Active standard | Published: 01/11/1981

ISO 6632:1981

Fruits, vegetables and derived products — Determination of volatile acidity
(Fruits, légumes et produits dérivés — Détermination de l´acidité volatile)

Available languages: English, French

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Detail information

Designation: ISO 6632:1981

Publication date: 01/11/1981

Pages: 9

Country: International technical standard

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Anotation

Description / Abstract: The method consists in acidifying a test portion with tartaric acid, entraining the volatile acids by steam distillation and titrating the distillate with standard volumetric sodium hydroxide solution in the presence of phenolphthalein as an indicator. The method is applicable to all fresh products, to products preserved without chemical preservatives, and to products to which sulphur dioxide has been added.

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