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Homepage>ISO Standards>ISO 6636-1:1986-Fruits, vegetables and derived products — Determination of zinc content-Part 1: Polarographic method
download between 0-24 hoursReleased: 1986
ISO 6636-1:1986-Fruits, vegetables and derived products — Determination of zinc content-Part 1: Polarographic method

ISO 6636-1:1986

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

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Standard´s number:ISO 6636-1:1986
Pages:3
Edition:1
Released:1986
DESCRIPTION

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.
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