Normas ISO

Essential oils -- General guidance on chromatographic profiles-- Part 1: Preparation of chromatographic profiles for presentation in standards

Liquorice extracts (Glycyrrhiza glabra L.) -- Determination of glycyrrhizic acid content -- Method using high-performance liquid chromatography

Essential oils -- Determination of water content -- Karl Fischer method

Oil of turpentine, Iberian type (Pinus pinaster Sol.)

Oil of roots of lovage (Levisticum officinale Koch)

Essential oils -- General guidance on the determination of flashpoint