ISO 1578:1975 PDF
Tea — Determination of alkalinity of water-soluble ash
Tea — Determination of alkalinity of water-soluble ash
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 декабря 1975 г.
- Издание:
- ISO IS 1578 edition 1 version 1
- ICS:
- 67.140.10
The method consists in titrating of the filtrate from the determination of water-soluble ash, whith standard hydrochloric acid solution, using methyl orange as indicator.
Abstract
Overview
ISO 1578:1975 specifies a standardized method for determining the alkalinity of water-soluble ash in tea. This international standard, published by the International Organization for Standardization (ISO), outlines a precise titration procedure using a standard hydrochloric acid solution and methyl orange as an indicator. The method ensures consistency and reliability in chemical analysis related to tea quality and composition, vital for agricultural, food safety, and analytical laboratories worldwide.
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