What are the safety standards for edge sharpness on marble outdoor trash cans?

When specifying marble outdoor trash cans for public spaces, edge sharpness represents a critical safety consideration. While no single global standard exclusively governs marble receptacle edges, several general safety principles and specific regulations apply. The Americans with Disabilities Act (ADA) Standards for Accessible Design require that sharp edges on elements in circulation paths be eliminated or configured to prevent injury. Industry best practices, often referencing standards like ANSI Z535.4 for environmental safety, typically mandate that exposed edges feature a minimum radius of 1/8 inch (3 mm) to be considered burnished or smooth. For marble trash cans, this means all external corners and rims should be honed or polished to a smooth, rounded profile that cannot cut skin or snag clothing. Manufacturers achieve this through water-jet cutting followed by edge profiling and mechanical polishing, which removes micro-fractures and creates a consistent, safe contour. Regular maintenance inspections should verify that edges remain undamaged and free from chips that could recreate hazardous sharp points, ensuring long-term public safety in parks, plazas, and streetscapes.