International Organization for Standardization (ISO)
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ISO 1955:1982
Scope
The method consists in boiling a test portion, diluted or undiluted, and steam entrainment of the oils which are collected in a graduated tube; after cooling, direct reading from this tube of the volume of the oils separated from the destillate.
ISO 1955:1982 history
1982ISO 1955:1982 Citrus fruits and derived products; Determination of essential oils content (Reference method)