ISO 15169:2003给出了混合储罐测量系统（HTMS）的选择、安装、调试、校准和验证指南，用于测量财政或监管转移应用中储存石油和石油产品的储罐中的液位、静态质量、观察和标准体积、观察和参考密度。由于由用户决定将哪些测量值（即体积或质量或两者）用于监护转移目的，本国际标准包括不确定度分析，并举例说明，以使用户能够选择HTM的正确组件，以满足预期应用。 ISO 15169:2003适用于储存里德蒸汽压（RVP）低于103,42 kPa的液态烃的固定立式圆筒形储罐。 ISO 15169:2003不适用于压力罐或海上应用。

ISO 15169:2003 gives guidance on the selection, installation, commissioning, calibration and verification of hybrid tank measurement systems (HTMS) for the measurement of level, static mass, observed and standard volume, and observed and reference density in tanks storing petroleum and petroleum products in fiscal or custody transfer application. As it is a matter for the user to decide which measurements (i.e. volume, or mass or both) are used for custody transfer purposes, this International Standard includes an uncertainty analysis, with examples, to enable users to select the correct components of an HTMS to address the intended application. ISO 15169:2003 is applicable to stationary, vertical cylindrical tanks storing liquid hydrocarbons with a Reid Vapour Pressure (RVP) below 103,42 kPa. ISO 15169:2003 is not applicable to pressurized tanks or marine applications.