ISO 1241:1980 Essential oils; Determination of ester value after acetylation and evaluation of free alcohols and total alcohols content*, 1980-09-01 Update
ISO 1272:1973 Essential oils; Determination of phenols content
ISO 3793:1976 Essential oils; Estimation of primary and secondary free alcohols content by acetylation in pyridine
GOST 14618.8-1978 history
1978GOST 14618.5-1978 Essential oils, aromatics and their intermediates. Method of analysis by gas chromatography