Attaching Equipment to Walls or Supports
Heavy or hazardous items that could collapse and create a danger or block emergency exits must be secured to the walls or floor by Operation and Technical Services. These items include shelving units, equipment racks, and tall file cabinets, distillation units, gas cylinders (attach at two heights, approximately one third and two thirds of the cylinder height), and cryogenic dewars which are taller than two and a half times their base diameters.
Any new apparatus should be constructed robustly and secured to supporting fixtures. If you need to route gas lines between apparatus mounted to different supports, the lines should either be made of a compatible material that is flexible, or have flexing joints if made of solid lines.
Modifying Shelves and Cabinets
Shelves holding chemical containers must have protective restraint devices to prevent chemical containers from being eluded the shelf.
Shelves above the floor level should have anti-earthquake matting or protective restraint device if used to hold heavy manuals, books, or equipment.
Cabinets used to store chemical containers should have a closure device to prevent the door from being shaken open.
Users should be:
- Ensuring there is clear access to exits, fire extinguishers, eyewash stations, and safety showers.
- Closing containers when not in use.
- Closing fume hood sashes when not in use.
- Maintaining good housekeeping, including not placing chemical containers on the floor.
- Not storing boxes or large items within 40 cm of the ceiling if the room has fire sprinklers.
References and sources for information from the relevant websites and documentation of different universities, NGOs and government agencies used in the preparation of this website are provided at references.