Тезис

The method consists in homogenizing the product, followed by dilution and acidification of a test portion, extraction of the acid by diethyl ether, then alkaline re-extraction of this acid and purifying by oxidation using acidified potassium dichromate, determination of the acid with a suitable spectrophotometer. The method cannot be applied in the presence of p-chlorobenzoic acid and cinnamic acid, respectively.


Общая информация 

  • Текущий статус
     : Отозвано
    Дата публикации
     : 1978-05
  • Версия
     : 1
  • Технический комитет
     : ISO/TC 34/SC 3 Fruits and vegetables and their derived products
  • ICS
     :
    67.080.01 Fruits, vegetables and derived products in general

Жизненный цикл

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  2. Интернет-магазин
  3. Каталог стандартов
  4. ТК
  5. ISO/TC 34/SC 3
  6. ISO 5518:1978