Chem 1LD Safety| With complete solu on|Updated
RATED A+
What should you do during laboratory emergencies: chemical spills, minor burns and cuts, and
fires?
- Stay calm
- turn off lab equipment before leaving lab for fire alarm
- know where stairs are
- all labs must have 2 exits
Which of the following common household products contain flammable chemicals?
- gasoline
- nail polish remover
- an$freeze
- rubbing alcohol
Ways to stop a fire?
- limit quan$$es of flammable substances in work area
- remove igni$on sources
- place beaker over small flame to remove oxygen
- ground metal container to prevent sta$c electricity
True about flammability
- a fire cannot state above/below a vapor's flammability limits
- inflammable is another work for flammable
The Na$onal Fire Protec$on Associa$on (NFPA) diamond has a ___ sec$on for flammability.
red
If the number ___ appears in this sec$on, the chemical is extremely flammable
4
If the number ___ appears in this sec$on, the chemical is a combus$ble. It will catch fire when
heated.
2
The Global Harmonized System (GHS) symbol is a picture of a ___.
, fire
If the hazard category is ___, the chemical is extremely flammable
Hazard Category 1
If the hazard category is ___, the chemical is a combus$ble.
Hazard Category 4
True statements about fume hoods
- room air should be drawn into the fume hood
- the "sash" is the window on the front of the fume hood
- all work should be done at least 6 inches inside the hood
- $ssue paper held at bo9om of sash should blow into the hood
PEL
Permissible Exposure Limit
Odor Threshold
Gas concentra$on
Odor fa$gue
decreased sensi$vity
IDLH
Immediately Dangerous to Life and Health
OEL
Occupa$onal Exposure Limit
Which of these chemicals will you smell AFTER it becomes hazardous?
The chemical with its PEL (permissible exposure limit) is LOWER than its odor threshold
True glove statements
- gloves should be removed when they come in contact with any hazardous chemical
- no glove material protects against all chemicals
Perma$on
ability of chemical to see through the glove
RATED A+
What should you do during laboratory emergencies: chemical spills, minor burns and cuts, and
fires?
- Stay calm
- turn off lab equipment before leaving lab for fire alarm
- know where stairs are
- all labs must have 2 exits
Which of the following common household products contain flammable chemicals?
- gasoline
- nail polish remover
- an$freeze
- rubbing alcohol
Ways to stop a fire?
- limit quan$$es of flammable substances in work area
- remove igni$on sources
- place beaker over small flame to remove oxygen
- ground metal container to prevent sta$c electricity
True about flammability
- a fire cannot state above/below a vapor's flammability limits
- inflammable is another work for flammable
The Na$onal Fire Protec$on Associa$on (NFPA) diamond has a ___ sec$on for flammability.
red
If the number ___ appears in this sec$on, the chemical is extremely flammable
4
If the number ___ appears in this sec$on, the chemical is a combus$ble. It will catch fire when
heated.
2
The Global Harmonized System (GHS) symbol is a picture of a ___.
, fire
If the hazard category is ___, the chemical is extremely flammable
Hazard Category 1
If the hazard category is ___, the chemical is a combus$ble.
Hazard Category 4
True statements about fume hoods
- room air should be drawn into the fume hood
- the "sash" is the window on the front of the fume hood
- all work should be done at least 6 inches inside the hood
- $ssue paper held at bo9om of sash should blow into the hood
PEL
Permissible Exposure Limit
Odor Threshold
Gas concentra$on
Odor fa$gue
decreased sensi$vity
IDLH
Immediately Dangerous to Life and Health
OEL
Occupa$onal Exposure Limit
Which of these chemicals will you smell AFTER it becomes hazardous?
The chemical with its PEL (permissible exposure limit) is LOWER than its odor threshold
True glove statements
- gloves should be removed when they come in contact with any hazardous chemical
- no glove material protects against all chemicals
Perma$on
ability of chemical to see through the glove
