NMC Bilingual OSHA sign is the perfect way to alert your employees and guests when a hazard is present in your facility. These OSHA signs comply with OSHA 29 CFR 1910.145. Made of 0.050 thick polystyrene material. It is ideal for long lasting indoor and outdoor use. Mounting: yes. Good chemical resistance. Maximum temperature: 183 degrees F. Measures 10-inches length by 14-inches height. Legend "CAUTION DO NOT ENTER AUTHORIZED PERSONNEL ONLY".