Principal Door Signs

MSA ammonia identification principal door signs are placed at all entrances to machinery rooms. Our identification signs are specifically designed to provide a clear hazard warning for employees in food processing plants, mills and cold storage facilities.

• Follows AS 1345-1995 standard for the identification of piping, valves and components.
• Signs come in 178 mm x 305 mm or 305 mm x 305 mm standard sizes, custom sizes are also available.

Contact us today to order products or learn more about MSA’s turnkey asset identification products and labeling services.