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See Chinese contents: GB/T 12456-2008 GB/T 12456-2008: Determination of total acid in foods
This standard specifies the analytical procedures for the determination of total acid in food by acid-base titration and pH potential method. This standard applies to the determination of total acid in foods such as fruit and vegetable products, beverages, dairy products, alcoholic beverage, bee products, starch products, cereal products, condiments. The acid-base titration method of this standard is not applicable to colored or turbid opaque test solutions.
