UNIVERSITY OF COLORADO COLORADO SPRINGS

Review QuestionsLab Safety

Global Hazard SystemUniversity of Colorado

Colorado Springs

Division of Environmental Health and Safety

ReviewWaste Management

Question 1: Your HCl acid bath used to clean glassware has become dirty and it is time to change it. The spent HCl acid waste meets the characteristics of which of the following?

The spent HCl acid waste meets the characteristics of Corrosivity.

Corrosivity ReactivityIgnitabilityToxicity

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Waste Management

Question 2: You have a spent gel that contains 10 mg/liter of a spent mercury compound HgCl2. Approximately how many parts per million (ppm) of mercury does the gel contain?

The spent gel contains 10 ppm of mercury..

1 ppm 2 ppm10 ppm100 ppm

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Waste Management

Question 3: Does the spent gel from above have to be disposed through Environmental Health and Safety as a "toxic" hazardous chemical waste?

The spent gel contains 10 ppm of mercury, which exceeds the 0.2 ppm Hg standard. Therefore the spent gel needs to be disposed of through Environmental Health & Safety as a

"toxic" hazardous chemical waste..

.

YesNo

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Emergency Response

Question4: If 100 milliliters of diluted sulfuric acid spills, would it be treated as an incidental or emergency response spill? Click on the correct response.

Incidental

Emergency Response

Correct! This is an incidental spill that can be neutralized and cleaned up by an individual with the proper training.

Incorrect. This is probably an incidental spill unless the acid was going down the drain or caused an injury. You can neutralize the spill and

clean it up.

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Emergency Response

Question 5: What if the spill was 4 liters of ethanol? Would you treat this as an incidental or an emergency response spill?

Incidental

Emergency Response

Incorrect. This is probably not an incidental spill because the fumes from this much ethanol could create a flammable hazard.

Correct! The fumes from this much ethanol could create a flammable hazard.

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Emergency Response

Question 6: Let us review the "Spill Rule" concepts

DirectionsFor each spill rule, choose its correct purpose.

Spill Rule: Ask Yourself "Can I Handle It?“

1. The procedure to handle emergency response spills.

2. The criterion to distinguish emergency response spills from incidental spills.

3. The procedure to handle incidental spills.

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Emergency Response

Spill Rule: Ask Yourself "Can I Handle It?“

2. The criterion to distinguish emergency response spills from incidental spills.

Correct! If you know how to handle it, you: deal with the hazards of the chemical without harming yourself, others or the environment; have enough cleanup materials for the volume spilled; have correct protective equipment; be trained to clean up the spill.

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Emergency Response

DirectionsFor each spill rule, choose its correct purpose.

Spill Rule: 4W: Warn, Wear, Wipe Up, Wrap Up

1. To handle emergency response spills.

2. To distinguish emergency response spills from incidental spills.

3. The procedure to handle incidental spills.

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Question 7: Let continue our review of the "Spill Rule" concepts

Emergency Response

Spill Rule: 4W: Warn, Wear, Wipe Up, Wrap Up

1. To handle emergency response spills.

2. To distinguish emergency response spills from incidental spills.

3. The procedure to handle incidental spills.

Incorrect. In fact, once you determine the spill is an emergency response spill, you should take the Warn, Lock, Report and Wait steps, not the 4W procedure..

Incorrect. Actually, this is what you always do first of all - determine what kind of spill you have to deal with. Try to think what kind of spill you would choose to follow the 4W set of procedures for.

Correct.

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Emergency Response

DirectionsFor each spill rule, choose its correct purpose.

Spill Rule: Warn, Secure, Report, Wait

1. To handle emergency response spills.

2. To distinguish emergency response spills from incidental spills.

3. The procedure to handle incidental spills.

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Question 8: Let continue our review of the "Spill Rule" concepts

Emergency Response

Spill Rule: Warn, Secure, Report, Wait

1. To handle emergency response spills.

2. To distinguish emergency response spills from incidental spills.

3. The procedure to handle incidental spills.

Correct! Warn, Secure, Report and Wait are the four steps you would definitely use to handle emergency response spills.

Incorrect. To distinguish emergency response spills from incidental spills is what the "Can I Handle It?" rule dictates. Think when you would take the Warn, Secure, Report and Wait steps.

Incorrect.

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Waste ManagementQuestion 9: If you are unsure about whether or not the chemical you are working with exhibits any of the CRIT characteristics for hazardous waste, what should you do?

You should review the chemical's SDS. The SDS is available from the manufacturer's or supplier's web site. Be careful because only ingredients at a concentration of 1% (i.e., 10,000 ppm) or greater are required to be listed on a product SDS (unless the ingredient poses an extreme

health hazard.).

.

a. Review the chemical's safety data sheet (SDS). b. Review the original purchase order. c. Call the Colorado Department of Public Health &

Environment (CDPHE). d. Review the shipping document.

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ReviewQuestion 10: Find 2 errors in this waste storage situation

Waste Management

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ReviewFind 2 errors in this waste storage situation

Waste Management

In this situation the container lid is not being used. Make sure you use the appropriate lid and close chemical waste containers tightly.

This chemical is not labeled and that is one of the problems with this situation. Labeling chemicals as Hazardous Waste is a relevant procedure.

Actually this is the correct procedure to follow. You should always use a secondary container in SAA situations

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Review11. Waste must be compatible with the container it is stored in.

TRUE FALSE

12. Waste containers must be closed all the time except when placing waste into the container. TRUE FALSE

13. Never accumulate more than 1 quart (946 milliliters) of P-listed waste. TRUE FALSE

14. At UCCS, you should not accumulate more than 10 gallons (37 liters) of U-listed or characteristic waste. TRUE FALSE

15. Your chemical waste containers must be inspected weekly.

TRUE FALSE

Waste Management

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Review - answers11. Waste must be compatible with the container it is stored in.

12. Waste containers must be closed all the time except when placing waste into the container

13. Never accumulate more than 1 quart (946 milliliters) of P-listed waste.

14. At UCCS, you should not accumulate more than 10 gallons (37 liters) of U-listed or characteristic waste.

15. Your chemical waste containers must be inspected weekly.

Waste Management

All statements are true. You should not accumulate more than 1.0 quart of P-listed wastes in the SAA.

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Review16. Chemical waste containers can be left unattended

if tightly sealed and properly labeled. TRUE FALSE

Waste Management

False. Chemical waste containers must always be under your control. The waste container must be under visual observation at all times. If no one is present, waste must be under lock and key

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ReviewWaste Management

Question 17: How do you dispose of an outdated laptop computer?

You should contact UCD Space and Asset Management..

.

a. Contact the Environmental Health and Safety Department

b. Dispose into trash compactor by janitor. c. Recycle through a "commercial recycler." d. Contact UCD Space and Asset Management.

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ReviewWaste Management

Question 18 : If you are working with a chemical that is found on the F, P or U list, what does this imply?

Any chemicals found on the F, P or U list should be disposed of as regulated waste.

..

a. The chemical is never a regulated waste. b. The chemical can be sink disposed. c. Any chemical found on these lists should be disposed

as regulated waste through EHS. d. Only unused chemical is a regulated waste.

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ReviewWaste Management

You should now be prepared to take the quiz found on the EHS website.

http://www.uccs.edu/Documents/pusafety/EHS/Training/Lab%20Safety%20Quiz.doc

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