ISO 16742:2014规定了标称顶部尺寸的细铁矿石取样的基本方法<；1毫米，与水混合形成泥浆。当材料呈软塑性时（约80%的固体取决于固体的粒径分布），细固体与水的比例非常高时，混合物被正确地称为糊状物。 ISO 16742:2014中所述的程序适用于在移动流中作为矿浆运输的铁矿石取样。这些水流可以自由下落，也可以被限制在管道、流槽、斜槽、螺旋槽或类似渠道中。

ISO 16742:2014 sets out the basic methods for sampling fine iron ore of nominal top size <1 mm that is mixed with water to form a slurry. At very high ratios of fine solids to water when the material assumes a soft plastic form (about 80 % solids depending on the particle size distribution of the solids), the mixture is correctly termed a paste. The procedures described in ISO 16742:2014 apply to sampling of iron ore that is transported in moving streams as a slurry. These streams can fall freely or be confined in pipes, launders, chutes, spirals, or similar channels.