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ISO 6636-1:1986

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

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

PUBLISH DATE 1986
ISO 6636-1:1986

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: International Organization for Standardization
Document Number ISO 6636
Publication Date April 15, 1986
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 34/SC 3
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