ISO 14244:2014规定了测定豆粕、菜籽粕和向日葵丸中氢氧化钾溶液中可溶性蛋白质的方法，然后使用ISO 5983-1和ISO 5983-2规定的凯氏定氮法进行分析。

ISO 14244:2014 specifies a method for the determination of soluble proteins in potassium hydroxide solution in soya meals, rapeseed meals and sunflower pellets, which are then assayed using the Kjeldahl method as specified in ISO 5983-1 and ISO 5983-2.