ISO 3170:2004规定了从固定罐、轨道车、公路车辆、船舶和驳船、桶和罐或管道中泵送的液体中获取液体或半液体碳氢化合物、罐残留物和沉积物样品的手动方法。 ISO 3170:2004适用于石油产品、原油和中间产品的取样，这些产品储存在大气压或接近大气压的储罐中，或通过管道输送，并在接近环境温度高达200摄氏度的条件下作为液体处理。 规定的取样程序不适用于其他国际标准所规定的特殊石油产品的取样，如电气绝缘油（IEC 60475）、液化石油气（ISO 4257）、液化天然气（ISO 8943）和气体天然气（ISO 10715）。

ISO 3170:2004 specifies the manual methods to be used for obtaining samples of liquid or semi-liquid hydrocarbons, tank residues and deposits from fixed tanks, railcars, road vehicles, ships and barges, drums and cans, or from liquids being pumped in pipelines. ISO 3170:2004 applies to the sampling of petroleum products, crude oils and intermediate products, which are stored in tanks at or near atmospheric pressure, or transferred by pipelines, and are handled as liquids at temperatures from near ambient up to 200 degrees Celsius. The sampling procedures specified are not intended for the sampling of special petroleum products which are the subject of other International Standards, such as electrical insulating oils (IEC 60475), liquefied petroleum gases (ISO 4257), liquefied natural gases (ISO 8943) and gaseous natural gases (ISO 10715).