ISO 15914:2004规定了用酶法测定动物饲料和动物饲料原料中总淀粉含量的方法。 该方法也适用于淀粉中淀粉的测定。 重要的是，样品基质中不存在导致340 nm处测量消光的成分。 该方法的分析范围为40 g/kg至1000 g/kg淀粉。标准程序适用于200 g/kg至1000 g/kg的范围。对于较低的范围（40 g/kg至200 g/kg），可使用另一种标准葡萄糖溶液和样品的稀释程序。

ISO 15914:2004 specifies a method for the enzymatic determination of the total starch content of animal feeding stuffs and raw materials for animal feeding stuffs. The method is also applicable to the determination of starch in starch. It is important that in the sample matrix no components are present which contribute to the measured extinction at 340 nm. The analytical range of the method is 40 g/kg to 1 000 g/kg starch. The standard procedure is applicable to the range 200 g/kg to 1000 g/kg. For the lower range, 40 g/kg to 200 g/kg, another dilution procedure for the standard glucose solution and samples can be used.