BS ISO 19662:2018规定了一种测定牛奶脂肪含量的方法，即酸-丁基滴定法或“Gerber法”。适用于全脂牛奶和部分脱脂牛奶。它也适用于含有授权防腐剂（重铬酸钾、溴丙醇）的牛奶。它不适用于福尔马林牛奶，也不适用于经过均质处理的牛奶。交叉引用:ISO 48:2010ISO 707:2008ISO 5725-1:1994ISO 5725-2:1994购买本文件时可获得的所有当前修订版均包含在购买本文件中。

BS ISO 19662:2018 specifies a method, the acido-butyrometric or "Gerber", for determining the fat content of milk. It is applicable to whole milk and partially skimmed milk.It is also applicable to milk containing authorized preservatives (potassium dichromate, bronopol).It does not apply to formalin milk, nor to milks that have undergone a homogenisation treatment.Cross References:ISO 48:2010ISO 707:2008ISO 5725-1:1994ISO 5725-2:1994All current amendments available at time of purchase are included with the purchase of this document.