本程序适用于灌装过程中的原油或精炼产品，或已装在桶或可运输或固定罐中的产品。由于批次的不均匀性，建议在填充期间采用取样。鉴于产品的吸湿性，规定了特殊的预防措施。其原理是在整个填充过程中，每隔一定的时间进行等量取样。混合这些连续样品，均质，然后提取实验室样品。

The procedures are applicable to crude or refined products in the course of filling, or to products already contained in drums or in transportable or fixed tanks. Owing to the heterogeneity of the lots it is recommended to adopt the sampling during filling. Specifies particular precautions in view of the very hygroscopic nature of the product. The principle consists in samplings, at regular intervals, of equal quantities throughout filling. Mixing of these successive samples, homogenization and then taking the laboratory samples.