ABSTRACT
The International Organisation for Standardization or ISO, defines Geranium oil as ‘The oil obtained by steam distillation of the fresh or slightly withered herbaceous parts of Pelargonium graveolens L’Heritier ex Aiton, Pelargonium roseum Willdenow and other undefined hybrids which have given rise to differing ecotypes in the various geographical areas’ (International standard 4731: 1972). The colour is various shades of amberyellow to greenish-yellow. The odour is given as characteristic of the origin, rose-like with a varying minty note.
