This standard specifies the product classification, structure and requirements, requirements, test methods, inspection rules, signs, packaging, transportation and storage of medium-sized rigid frame plastic boxes for dangerous goods. This standard applies to medium-sized rigid frame plastic boxes (hereinafter referred to as plastic boxes) composed of plastic inner receptacles (with high molecular weight high-density polyethylene as the main raw material), pallets and metal frames (hereinafter referred to as plastic boxes) for holding liquid chemicals or other materials. No more than 1250L.