Foreword

This standard replaces GB 5413.19-2010 “Determination of free biotin in foods for infants and young children, milk and milk products”.

Compared with GB 5413.19-2010, the major changes of this standard are as follows:

——the name of standard has been revised to “National food safety standard Determination of biotin in foods”;

——the expression for preparation of standard curve tubes and test soultion tubes has been revised;

——the expression of determination procedures has been revised;

——the processing procedures for food such as cereals and potatoes, meat, fresh fruits and vegetables, algae test samples, eggs, beans, nuts, animal organ meat and fortified biotin have been added;

——the description of commonly used glassware in “Apparatus and Equipment” has been deleted.