HA 1| THE CHEMISTRY LABORATORY

Question 1

What is a laboratory?

Answer 1

A laboratory is a facility that provides controlled conditions in which scientifical/technological experiments, research, or measurements may be performed.

Question 2

It is the control of exposure to potentially hazardous substances to attain low risk of exposure.

Answer 2

chemical safety

Question 3

It is a chemical or physical condition with potential for causing damage.

Answer 3

Hazard

Question 4

It is a measure of the likelihood and magnitude of accidents caused by hazards.

Answer 4

Risk

Question 5

Differentiate risk and hazard.

Answer 5

Risk is the likelihood of hazard causing harm, while hazard is something that has the potential to harm you.

Question 6

Identify the type of hazard: excessive noise

Answer 6

physical hazard

Question 7

Identify the type of hazard: poor ventilation

Answer 7

physical hazard

Question 8

Identify the type of hazard: acids/mist

Answer 8

chemical hazard

Question 9

Identify the type of hazard: awkward and static posture

Answer 9

ergonomic hazard

Question 10

Identify the type of hazard: fungi, molds, and virus

Answer 10

biological hazard

Question 11

Identify the type of hazard: extreme pressure and radiation

Answer 11

physical hazard

Question 12

Identify the type of hazard: manual handling and forceful motion

Answer 12

ergonomic hazard

Question 13

What are the factors to consider for chemical and biological hazards?

Answer 13

• route of entry
• toxicity

Question 14

What are the four common routes of entry for chemical and biological hazards?

Answer 14

• absorption through skin/eyes
• ingestion through mouth
• injection through skin/other areas
• inhalation through lungs

Question 15

This factor measures how much a substance can cause harm.

Answer 15

Toxicity

Question 16

Toxicity is affected by what three factors?

Answer 16

• dose
• duration
• interaction

Question 17

What are the 4 steps of hazard control?

Answer 17

A.R.E.C.
Anticipate. Recognize. Evaluate. Control.

Question 18

Within the hierarchy of controls, what is the most effective manner as arranged?

Answer 18

Elimination
(physically remove the hazard)

Question 19

Within the hierarchy of controls, which is the least effective manner as arranged?

Answer 19

PPE
(protect the worker with personal protective equipment)

Question 20

Within the hierarchy of controls, what constitutes substitution?

Answer 20

Replacing the hazard

Question 21

Within the hierarchy of controls, what constitutes engineering and administrative controls, respectively?

Answer 21

1) isolating people from the hazard and 2) changing the way people work

Question 22

Identify the engineering control example: keeps gas and vapor concentration below exposure limit

Answer 22

exhaust fan

Question 23

Identify the engineering control example: a closed chamber in which a pair of gloves projects from openings in the side.

Answer 23

glove box

Question 24

Identify the engineering control example: enclosed, ventilated laboratory workspace for safely working with materials contaminated with pathogens

Answer 24

biosafety cabinet

Question 25

**Identify the engineering control example: a suction device that encloses, captures, or removes contaminants.**

Answer 25

fume hood

Question 26

**What does GHS stand for when it comes to laboratory safety?**

Answer 26

**Global Harmonized System** (of Classification and Labelling Chemicals)

Question 27

**Which part of a GHS-compliant label is this?** - should identify the hazardous chemical by an appropriate term

Answer 27

product identifier | **(e.g chemical name, code number, batch number)**

Question 28

**Which part of a GHS-compliant label is this?** - it lets the reader know that the chemical is hazardous

Answer 28

signal words | **[warning & danger: less sever & more severe]**

Question 29

**Which part of a GHS-compliant label is this?** - it specifies the nature and degree of the chemical hazard

Answer 29

hazard statements

Question 30

**Which part of a GHS-compliant label is this?** - it outlines the suggested measures for lowering risk of harm from a chemical

Answer 30

precautionary statements

Question 31

**GHS-compliant labels contain precautionary statements that provide what information?**

Answer 31

- **prevention** statement - **response** statement - **proper storage** statement - **proper disposal** statement

Question 32

**What contact info should be provided when labeling GHS-compliant chemicals/products?**

Answer 32

- name - address - telephone no. of the chemical manufacturer - responsible company/individual

Question 33

**In chemical labelling, these figures are surrounded by a red border to illustrate the hazards of a chemical without the use of words.**

Answer 33

pictograms

Question 34

**According to the NFPA's Hazmat Diamond, what rating number is considered lethal?**

Answer 34

4

Question 35

**What are the three hazards highlighted by the NFPA's Hazmat Diamond?**

Answer 35

- instability - fire hazard - health hazard

Question 36

**Under the protocol of the NFPA, what are SDS?**

Answer 36

**Safety Data Sheet** It is a summary of the improtant health, safety, and toxicological information on the chemical or the mixture of ingredients.

Question 37

**What information should an SDS contain?**

Answer 37

- chemical name/identifaction - hazard identification: pictograms/signal words - PPE - disposal requirements