Determination of acidic constituents in petroleum products and lubricants by potentiometric titration. The total acid number TAN is the quantity of base, expressed in milligrams of potassium hydroxide, that is required to neutralize all acidic constituents present in 1 g of sample. ChemTron Titroline 6000自動電位滴定儀 優(yōu)萊博 TitroLine 7500KF容量法卡式水份滴定儀 優(yōu)萊博 TitroLine 6000自動電位滴定儀