CSLB C-46 Solar ContractorSafetyMedium
A solar installer is working on a commercial rooftop when they encounter a drum labeled with a corrosive hazard symbol and 'Sodium Hydroxide'. The drum appears to be leaking slightly. What is the IMMEDIATE and most appropriate action the installer should take?
- AImmediately evacuate the area, notify a supervisor, and prevent others from entering.
- BCarefully move the drum to a less trafficked area of the roof.
- CCover the spill with sand to neutralize it and then dispose of it.
- DAttempt to stop the leak with an absorbent pad and continue working.
Show answer & explanationAnswer & explanation
Correct answer: A. Immediately evacuate the area, notify a supervisor, and prevent others from entering.
Sodium hydroxide is a strong base and highly corrosive. Any leak, even slight, poses a significant chemical burn hazard. The immediate priority is to ensure personal safety by evacuating the area, reporting the incident to a supervisor, and preventing further exposure to others. Only trained personnel with appropriate PPE should attempt spill containment or cleanup.
Why the other options are wrong
- B. Moving a leaking drum of corrosive material increases the risk of further spill, exposure, and injury. It should only be done by trained personnel with appropriate precautions.
- C. Covering with sand is not neutralizing and attempting cleanup without training and PPE is unsafe. Proper disposal requires specific procedures for hazardous waste.
- D. Attempting to stop a leak of a corrosive substance without proper training and PPE is extremely dangerous and could lead to severe chemical burns.
Hazardous Material Spill Response (Initial)
The immediate initial response to a hazardous material spill, especially of corrosive substances, is to prioritize personal safety by evacuating, notifying authorities/supervisors, and isolating the area.
- Prioritize 'Protect Yourself First'.
- Evacuate the immediate area.
- Notify supervisor/emergency services.
- Prevent unauthorized entry to the spill zone.
- Do NOT attempt cleanup without proper training and PPE.
Memory trick: See the spill? Flee, call, and stand still!