This document specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of biodegradable polybutylene terephthalate-adipate resin (PBAT). This document applies to polybutylene terephthalate-adipate resin produced by direct polycondensation or chain extension method using terephthalic acid, adipic acid, and 1,4-butanediol as main raw materials.