ISO 6636-1:1986

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

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.

SDO:

ISO

Language:

English

ICS Codes:

67.080.01

Status:

Published

Publish date:

1986-04-23

Standard Number:

ISO 6636-1:1986