EN 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[使用:IP 189-190/2005]
Crude petroleum and liquid or solid petroleum products - Determination of desity or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:2004)