QB/T 2623.1-2003.Test methods of soaps Determination of free caustic alkali content in soaps. 范围 QB/...
QB/T 2623.1-2020 肥皂试验方法肥皂中游离苛性碱含量的测定
QB/T 2623.1-2020.Test methods of soaps-Determination of free caustic alkali content in soaps. QB/T 2...