Right to KnowReview

1. What is hazard communication?

A written document, warning sign, or a chemical label warning someone of hazardous material.

2. Why do we need to know about chemical hazards?

Protect yourselfProtect othersProtect environment

3. What are the most common signal words that alert you to a

dangerous situation?CautionWarningDanger

4. What does MSDS stand for?

Material Safety Data Sheet

5. Where in the School are the Right to Know notebooks that contains

the MSDS? • Nurse's office• Main office• Wellness center• Maintenance/ Janitor’s Closet• Shops• Science classrooms

6. List 7 categories of info on a MSDS.

• Identifies manufacturer• Gives chemical and physical properties• Indicates fire and explosion hazard• Identifies health hazard• Gives reactivity data• Indicates storage and handling

procedures• Supplies first aid information• Details disposal and cleanup methods

7. What does TLV stand for?

Tolerance Limit Value~ The amount of chemicals a person can be exposed to before they show side effects.

8. What does ppm stand for?

Parts per million (ppm)

The amount of any substancedispersed into another.

9. What is the TLV of sulfuric Acid?

1mg/M3

10. Explain what the TLV of sulfuric acid means?

The amount of sulfuric acid a person can be exposed to before they show side effects.

11. What are the hazards associated with H2SO4 ?

Toxic, strong skin irritantNon-flammableExplosive splattering when mixed with water

12. What first aid should be utilized for Sulfuric Acid for

external contact?External-Wash affected parts with copious quantities of water.

13. What does copious mean?

A lot; Large amounts of

14. Explain What DOT means.

Department of Transportation

15. What should you do if you develop a headache or are

injured (cut, burn etc.) in the lab?

Tell the teacherGo to nurse for treatment

16. When should you wear safety goggles?

When using…GlasswareChemicalsHeating materials (fire)

17. When around movingmachinery what is the

main concern?The main concern is that loose clothing or hair will be caught in the machinery.

18. When using electricity what are the main

concerns?The main concern when using electricity in laboratory situations is electrical shock.

19. Define inhalation

To breathe in (Inhale)

20. Define ingestion

To eat something (digest)

21. Define corrosive

Something that will eat away at or eat through.

22. Define toxic

Something that can kill you or poison you.

23. What is the difference between Acute and Chronic

exposure?Acute ExposureExposure to a lot of chemical substance in a short period of time. A reaction that happens right away or within minutes or hours. (burns, rashes, nausea)

Chronic ExposureExposure to a small amount of chemical substance over a long period of time. A reaction may take years to develop. (smokers hack)

24. Define diluted

DILUTED~ to make (a liquid) thinner or weaker by the addition of water or the like.

25. What are the different color classifications on chemical

containers and what do they mean?

RED - FLAMMABLE

YELLOW - REACTIVE

BLUE - TOXIC OR POISONOUS

WHITE - CORROSIVE OR CAUSTIC

GREEN - RELATIVELY NONHAZARDOUS

26. Name two common routes of exposure to hazardous chemicals.

IngestionSkin / Eye Contact

Inhalation

27. Name the three ways materials present hazards to humans.

HealthFireReactivity

28. What is more dangerous a chemical with a number 4 on the label or one with a number 2 on

the label?

Number 4 because it is considered to be extremely toxic

Number 2 on the scale is only moderately toxic

29. What are the chronic and acute hazards associated with Ethyl

Ether?Acute hazards• Toxic• irritant• coughing• chest pains• difficulty in breathing• nausea,• headaches and

vomiting

Chronic hazards• Possible mutagen