本国际标准规定了一种高效液相色谱（HPLC）方法，用于测定动物饲料（包括含有柑橘果肉的饲料）中的黄曲霉毒素B1含量。 测定下限为1 mg/kg。 注1:本国际标准可适用于测定许多原材料和直接饲料的黄曲霉毒素B1含量，如玉米麸质、花生、棕榈仁、椰子、柑橘果肉、木薯、大豆、米糠、pollard、油菜籽、尼日尔籽和棉籽（见参考文献[1]和[2]）。然而，这些材料不包括在该方法的合作测试中。 注2:本国际标准也适用于黄曲霉毒素B1、B2、G1和G2总量的测定。 然而，该方法尚未通过协作测试对此参数进行验证。

This International Standard specifies a high-performance liquid chromatographic (HPLC) method for the determination of aflatoxin B1 content of animal feeding stuffs including those containing citrus pulp. The lower limit of determination is 1 mg/kg. NOTE 1 This International Standard may be applicable for the determination of the aflatoxin B1 content of a number of raw materials and straight feeding stuffs such as corn gluten, groundnut, palm kernel, copra, citrus pulp, tapioca, soya bean, rice bran, pollard, rape seed, niger seed and cotton seed (see references [1] and [2]). These materials were, however, not included in the collaborative testing of the method. NOTE 2 This International Standard may also be applicable for the determination of the content of the sum of the aflatoxins B1, B2, G1 and G2. However, the method has not been validated for this parameter by collaborative testing.