CHEM SAFETY Flashcards
First Aid
Flush the opened eyes for at least 15 minutes in an emergency eye wash.
Chemical Splash in the eyes
EU Chemical Hazard Symbols
Carcinogen, Mutagenicity, Reproductive toxicity, Respiratory sensitizer, target organ toxicity, Aspiration toxicity
health hazard
First Aid
true or false
Removing contaminated clothes including undergarments and jewelries from the victim greatly adds to the severity of chemical burn.
false - adds to - reduces
MSDS
yellow - 1
may react if heated or mixed with water but not violently
MSDS
blue - 4
May be fatal on short exposure. PPE is required
MSDS
red - 4
Flammable gas or extremely flammable liquid
MSDS
red - 1
Combustible if heated
Safe working protects:
You, Other lab workers, Cleaners, Visitors, Your work
MSDS
yellow - 3
Explosive if shocked, heated under fine confinement, or mixed with water
EU Chemical Hazard Symbols
Skull and crossbones, fatal or toxic
Acutely toxic
First Aid
true or false
Do not report all accidents to your
instructor.
false - Report
EU Chemical Hazard Symbols
Aquatic toxicity
Environmental hazard
EU Chemical Hazard Symbols
skin corrosion/burn, eye damage, corrosive to metals
Corrosive/Corrosion
MSDS
red - 3
The combustible liquid flash point is below 100 degrees F
MSDS means
Material Safety Data Sheet
First Aid
Immediately flush the skin with large amount of water. Remove all the contaminated clothes including undergarments and jewelries.
Chemical on the skin
The health hazard pictogram indicates a product contains chemicals that may cause health effects in humans, including cancer, gene mutation, reproductive health effects, respiratory sensitivity, and organ toxicity.
health hazard
Never [], [] or [] in a
laboratory.
eat, drink, smoke
[] hair must be []
long, tied back
First Aid
For ALL chemical splashes, wash
with plenty of water for []
10 mins
First Aid
Control bleeding with [], avoiding any foreign bodies such as glass
direct pressure
MSDS
red - 0
Not combustible
MSDS
blue - 2
May be harmful if inhaled or absorbed
Do not carry [] by hand. Use
[] or carts with [].
containers by hand, bottle carriers, secondary containment
Always [] before you leave and especially before []
wash your hands, eating
First Aid
Bleeding
Hold a [] or any pad [] on the wound and apply []. Get medical attention immediately
clean towel, directly, hand pressure
Laboratory hazards – Broken Glassware
Dispose of [] or [] – it is a
risk to you and others
chipped, broken glassware
Numerical ratings for hazards in the NFPA system always have the ff. general meanings
3
Serious Hazard
Chemical Hazards: White
special hazard
General Tidiness
Make sure everything is [] before you [].
safe, leave things unattended
Messy workers are usually poor workers!!
true or false
true
Do not [] any chemicals
taste
Numerical ratings for hazards in the NFPA system always have the ff. general meanings
1
Slight Hazard
How to transport chemicals?
Wear appropriate []
appropriate, PPE
Laboratory hazards – Broken Glassware
Always dispose of [] in a [] or [] and not in a []
broken glass, glass bin, sharps bin, general waste bin
MSDS
yellow - 2
Unstable or may react violently if mixed with water
Chemical Storage – requirements
Segregate chemicals by [] or []
hazard class or compatibility
General Tidiness
Clear up [], deal with [] and put things [].
waste, washing up, away as you finish with them
The main purpose of ventilated cabinets
to keep chemical fumes from building up and to minimize exposure to harmful chemicals by people who use the facilities.
Chemical Storage – requirements
Be aware of []
Special storage conditions (temperature, relative humidity, limited shelf life)
Chemical Storage – requirements
There must be an [] list of []
inventory list of hazardous
chemicals.
Chemical Hazards: Red
Flammability
How to use fire extinguisher?
