NMC Adhesive pressure sensitive vinyl OSHA sign. OSHA signs are the perfect way to alert your employees and guests when a hazard is present in your facility. Keep your facility safe with an OSHA regulated sign. It prevent an accident. These OSHA signs comply with OSHA 29 CFR 1910.145. Mounting: yes. Good chemical resistance. Header "CAUTION" and legend "DO NOT OPEN ALARM WILL SOUND". 0.004 material has pressure sensitive adhesive backing and is flexible, which allows for mounting on smooth, curved or irregular surfaces. The material is long-lasting for indoor and outdoor labeling. Maximum temperature: 178 degrees F. Measures 10-inches length by 7-inches height.