These blue lab packs are ideal for storage of smaller non-damaged bottles, cans, carboys and 5 gallon pails containing non-leaking hazardous materials. These lab packs are made of blow molded, high density polyethylene that is chemical and weather resistant. Lab pack containers feature an operating temperature range of -30°F to 130°F. Plastic lab packs are nestable when not in use for compact storage. Includes metal lever-lock for secure lid attachment. Approved for use with Packing Groups I, II and III. Plastic lab pack containers are UN certified to HM-181 and pass the UL 94HB Flammability rating. FDA 21 CFR 177.1520 food grade quality. SPCC compliant. DOT 49 CFR 173.12 compliant.