Reference number
ISO 1041:1973
ISO 1041:1973
© ISO 2025
International Standard
ISO 1041:1973
Essential oils — Determination of freezing point
Edition 1
1973-12
1973-12
ISO 1041:1973
5518
Published
(Edition 1, 1973)
This publication was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
The determination consists in slow and progressive cooling of the essential oil and observation of the variations in temperature as the oil passes from the liquid to the solid state. The apparatur for determination of freezing point consists of a wide-mouthed container of about 500 ml capacity, provided with a bored cork or rubber stopper into which a stout-walled test tube is inserted. Another smaller test tube is fitted into the stout-walled test tube by means of another bored cork or rubber stopper. Into the smaller test tube a thermometer is inserted.