Lab Safety (Hazards) Flashcards
Are extensions cord be used?
no
what kind of adaptors is prohibited in the lab?
- cheater adaptor
- Gang plugs
what should you pull the plug or the cord?
plug
what should you do if a electrical equipment fail to function properly?
disconnect the apparatus
What will you use in case of an electric fire?
Carbon dioxide extinguisher (not water)
All chemicals in the laboratory must be considered as?
Poison
Where should you refer if you have problems regarding the handling and storage of a chemical?
Material Safety and Data Sheet (MSDS)
Wearing contact lens is not permitted when working with what chemicals?
- xylene
- acetone
- alcohols
- formaldehyde
- other solvents
flammable liquids should be stored how many feet away from heat source?
5 ft
can you stire inflammable chemicals in refrigerators?
no
Strong acids and alkalis should be stored where?
near the floor with warning sign
when will you use bottle carriers?
if chemical is more than 500 mL
OSHA requires manufactures and suppliers to provide what onsite for the laboratory personnel?
Material Safety Data Sheets (MSDS)
MSDS will specifically include:
- chemical identity
- chemical and common name
- physical and chemical characteristics
- signs and symptoms of exposure
- routes of entry
- exposure limits
- carcinogenic potential
- safe handling procedures
- spill clean-up procedures
- emergency first aid
the outside of containers should be wiped with what?
alcohol swab
can be one of the most toxic sources of exposure to personnel in the laboratory
Ionizing radiation
pregnant women must not work with?
radioactive substances
There should be a placement of fire extinguishers every what feet?
75 ft
placement of fire detection systems should be tested every when?
3 months
these are written fire prevention and response procedures
fire response plan
fire drills should be done how many times in a year?
quarterly
checking of fire extinguisher should be done how many times?
at least once a year
in case of a fire accident what should you do to prevent draft?
close all doors and windows
what should you use for small blaze
sand or waterand a fire blanket
what should you use for larger blaze?
fire extinguisher
when escaping fire, what is safest way of evacuating?
crawling and staying close to the floor
what should you do to reduce the danger of inhaling flame
cover your mouth and nose
ordinary combustibles such as wood, paper and cloth belong to what class of fire?
Class A
flammable liquids, gases or grease belong to what class of fire?
Class B
electrical equipment, motors and switches belong to what class of fire?
Class C
flammable metals such as magnesium belong to what class of fire?
Class D
What should you use for Class A fires?
- pressurized water
- dry-chemical extinguishers
What should you use for Class C fires?
Dry chemical and carbon dioxide extinguishers
What should you use for Class D fires?
Special dry-chemical extinguishers (firefighters only)
