ISO 1041-1973 精油 冻点的测定

标准号：ISO 1041-1973
中文标准名称：精油 冻点的测定
英文标准名称：Essential oils; Determination of freezing point
标准类型：Y40
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Y40
国际标准分类号：71.100.60
适用范围：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.