ISO 3838-2004 原油和液体或固体石油产品.密度或相对密度的测定.毛细管塞比重瓶和带刻度双毛细管比重瓶法

标准号：ISO 3838-2004
中文标准名称：原油和液体或固体石油产品.密度或相对密度的测定.毛细管塞比重瓶和带刻度双毛细管比重瓶法
英文标准名称：Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods
标准类型：E20;E30
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：E20;E30
国际标准分类号：75.080
适用范围：1 This International Standard specifies methods for the determination of the density or relative density of crude petroleum and of petroleum products handled as liquids. 2 The capillary-stoppered pyknometer method is also for use with solids and this method may also be used for coal tar products, including road tars, creosote and tar pitches, or for mixtures of these with petroleum products. This method is not suitable for the determination of the density or relative density of highly volatile liquids having Reid vapour pressures greater than 50 kPa according to ISO 3007 or having an initial boiling point below 40 ℃. 3 The graduated bicapillary pyknometer method is recommended for the accurate determination of the density or relative density of all except the more viscous products, and is particularly useful when only small amounts of samples are available. The method is restricted to liquids having Reid vapour pressures of 130 kPa or less according to ISO 3007 and having kinematic viscosities less than 50 mm