ISO 6638-2:1984
Fruit and vegetable products — Determination of formic acid content — Part 2: Routine method
Fruit and vegetable products — Determination of formic acid content — Part 2: Routine method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 5
- Дата публикации:
- 1 октября 1984 г.
- Издание:
- ISO IS 6638 edition 1 version 1
- ICS:
- 67.080.01
The method consists in quantitative entraining by steam of the acid present in a test portion, determing of the amount of iodine equivalent to the amount of bromine consumed by the acid in the distillate, by titration with sodium thiosulfate standard volumetric solution.
Abstract
Overview
ISO 6638-2:1984 specifies a for determining in . The method is based on quantitative entrainment of formic acid by steam from a prepared test portion, followed by an indirect titration: the acid in the distillate reacts to consume bromine, the amount of iodine equivalent to the bromine consumed is liberated, and the liberated iodine is titrated with a standard solution.
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