International Organization for Standardization (ISO)
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ISO 6636-2:1981
Scope
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.
ISO 6636-2:1981 history
1981ISO 6636-2:1981 Fruits, vegetables and derived products; Determination of zinc content; Part 2 : Atomic absorption spectrometric method