Laboratory Safety and Risk Management

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Questions and Answers

Which of the following is the primary purpose of laboratory safety procedures?

  • To make the lab look more organized
  • To increase the speed of experiments
  • To minimize risk to workers and protect property (correct)
  • To reduce the cost of materials

Why is it important to avoid rushing when conducting experiments in a laboratory?

  • To have more time to socialize with colleagues.
  • To ensure the lab is clean for the next person.
  • To prolong the experiment and gather more data.
  • Rushing increases the likelihood of mistakes and potential harm. (correct)

During an experiment, a small amount of toxic gas is released due to a faulty setup. What immediate action should be taken?

  • Ignore the leak if it's not immediately irritating.
  • Quickly neutralize the gas with another chemical.
  • Evacuate the area and report the leak to the supervisor. (correct)
  • Open all windows and continue with the experiment.

Which of the following practices is essential for minimizing risks associated with chemical use in a lab?

<p>Reading chemical names and instructions on containers. (B)</p> Signup and view all the answers

Which of the following scenarios requires the immediate use of personal protective equipment (PPE)?

<p>Preparing reagents for an experiment. (D)</p> Signup and view all the answers

Why is it important to make a plan of action before starting an experiment?

<p>To clearly define goals and minimize potential errors. (C)</p> Signup and view all the answers

What should you do if you accidentally spill a corrosive chemical on your skin?

<p>Immediately wash the affected area with large amounts of water. (D)</p> Signup and view all the answers

Which of the following is a key reason not to work alone in a laboratory?

<p>To have assistance in case of an accident or emergency. (D)</p> Signup and view all the answers

You notice a frayed electrical cord on a piece of lab equipment. What should be your immediate response?

<p>Report the issue and stop using the equipment. (A)</p> Signup and view all the answers

What specific information should be prioritized when reading experiment instructions before starting?

<p>The potential risks and safety precautions. (C)</p> Signup and view all the answers

You are unsure about the correct disposal method for a chemical waste product. What should you do?

<p>Consult the safety data sheet (SDS) or ask a supervisor. (A)</p> Signup and view all the answers

What is the MOST important reason for using designated tubes for specific experiment steps?

<p>To prevent cross-contamination and maintain experimental integrity. (C)</p> Signup and view all the answers

Which scenario poses the HIGHEST risk in a chemical laboratory environment?

<p>Heating a flammable substance near an open flame. (A)</p> Signup and view all the answers

How does maintaining a clean and uncluttered workspace contribute to laboratory safety?

<p>It reduces the risk of accidents and contamination. (D)</p> Signup and view all the answers

In what situation is it acceptable to remove your safety goggles in the lab?

<p>Never, unless explicitly instructed by a supervisor. (A)</p> Signup and view all the answers

During an experiment, you accidentally break a glass container. What is the FIRST step you should take?

<p>Inform your supervisor or lab assistant about the breakage. (A)</p> Signup and view all the answers

Why is it UNSAFE to eat or drink in the laboratory?

<p>Food and drinks can become contaminated by chemicals. (C)</p> Signup and view all the answers

How should you adjust your plans if you realize that an experiment is riskier than initially anticipated?

<p>Consult with a supervisor and reassess safety measures. (B)</p> Signup and view all the answers

Which statement accurately describes the definition of 'Safety in Laboratories'?

<p>A set of procedures designed to protect laboratory workers and property. (D)</p> Signup and view all the answers

How can you ensure that flames remain controlled and safe during an experiment involving flammable materials?

<p>Ensure the flame is shielded and materials are kept at a safe distance. (A)</p> Signup and view all the answers

Flashcards

Laboratory Safety Definition

A set of procedures and rules designed to protect laboratory workers from injury, property from damage, and provide safe working environments.

Main Lab Hazards

Fires, skin/eye exposure to chemicals, toxic gas leaks, glass fragments, electric shock, and hot objects.

General Lab Rules

Plan your work, don't rush, read the experiment, check chemical names, wear PPE, no food/drink, keep flames away, use correct tubes, avoid working alone.

Personal Protective Equipment (PPE)

Includes a lab coat, face mask, gloves, and protective glasses.

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Radioactive Symbol

Sign indicating substance emits ionizing radiation.

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Biohazard Symbol

Sign indicating the substance represents a biological risk to organisms.

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Harmful Symbol

Sign indicating something harmful

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Explosive Symbol

Sign indicating that the substance can explode.

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Corrosive symbol

Sign indicating substance is corrosive to things it contacts

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Dangerous for the environment symbol

Sign indicating a environmental hazard to the environment

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Flammable symbol

Sign indicating substance is easily ignitable

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Toxic Symbol

Sign indicating substance can cause death or acute toxic effects after inhalation, swallowing or skin contact.

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Oxidizing symbol

Sign indicating substance is highly reactive

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Study Notes

  • Safety in laboratories involves procedures and rules to protect workers from injury and property from damage, ensuring safe working conditions.

Main Hazards in Chemical Laboratories

  • Fires can start from preparations or experiments.
  • Skin and eyes can be burned or exposed to toxic chemicals.
  • Toxic or irritating gases can leak.
  • Exposure may occur to glass residues or fragments.
  • Risk of contact with electric current.
  • Risk of contact with hot objects.

General Rules for Risk Management in Laboratories

  • Plan your lab work and define your objectives before starting.
  • Avoid rushing, as it can lead to harmful mistakes.
  • Carefully read the experiment instructions, paying attention to the risks.
  • Check and read chemical names on bottles and containers.
  • Wear PPE, including a lab coat, face mask, gloves, and protective glasses, before entering.
  • Eating and drinking is prohibited in the lab.
  • Keep flames away from your workspace.
  • Use appropriate tubes for the experiment.
  • Avoid working alone or outside of regular hours.

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