Final answer:
Fixed industrial stair platform doors/gates are designed for safety and security, adhering to regulations that prevent accidents and ensure safe egress. They may have features like self-closing mechanisms and specific strength standards, and must follow local safety codes or OSHA guidelines in the U.S.
Step-by-step explanation:
The requirements for fixed industrial stair platform doors or gates generally focus on ensuring the safety and security of individuals using these structures. While the question references the function of airport security gates that detect metals and indicate their height above the floor, industrial stair platform doors or gates may have different requirements.
These typically adhere to regulations aimed at preventing accidents and facilitating safe egress in industrial environments. Requirements might include having self-closing mechanisms, meeting certain dimensional standards, and providing sufficient strength to withstand expected loads. In many jurisdictions, these requirements are stipulated by occupational safety and health regulations or building codes. However, for specific standards and requirements, it would be important to consult the relevant local codes or guidelines from entities such as the Occupational Safety and Health Administration (OSHA) in the United States.