ISO 1953:2015规定了使用孔径在125 mm和45μm之间的试验筛，通过人工筛分（湿筛或干筛）进行煤炭粒度分析的参考方法。附录A中给出了取样指南。 本国际标准适用于所有硬煤。不适用于焦炭或其他制造燃料。 如果煤粉已被研磨，以便高比例通过最小孔径的试验筛，则本国际标准中描述的方法将仅确定过大的百分比。

ISO 1953:2015 specifies reference methods for the size analysis of coal by manual sieving (wet or dry), using test sieves of aperture sizes between 125 mm and 45 μm. A guide to sampling is given in Annex A. This International Standard is applicable to all hard coals. It is not applicable to coke or other manufactured fuels. In the case of pulverized coal which has been ground so that a high proportion passes through the test sieve of smallest aperture size, the methods described in this International Standard will determine only the percentage oversize.