1 Scope This document stipulates the appearance, basic properties, content limits of heavy metals and specific elements, organic composition, biodegradability and other technical requirements for starch-based biodegradable plastics, describes the corresponding sampling and test methods, and stipulates inspection rules, Labeling, packaging, transportation and storage, etc. This document applies to starch-based biodegradable plastics. 2 Normative reference documents 3 Terms and definitions 4 Requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage