Content

Foreword

This standard replaces GB/T 5009.100-2003 “Method for analysis of hygienic standard of products of foamed polystyrene for food packaging”.

Compared with GB/T 5009.100-2003, the major changes of this standard are as follows:

——the name of this standard has been revised to “National food safety standard Food contact materials and articles Determination of difluorodichloromethane in foamed polystyrene products”;

——the packed chromatographic column has been changed to capillary chromatographic column;

——the sensitivity of the method has been increased by decreasing the limit of detection and the limit of quantification.