Introduction Material Flashcards
GHS
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
Mandatory components of a chemical label
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)
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
How many hazard pictograms are there?
Nine
What major categories do the hazard pictograms break down into?
3 main categories;
1) Health hazards
2) Environmental Hazards
3) Physical Hazards
Health Hazard Pictograms
3 of them:
1) Irritant
2) Health Hazard (=carcinogen, mutagenic, target organ toxicity, aspiration toxicity, etc.)
3) Acute toxicity
Acute Toxicity
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
Physical Hazards Pictograms
5 of them:
1) Flammable
2) Corrosive
3) Explosive
4) Gases under pressure
5) Oxidizer
Environmental Hazard Pictogram
Just one for overall environmental hazard
–> Looks like a dead tree and fish on the pictogram
Flammable Pictogram
Image:
Black flame
Corrosive pictogram
Image:
pouring solution onto someone’s hand
Explosive pictogram
Image:
A substance exploding
Gases under pressure pictogram
Image:
A bottle of a substance
(looks kind of like a wine bottle; think “bottle, carbonated drinks, pressure and gas”)
Oxidizer pictogram
Image:
White flaming ball
Irritant pictogram
Image:
Exclamation mark
Health Hazard (target organ toxicity, carcinogen, etc.) pictogram
Image:
Someone struck in the chest
Acute toxicity pictogram
Image:
Skull and bones
Hazard Categories
Numerical categories used to compare severity of a hazard within categories
Hazard categories severity designation
Category 1 = MOST severe
(decreasing in severity to)
Category 4 = LEAST severe
Decreasing severity order:
1>2>3>4
Flash Point
LOWEST temperature at which vapors of a substance will ignite
Chemical fume hood proper usage
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
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
B) “Danger” is used for the most severe hazards, while “Warning” is for
less severe hazards
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
B) Storing large quantities of chemicals inside the hood
THE HOOD IS NOT FOR STORAGE IT IS FOR WORK
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
B) Add acid to water slowly while stirring continuously
ALWAYS ADD ACID TO WATER AND NOT THE OTHER WAY AROUND!!!!!!
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
A. Environmental pollution
Corrosive
Health Hazard
–> Most commonly used for carcinogens, target organ toxicity, aspiration toxicity
Irritant
Flammable
Acute toxicity
Oxidizer
Gases under pressure
Explosive
Environmental Hazard
