Emergencies in the Chemistry Laboratory | ACS College Safety Video #6

Lab Safety: Emergency Preparedness and Response

Introduction to PPE and Lab Safety

• The personal protective equipment (PPE) used by actors in the video was chosen based on a risk assessment of chemicals involved in the experiment.

• The video focuses on methods for handling lab emergencies, assuming viewers have completed the first three steps of RAMP: recognize hazards, assess risks, and minimize risks.

Common Causes of Lab Emergencies

• Emergencies often arise from either known unsafe practices or ignorance of safety protocols; both scenarios are preventable with proper adherence to RAMP.

• Equipment failures or unexpected power outages can also lead to emergencies, emphasizing the need for preparedness.

Types of Lab Emergencies

Broken Glass

• While not typically classified as an emergency, broken glass poses sharp edge hazards. Isolate the area and inform your instructor for assistance.

• Clean up broken glass using a brush and dustpan; dispose of it in designated containers rather than regular waste bins.

Chemical Spills on People

• If exposed to hazardous chemicals, use an eye wash station immediately if chemicals contact your eyes; rinse for at least 15 minutes.

• For spills on skin, flush with water at a sink or safety shower; remove contaminated clothing if necessary.

Chemical Spills in the Lab

• Liquid spills can create slip hazards. Notify your instructor immediately; they will manage cleanup using spill kits.

• If trained, you may isolate spills by surrounding them with absorbent materials while ensuring others are informed.

Fire Safety in Labs

Understanding Fire Risks

• Fires are rare but pose significant risks when they occur. Prevention is key alongside preparation for response.

• The fire triangle consists of fuel sources (flammable substances), oxidizing agents (like oxygen), and ignition sources (flames or sparks).

Responding to Fires

• Small fires can be extinguished by covering them with a watch glass or large beaker to deprive them of oxygen.

• Larger fires require ABC-type fire extinguishers. Familiarize yourself with the PASS technique: Pull the pin, Aim at the base, Squeeze handle, Sweep along base.

Conclusion on Emergency Protocol Awareness

Emergency Preparedness in the Lab

Importance of Emergency Procedures

• In rare situations, lab evacuation may be necessary. If safe, turn off electrical equipment and gas burners, close the sash when working in a hood, and exit the lab promptly.

• Effective emergency response requires prior training and practice to ensure safety during mishaps. Many scientists have experienced lab accidents firsthand.

RAMP Steps for Safety

• Following the RAMP (Recognize, Assess, Minimize, Prepare) steps is crucial for minimizing harm to individuals and property during emergencies.