Published
The method consists is decomposing of organic matter by a dry or wet method and determing of the Zn + cation by a suitable spectrometer. For some liquid samples the determination may be carried out directly, without previous decomposition.
PUBLISHED
ISO 6636-2:1981
90.93
Standard confirmed
Jan 13, 2022
ABANDON
ISO/DIS 6636-2
Fruits, vegetables and derived products — Determination of zinc content — Part 2: Atomic absorption spectrometric method
90.93 Standard confirmed