标准摘要
[中文适用范围]： 适用于产品，无论产品是否均质，也无论是否含有多磷酸。 指定通过在盐酸存在下沸腾来初步水解多磷酸。 磷酸的沉淀在丙酮存在下以磷钼酸喹啉的形式进行。 用过滤坩埚过滤，洗涤，干燥并称重沉淀物。 [外文原描述]： Applicable to products whether or not they are homogeneous and whether or not they contain polyphosphoric acids. Specifies preliminary hydrolysis of the polyphosphoric acids by boiling in the presence of hydrochloric acid. The precipitation of the phosphoric acid is carried out in the form of quinoline phosphomolybdate in the presence of acetone. Filtration by a filter crucible, washing, drying and weighing of the precipitate.
英文名称Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method