No.ItemUnitStandard data 1Appearance----White crystal or powder,odorless and a little sweet 2Specific Rotation+52.0~53.5 degree 3Acidity ml1.2 max 4De-Equivalent%99.5 min 5Chloride%0.02 max 6Sulphate%0.02 max 7Insoluble matter in alcohol----clear 8Sulfite and soluble starch----yellow 9moisture%9.1 max 10Ash%0.2 max 11Iron%0.002 max 12Arsenic%0.0002 max 13LeadMg/kg0.5 max 14CopperMg/kg5.0 max 15PH value ----4.0-6.0 16Total plate countCfu/g10 max 17Salmonella ----Not exist 18ColiformsMpn/100g30 max 19Staphyloccocus aureus----Not exist 20Hg(Mercury)%None 21MouldsMpn/10g100 max 22YeastMpn/10g100 max