ISO 11794:2017规定了与液体（通常是水）混合以形成泥浆的颗粒材料取样的基本方法。在工业和采矿及选矿文献中，矿浆也称为矿浆，但ISO 11794:2017中未使用该术语。如果细颗粒固体与液体的比例非常高，且材料呈软塑性，则正确地将混合物称为糊状物。ISO 11794:2017未涵盖糊料取样。 ISO 11794:2017中描述的程序适用于在流动流中作为泥浆运输的颗粒材料的取样，但不适用于加压泥浆。 这些水流可以自由下落，也可以被限制在管道、流槽、水槽、水闸、螺旋或类似渠道中。不建议在静止状态下对泥浆进行取样，例如在保温容器或大坝中沉淀或甚至搅拌良好的泥浆，ISO 11794:2017中未涵盖。 ISO 11794:2017描述了旨在提供代表泥浆固体和受检泥浆粒度分布的样品的程序。排干流体的泥浆样品并测量流体体积后，泥浆中所含颗粒材料的潮湿样品可用于干燥（如果需要）并以无偏方式和已知精度测量一个或多个特性。 通过化学分析、物理测试或两者兼而有之来测量特性。 所述取样方法适用于需要检查以验证是否符合产品规范、确定特征值作为贸易伙伴之间结算的基础或估计描述系统或程序的一组平均特征和方差的泥浆。 如果流速不太高，与其他取样程序进行比较的参考方法是，在指定的时间或体积间隔内，将整个气流转移到容器中。 该方法与ISO 12743中描述的停止传送带方法相对应。

ISO 11794:2017 sets out the basic methods for sampling particulate material that is mixed with a liquid, usually water, to form a slurry. In industry and in the mining and mineral processing literature, slurry is also referred to as pulp, but this term is not used in ISO 11794:2017. At very high ratios of fine particulate solids to liquids where material assumes a soft plastic form, the mixture is correctly termed as a paste. Sampling of pastes is not covered in ISO 11794:2017. The procedures described in ISO 11794:2017 apply to sampling of particulate materials that are transported in moving streams as slurries, but not pressurized slurries. These streams may fall freely or be confined in pipes, launders, flumes, sluices, spirals or similar channels. Sampling of slurries in stationary situations, such as a settled or even a well-stirred slurry in a holding vessel or dam, is not recommended and is not covered in ISO 11794:2017. ISO 11794:2017 describes procedures that are designed to provide samples representative of the slurry solids and particle-size distribution of the slurry under examination. After draining the slurry sample of fluid and measuring the fluid volume, damp samples of the contained particulate material in the slurry are available for drying (if required) and measurement of one or more characteristics in an unbiased manner and with a known degree of precision. The characteristics are measured by chemical analysis, physical testing or both. The sampling methods described are applicable to slurries that require inspection to verify compliance with product specifications, determination of the value of a characteristic as a basis for settlement between trading partners or estimation of a set of average characteristics and variances that describes a system or procedure. Provided that flow rates are not too high, the reference method against which other sampling procedures are compared is one where the entire stream is diverted into a vessel for a specified time or volume interval. This method corresponds to the stopped-belt method described in ISO 12743.