-Twist the pin to break the safety seal
-Pull out the safety pin
-Aim at the base of the fire
-Squeeze the lever to discharge the extinguishing agent
-Sweep the nozzle from side to side until the flames are total extinguished
Chemical Storage – requirements
Use approved
flammable storage cabinets for flammable liquids
Chemical Storage – requirements
Use [] or trays for [] or []
secondary containers, corrosive or toxic solvents
Chemical Storage – requirements
If available, use
ventilated cabinets for volatile toxics and odoriferous chemicals
the application of the best practices for handling chemicals and chemistry processes to minimize risk, whether to a person, facility, or community. It involves understanding the physical, chemical, and toxicological hazards of chemicals.
Chemical safety
EU Chemical Hazard Symbols
Gasses under pressure
gas cylinder
Numerical ratings for hazards in the NFPA system always have the ff. general meanings
2
Moderate Hazard
MSDS
red - 2
The combustible liquid flash point is between 100 degrees F to 200 degrees F
General Tidiness
Keep your [].
workplace tidy
How to transport chemicals?
Know the [] of the chemicals and
[] to do in the event of a [] or []
hazards, what to do, release or spill
Chemical Storage – requirements
Containers shall be [] when [] or []
dated when received and opened
First Aid
true or false
All laboratory workers should not
undergo simple first aid training
false - should
MSDS
blue - 0
No unusual hazard
MSDS
yellow - 0
Not reactive when mixed with water
a technical document that
contains information on the potential hazards and ways to handle
the chemical products for safety purposes.
Material Safety Data Sheet
Laboratory hazards – Spillages
- Clear up spillage promptly.
- You will already have determined how to
do this as part of your risk assessment. - Dispose of any hazardous material as
toxic waste.
Numerical ratings for hazards in the NFPA system always have the ff. general meanings
0
Minimal hazard
MSDS
yellow - 4
Explosive at room temperature
What are the laboratory hazards?
Fire, Breakage of glassware, Sharps, Spillages, Pressure equipment & gas
cylinders, Extremes of heat & cold, Chemical hazards, Biological hazards, Radiation
MSDS
blue - 1
May be irritating
Do not apply [], [], or [] in the lab
cosmetics, eat, drink
Chemical Hazards: Yellow
instability/reactivity
Safety is everyone’s []
responsibility
Laboratory hazards – Broken Glassware
Use [] for the [] of
[] onto glassware
correct techniques, insertion, tubing
EU Chemical Hazard Symbols
Flammables, Pyrophorics, Self heating, Emits flammable gas, self reactives, organic peroxides
Flame/Flammable
Personal Protective Equipment
Gloves, Goggles, Lab gown/Apron, Closed Shoes
EU Chemical Hazard Symbols
flame over circle
Oxidizers, Oxidising
EU Chemical Hazard Symbols
irritant (skin and eye), skin sensitizer, acute toxicity, narcotic effects, respiratory tract irritant, hazardous to ozone layer
irritant/harmul - exclamation mark
What are the safety equipment in the lab?
eye wash fountain, safety shower, fire extinguisher, emergency exits
Chemical Storage – requirements
Accompanying
MSDS must be kept
How to transport chemicals?
Individuals transporting the chemical must be [] with the [] of the
chemicals being transported.
must be familiar, MSDS
Laboratory hazards:
Flammable substances
- Use minimum quantity
- Store in special storage
cabinet - Use temperature-controlled
heating sources (water-bath rather than hotplate or Bunsen burner)
Chemical Hazards: Blue
health hazard
MSDS
blue - 3
Corrosive or toxic. Avoid skin contact or inhalation
EU Chemical Hazard Symbols
explosives, self reactives, organic peroxides
Explosive - exploding bomb
General Tidiness
A tidy laboratory [] to everyone.
avoids accidents
Chemical Storage – requirements
Chemical containers must be labeled with a
minimum of [], []
chemical name, hazard warnings
Laboratory hazards – Broken Glassware
Never use glassware [] or
[] unless it is designed for the job and
[]
under pressure, vacuum, suitably shielded
Numerical ratings for hazards in the NFPA system always have the ff. general meanings
4
Severe Hazard
