Resin and Film of LDPE Extractable from Local and Imported Food Packages for US and China Compliance

摘要

Low molecular weight materials from low density polyethylene (LDPE) were detected and the results were compared with the legal regulations imposed by China and the United States of America. Four types of films were tested using ASTM D 5227 imposed by USA while two resin samples underwent a test according to the standard method GB/T 5009.58-2003 of China Regulation. Applicable legal compliance used was the U.S. Food and Drug Administration (USFDA) and China Food Hygiene Law. All LDPE grades from local manufacturers comply with US FDA CFR 177.152 Specification 2.1, 2.2 and 2.3 except for D2 grade which failed to meet the specification 2.2. For China Food Hygiene Law, C1, D1 and D2 samples failed to meet the specified standard. This study also highlighted the result obtain testing the resin and film for both compliance tests.