Podcast
Questions and Answers
In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station?
In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station?
- Until the irritation is gone
- 30 minutes
- 5 minutes
- 15 minutes (correct)
Move to the safety shower if you spill hazardous chemicals on your ________. Stand under the shower and _________ the lever. Remove clothing and continue flushing the area for _________.
Move to the safety shower if you spill hazardous chemicals on your ________. Stand under the shower and _________ the lever. Remove clothing and continue flushing the area for _________.
skin or clothing...pull...15 minutes
Identify the equipment best suited for extinguishing each type of fire:
Identify the equipment best suited for extinguishing each type of fire:
Small benchtop fire = Overturned beaker Large fire on floor = Fire extinguisher Clothing fire = Fire blanket
Identify the precautions to take with exits in the lab.
Identify the precautions to take with exits in the lab.
Which signs are typically posted in areas of active lab work?
Which signs are typically posted in areas of active lab work?
What is the main precaution to take if a Gas Cylinder sign is present in the lab?
What is the main precaution to take if a Gas Cylinder sign is present in the lab?
Identify the step that is NOT recommended when responding to an emergency.
Identify the step that is NOT recommended when responding to an emergency.
What is the first step for response to an emergency situation?
What is the first step for response to an emergency situation?
When an alarm sounds in the laboratory, it is important to respond _________ and remain _________. Listen for any other instructions, turn off any _________ in use, and be prepared to leave immediately.
When an alarm sounds in the laboratory, it is important to respond _________ and remain _________. Listen for any other instructions, turn off any _________ in use, and be prepared to leave immediately.
In lab, you may need to evaluate the odor or smell of a chemical. What is the best way to smell a chemical sample?
In lab, you may need to evaluate the odor or smell of a chemical. What is the best way to smell a chemical sample?
A student removes a chemical sample from a reagent bottle to be used in an experiment. What should he do with any excess chemical remaining from this sample after the experiment is complete?
A student removes a chemical sample from a reagent bottle to be used in an experiment. What should he do with any excess chemical remaining from this sample after the experiment is complete?
Using the letters on the image, identify the significance of each section on the NFPA diamond.
Using the letters on the image, identify the significance of each section on the NFPA diamond.
Most chemicals can be cleaned up with a general spill kit, but a few chemicals require specialized spill procedures. For each substance listed, determine whether a general spill kit is sufficient or if a specialized spill kit is needed:
Most chemicals can be cleaned up with a general spill kit, but a few chemicals require specialized spill procedures. For each substance listed, determine whether a general spill kit is sufficient or if a specialized spill kit is needed:
How should spill cleaning materials be discarded?
How should spill cleaning materials be discarded?
Fill in the words to complete each step in liquid spill cleanup.
Fill in the words to complete each step in liquid spill cleanup.
Review the Safety Data Sheet (SDS) for potassium hydroxide, then identify the best course of action for each type of chemical exposure.
Review the Safety Data Sheet (SDS) for potassium hydroxide, then identify the best course of action for each type of chemical exposure.
When should lab participants look at the Safety Data Sheet (SDS) of a substance?
When should lab participants look at the Safety Data Sheet (SDS) of a substance?
What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?
What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?
If you drop or break glassware in lab, first ________. Then, _______. Finally, place all that material into the ________.
If you drop or break glassware in lab, first ________. Then, _______. Finally, place all that material into the ________.
Using the letters on the image, identify each component of the liquid waste set-up.
Using the letters on the image, identify each component of the liquid waste set-up.
Determine where to dispose of each type of waste.
Determine where to dispose of each type of waste.
Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?
Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?
What information does not need to be included on a chemical waste label?
What information does not need to be included on a chemical waste label?
What are the best practices for safely handling waste in the lab?
What are the best practices for safely handling waste in the lab?
When should you start a new chemical waste container in the lab?
When should you start a new chemical waste container in the lab?
Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ________, and then, _________. Then insert _________ between the interior edge of the second glove and the skin, and remove the second glove.
Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ________, and then, _________. Then insert _________ between the interior edge of the second glove and the skin, and remove the second glove.
Determine the best way to deal with each of the following items that may dangle into the way during lab work.
Determine the best way to deal with each of the following items that may dangle into the way during lab work.
Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once.
Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once.
What should you do every time before you leave the lab?
What should you do every time before you leave the lab?
Determine which items of personal protective equipment (PPE) you will likely use in a general chemistry lab.
Determine which items of personal protective equipment (PPE) you will likely use in a general chemistry lab.
Determine when to put on disposable gloves for work in the lab.
Determine when to put on disposable gloves for work in the lab.
Determine the safest option in the lab if you need your vision to be corrected.
Determine the safest option in the lab if you need your vision to be corrected.
Determine when you should remove your goggles in the lab room.
Determine when you should remove your goggles in the lab room.
Chewing gum is okay in the lab as long as you don't blow bubbles.
Chewing gum is okay in the lab as long as you don't blow bubbles.
Tobacco products of all kinds are prohibited in the lab.
Tobacco products of all kinds are prohibited in the lab.
Beverages are allowed in the lab as long as they are in containers with lids.
Beverages are allowed in the lab as long as they are in containers with lids.
Food items should not be brought into the lab.
Food items should not be brought into the lab.
Under what conditions should a student inform the instructor of a lab injury?
Under what conditions should a student inform the instructor of a lab injury?
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Study Notes
Emergency Procedures
- Eyes should be flushed at eyewash station for 15 minutes after chemical contact.
- If hazardous chemicals spill on skin or clothing, move to the safety shower, pull the lever, and continue flushing for 15 minutes.
- In case of an emergency, remain calm, gather information, and assess the situation before taking action.
- When alarm sounds, respond calmly and quietly, listen for instructions, and turn off any equipment in use.
Fire Safety Equipment
- Small benchtop fire should be dealt with using an overturned beaker.
- A fire extinguisher is best for large fires on the floor.
- Utilize a fire blanket for clothing fires.
Laboratory Safety Precautions
- Locate exits before starting lab work; do not block doors with EXIT signs.
- Signs for active lab work include PPE signs, chemical storage signs, and safety equipment signs.
- Always conduct a visual check of any gas cylinder sign, ensuring it is restrained.
Handling Chemicals and Waste
- Excess chemicals after use should be checked for others' interest; if not needed, discard in the proper waste container.
- Use a general spill kit for common chemicals; others like mercury and hydrofluoric acid require specialized procedures.
- Cleaning materials from spills should be sealed in a labeled plastic bag and placed in a solid waste container.
Personal Protective Equipment (PPE)
- Essential PPE includes gloves, goggles, and lab coats.
- Remove gloves and wash hands before leaving the lab to minimize chemical spread.
- Long hair must be secured, and loose items like bracelets and necklaces should be removed during lab work.
Safety Data Sheets (SDS)
- Consult the SDS before using a substance to understand hazards and personal protection methods.
- Common information in an SDS includes hazard warnings, chemicals identification, and proper handling or storage practices.
Waste Disposal Guidelines
- Unused solid reagents should go in a solid waste container; broken flasks require a sharps container.
- Chemical waste labels should include names and amounts of chemicals, but not the description of experiments.
General Lab Safety Rules
- Do not eat or drink in the lab; all food and beverages must be prohibited to maintain safety.
- Notify instructors of all lab injuries, regardless of perceived severity.
- Handle waste correctly and check compatibility before adding chemicals to the same container.
Guidelines for Smelling Chemicals
- Waft the odor of chemicals using your hand rather than directly sniffing the sample to avoid inhaling harmful substances.
Handling Glassware
- If glassware breaks, wear thick gloves or use a dustpan to carefully collect pieces and dispose of them in a broken glass container.
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