Laboratory Waste Management

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Questions and Answers

What is the primary purpose of maintaining clear passageways in laboratory exit floor plans?

  • To enhance the overall aesthetic of the laboratory
  • To facilitate efficient cleaning and maintenance activities
  • To provide a clear escape route in case of emergencies (correct)
  • To accommodate large equipment and instruments

Why is it essential to maintain sink traps and floor drains with water?

  • To enhance the functionality of the sinks
  • To prevent corrosion of the pipes
  • To prevent sewer gases from escaping into the laboratory (correct)
  • To facilitate the drainage of contaminated materials

What is the recommended frequency for cleaning the laboratory working area?

  • Once a week
  • Upon completion of tests or at the end of the working day (correct)
  • At the beginning of each working day
  • Once a month

Why is it important to return materials to their designated places after use?

<p>To facilitate the cleaning and maintenance of the laboratory (B)</p> Signup and view all the answers

What is the primary reason for placing bench apparatus away from edges?

<p>To prevent accidents and injuries (C)</p> Signup and view all the answers

What solution is used to clean the ultrasonic water bath?

<p>Hypochlorite (bleach) solution (C)</p> Signup and view all the answers

How are the racks and tubes typically cleaned on a weekly basis?

<p>By immersing them in 5% Lysol and allowing them to air-dry (B)</p> Signup and view all the answers

Who should be involved in the implementation of the waste management plan?

<p>The laboratory aide and other trained personnel (B)</p> Signup and view all the answers

What is the purpose of the Laboratory Waste Management Plan?

<p>To minimize the potential risk of exposure to chemical, radioactive, and biological hazards (D)</p> Signup and view all the answers

What is typically included in the waste management component?

<p>10 components, including types of wastes, responsibilities, management authorization, and record-keeping (A)</p> Signup and view all the answers

What is the purpose of wearing personal protective equipment (PPE) during the daily cleaning procedure in the laboratory?

<p>To protect the individual from chemical exposure and splashes (A)</p> Signup and view all the answers

What is the correct ratio of sodium hypochlorite solution to water to prepare a 1% sodium hypochlorite solution?

<p>10 mL of sodium hypochlorite solution to 1000 mL of water (D)</p> Signup and view all the answers

What is the purpose of removing materials that prevent thorough cleaning during the daily cleaning procedure?

<p>To ensure the cleaning solution reaches all surfaces (D)</p> Signup and view all the answers

What is the correct method for preparing 1 liter of 5% Lysol solution?

<p>Add 450 mL of 12% Lysol to 550 mL of distilled water (A)</p> Signup and view all the answers

What is the purpose of labeling the cleaning reagents with the name and date of preparation?

<p>To prevent the use of expired reagents (C)</p> Signup and view all the answers

What should be done with the containers after labeling and filling with waste materials?

<p>Cap them after use and reclose immediately if a funnel is used (A)</p> Signup and view all the answers

Why should glass containers be avoided in certain situations?

<p>Because they may freeze and shatter (B)</p> Signup and view all the answers

What should be done with solid chemical waste prior to disposal?

<p>Place them in a labeled container (B)</p> Signup and view all the answers

What should be done with unwanted reagents?

<p>Share or recycle them if possible (C)</p> Signup and view all the answers

What is the primary consideration when disposing of waste materials?

<p>Safety (B)</p> Signup and view all the answers

What should laboratory personnel do before starting a laboratory activity?

<p>Have a clear plan for disposal of hazardous and non-hazardous materials (B)</p> Signup and view all the answers

What should be done with incompatible waste materials?

<p>Segregate them according to their disposal methods (B)</p> Signup and view all the answers

Who should be responsible for maintaining the satellite accumulation area?

<p>Competent laboratory personnel (C)</p> Signup and view all the answers

Why is it important to observe the compatibility of containers and waste contents?

<p>To prevent reactions between the container and waste contents (C)</p> Signup and view all the answers

What should be done with waste materials in the satellite accumulation area?

<p>Keep them closed to prevent contamination (D)</p> Signup and view all the answers

What is the recommended step after autoclaving contaminated glassware?

<p>Use hot air drying racks to accelerate the drying process (B)</p> Signup and view all the answers

Why should alkaline liquids not be stored in flasks?

<p>Because the stoppers or stopcocks may stick (B)</p> Signup and view all the answers

What is the purpose of examining glassware for damage before cleaning?

<p>To discard any cracked or broken glassware (B)</p> Signup and view all the answers

What is the role of the laboratory aide in maintaining a clean laboratory environment?

<p>To perform a bulk of the cleaning tasks (D)</p> Signup and view all the answers

Why is it important to clean and remove residue from glassware?

<p>To prevent contamination (A)</p> Signup and view all the answers

What is the primary goal of the green chemistry tier in the Laboratory Waste Management Plan?

<p>To reduce the environmental impact of waste disposal (A)</p> Signup and view all the answers

Which tier of the Laboratory Waste Management Plan involves recycling chemicals and recovering energy from waste?

<p>Recycle (C)</p> Signup and view all the answers

What is the primary purpose of the Laboratory Waste Management Plan?

<p>To minimize the potential hazardous risk of waste disposal (B)</p> Signup and view all the answers

Which of the following is NOT a tier of the Laboratory Waste Management Plan?

<p>Disposal (C)</p> Signup and view all the answers

What is the primary focus of the Laboratory Waste Management Plan?

<p>Minimizing the potential hazardous risk of waste disposal (B)</p> Signup and view all the answers

Which tier of the Laboratory Waste Management Plan involves reducing hazards?

<p>Reuse, redistribute, and reduce (D)</p> Signup and view all the answers

What is the purpose of the Laboratory Waste Management Plan in terms of environmental impact?

<p>To minimize the environmental impact of waste disposal (C)</p> Signup and view all the answers

Which of the following is a component of the Laboratory Waste Management Plan?

<p>All of the above (D)</p> Signup and view all the answers

What is the last step in the Laboratory Waste Management Plan's strategic hierarchy?

<p>Recycle (D)</p> Signup and view all the answers

How often should the Laboratory Waste Management Plan be reviewed and updated?

<p>At least annually (A)</p> Signup and view all the answers

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