Introduction Material

Question 1

GHS

Answer 1

Globally Harmonized System for Classification and Labeling of Chemicals

–> A set of international conventions used for communicating the hazards of chemicals

–> Identifies 7 potential elements that can be present on a label, 6 of which are mandatory

Question 2

Mandatory components of a chemical label

Answer 2

There are 6 of them:

1) Product Identifier (Name, code, etc.)

2) Contact Information

3) Precautionary statements (telling you what not to do w/ it and how to respond in case of contact with it)

4) Signal Words ( Things like “DANGER”)

5) Hazard Pictograms (the visuals that tell you what type of hazards the chemical may create)

6) Hazard Statements (a more detailed description of the hazards to be aware of)

Question 3

Which of the following is NOT a requirement for a GHS-compliant Safety Data Sheet (SDS)?

A) Identification of the substance or mixture and the supplier

B) Information on firefighting measures

C) Guidelines for safe storage and handling

D) Instructions for the disposal of chemical containers by incineration only

Question 4

How many hazard pictograms are there?

Answer 4

Nine

Question 5

What major categories do the hazard pictograms break down into?

Answer 5

3 main categories;

1) Health hazards
2) Environmental Hazards
3) Physical Hazards

Question 6

Health Hazard Pictograms

Answer 6

3 of them:

1) Irritant
2) Health Hazard (=carcinogen, mutagenic, target organ toxicity, aspiration toxicity, etc.)
3) Acute toxicity

Question 7

Acute Toxicity

Answer 7

Acute toxicity describes the adverse effects of a substance that result either from a single exposure or from multiple exposures in a short period of time

Question 8

Physical Hazards Pictograms

Answer 8

5 of them:

1) Flammable
2) Corrosive
3) Explosive
4) Gases under pressure
5) Oxidizer

Question 9

Environmental Hazard Pictogram

Answer 9

Just one for overall environmental hazard

–> Looks like a dead tree and fish on the pictogram

Question 10

Flammable Pictogram

Answer 10

Image:

Black flame

Question 11

Corrosive pictogram

Answer 11

Image:

pouring solution onto someone’s hand

Question 12

Explosive pictogram

Answer 12

Image:

A substance exploding

Question 13

Gases under pressure pictogram

Answer 13

Image:

A bottle of a substance

(looks kind of like a wine bottle; think “bottle, carbonated drinks, pressure and gas”)

Question 14

Oxidizer pictogram

Answer 14

Image:

White flaming ball

Question 15

Irritant pictogram

Answer 15

Image:

Exclamation mark

Question 16

Health Hazard (target organ toxicity, carcinogen, etc.) pictogram

Answer 16

Image:

Someone struck in the chest

Question 17

Acute toxicity pictogram

Answer 17

Image:

Skull and bones

Question 18

Hazard Categories

Answer 18

Numerical categories used to compare severity of a hazard within categories

Question 19

Hazard categories severity designation

Answer 19

Category 1 = MOST severe
(decreasing in severity to)
Category 4 = LEAST severe

Decreasing severity order:
1>2>3>4

Question 20

Flash Point

Answer 20

LOWEST temperature at which vapors of a substance will ignite

Question 21

Chemical fume hood proper usage

Answer 21

1) Keep the hood sash closed when not using

2) Keep head out of the hood

3) All work completed 6” inside the hood

4) Maintain airflow in the hood

5) Clean all spills immediately

Question 22

What does the signal word “Danger” signify on a GHS label compared to “Warning”?

A) “Danger” is used for less severe hazards, while “Warning” indicates
more severe hazards

B) “Danger” is used for the most severe hazards, while “Warning” is for
less severe hazards

C) Both terms are used interchangeably based on the chemical’s usage

D) “Warning” is mandatory on all GHS labels, while “Danger” is optional

Answer 22

B) “Danger” is used for the most severe hazards, while “Warning” is for
less severe hazards

Question 23

Which of the following actions is considered improper use of a
chemical fume hood?

A) Keeping the sash as low as possible during experiments

B) Storing large quantities of chemicals inside the hood

C) Performing procedures that generate toxic vapors inside the hood

D) Keeping the sash closed when the hood is not in use

Answer 23

B) Storing large quantities of chemicals inside the hood

THE HOOD IS NOT FOR STORAGE IT IS FOR WORK

Question 24

Which of the following best describes the correct procedure for
safely adding a concentrated acid to water?

A) Add water to acid slowly while stirring continuously

B) Add acid to water slowly while stirring continuously

C) Add both water and acid simultaneously

D) The order does not matter as long as stirring is continuous

Answer 24

B) Add acid to water slowly while stirring continuously

ALWAYS ADD ACID TO WATER AND NOT THE OTHER WAY AROUND!!!!!!

Question 25

What is the primary risk associated with the improper disposal of
organic solvent waste in a laboratory?

A. Environmental pollution

B. Increased lab expenses

C. Formation of explosive compounds

D. Corrosion of lab equipment

Answer 25

A. Environmental pollution

Question 26

Answer 26

Corrosive

Question 27

Answer 27

Health Hazard

–> Most commonly used for carcinogens, target organ toxicity, aspiration toxicity

Question 28

Answer 28

Irritant

Question 29

Answer 29

Flammable

Question 30

Answer 30

Acute toxicity

Question 31

Answer 31

Oxidizer

Question 32

Answer 32

Gases under pressure

Question 33

Answer 33

Explosive

Question 34

Answer 34

Environmental Hazard