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biochem. > HA 1| THE CHEMISTRY LABORATORY > Flashcards

HA 1| THE CHEMISTRY LABORATORY Flashcards

1
Q

What is a laboratory?

A

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

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2
Q

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

A

chemical safety

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3
Q

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

A

Hazard

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4
Q

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

A

Risk

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5
Q

Differentiate risk and hazard.

A

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

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6
Q

Identify the type of hazard: excessive noise

A

physical hazard

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7
Q

Identify the type of hazard: poor ventilation

A

physical hazard

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8
Q

Identify the type of hazard: acids/mist

A

chemical hazard

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9
Q

Identify the type of hazard: awkward and static posture

A

ergonomic hazard

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10
Q

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

A

biological hazard

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11
Q

Identify the type of hazard: extreme pressure and radiation

A

physical hazard

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12
Q

Identify the type of hazard: manual handling and forceful motion

A

ergonomic hazard

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13
Q

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

A
  • route of entry
  • toxicity
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14
Q

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

A
  • absorption through skin/eyes
  • ingestion through mouth
  • injection through skin/other areas
  • inhalation through lungs
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15
Q

This factor measures how much a substance can cause harm.

A

Toxicity

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16
Q

Toxicity is affected by what three factors?

A
  • dose
  • duration
  • interaction
17
Q

What are the 4 steps of hazard control?

A

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

18
Q

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

A

Elimination
(physically remove the hazard)

19
Q

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

A

PPE
(protect the worker with personal protective equipment)

20
Q

Within the hierarchy of controls, what constitutes substitution?

A

Replacing the hazard

21
Q

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

A

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

22
Q

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

A

exhaust fan

23
Q

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

A

glove box

24
Q

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

A

biosafety cabinet

25
Q

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

A

fume hood

26
Q

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

A

Global Harmonized System (of Classification and Labelling Chemicals)

27
Q

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

A

product identifier

(e.g chemical name, code number, batch number)

28
Q

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

A

signal words

[warning & danger: less sever & more severe]

29
Q

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

A

hazard statements

30
Q

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

A

precautionary statements

31
Q

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

A
  • prevention statement
  • response statement
  • proper storage statement
  • proper disposal statement
32
Q

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

A
  • name
  • address
  • telephone no. of the chemical manufacturer
  • responsible company/individual
33
Q

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

A

pictograms

34
Q

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

A

4

35
Q

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

A
  • instability
  • fire hazard
  • health hazard
36
Q

Under the protocol of the NFPA, what are SDS?

A

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

37
Q

What information should an SDS contain?

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

biochem. (5 decks)

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