ISO 24333:2009规定了通过手动或机械方式对谷物和谷物产品进行动态或静态取样，以评估其质量和状况的要求。 它适用于测定非均匀分布的污染物、不良物质以及通常均匀分布的参数（如用于评估质量或符合规范的参数）的取样。 它可以用来测定谷物中的昆虫。 它适用于抽样以评估大量转基因生物（GMO）的质量和状况，但不适用于确定非转基因产品中是否存在外源性转基因材料。 不适用于种子粒。

ISO 24333:2009 specifies requirements for the dynamic or static sampling, by manual or mechanical means, of cereals and cereal products, for assessment of their quality and condition. It is applicable to sampling for the determination of heterogeneously distributed contaminants, undesirable substances, and parameters usually homogeneously distributed like those used to assess quality or compliance with specification. It can be used to determine insects in a grain lot. It is applicable to sampling for assessment of the quality and condition of lots of genetically modified organisms (GMO) but is inappropriate for the determination of the presence of adventitious genetically modified material in non-GM product. It is not applicable to seed grain.