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ISO 6636-1:1986

Fruits, vegetables and derived products — Determination of zinc content — Part 1: Polarographic method ISO 6636-1:1986

Publication date:   Apr 24, 1986

General information

90.93 Standard confirmed   Jan 13, 2022

ISO

ISO/TC 34/SC 3 Fruits and vegetables and their derived products

International Standard

67.080.01   Fruits, vegetables and derived products in general

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Published

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Scope

The method consists in ashing of a test portion in a muffle furnace at 525+25 C, treating the ash obtained with hydrochloric acid, neutralizing with ammonia solution and determing of the value using an ammonia/ammonium chloride electrolyte. Copper, tin, lead and cadmium do not interfere.

Life cycle

NOW

PUBLISHED
ISO 6636-1:1986
90.93 Standard confirmed
Jan 13, 2022

REVISED BY

ABANDON
ISO/DIS 6636-1