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Appearance    Yellow to Yellowish-Brown Powder
Odor    Characteristic
Taste    Characteristic
Particle size    95% pass through 80 mesh sieve
Loss on drying(3h at 105℃)    ＜5%
Ash    ＜5%
Acetone    ＜5000ppm
Total Heavy Metals    ＜20ppm
Lead    ＜2ppm
Arsenic    ＜2ppm
Silymarin(by UV)    ＞80%(UV)
Silybin&Isosilybin    ＞30%(HPLC)
Total bacterial count    Max.1000cfu/g
Yeast & Mould    Max.100cfu /g
Escherichia coli presence    Negative
Salmonella    Negative