Objavljen
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.
OBJAVLJEN
ISO 6636-1:1986
90.93
Odluka o potvrđivanju standarda
13. 1. 2022.
NAPUŠTEN
ISO/DIS 6636-1
Voće, povrće i proizvodi koji potiču od voća i povrća - Određivanje sadržaja cinka - Deo 1: Polarografska metoda
90.93 Odluka o potvrđivanju standarda