Codes & Standards - Purchase
ISO 6636-1:1986
Fruits, vegetables and derived products -- Determination of zinc content -- Part 1: Polarographic method
SKU: iso_013054_105360
Published by ISO
Publication Year 1986
1 Edition
3 pages
Product Details
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.