Foreword

This standard replaces GB 5413.34-2010 “National food safety standard Determination of acidity in milk and milk products”, GB/T 22427.9-2008 “Starch and derived products-Determination of acidity” and GB/T 5517-2010 “Inspection of grain and oils-Determination of acidity in grain and produce”.

Compared with GB 5413.34-2010, GB/T 22427.9-2008 and GB/T 5517-2010, the major changes of this standard are as follows:

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

——the determination methods of acidity in foods in GB 5413.34-2010, GB/T 22427.9-2008 and GB/T 5517-2010 have been combined in this standard.