USP/EP standard
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