Safety Blue book Flashcards
what hazard is viruses and parasites
biological hazard
what hazard is radiation, thermal stress, and mechanical hazard
physical hazard
what hazard is due to stress in the workplace physically or mentally
ergonomic hazard
What is the hierarchy of controls
top -> down
Engineering, administrative, PPE
examples of engineering control
fume hood, biosafety cabinet, substitution of less toxic material
example of administrative control
safe work procedure, scheduling, training
What is the internal responsibility system used for
demonstrate responsibilies of management and employees
3 main elements of WHMIS
SDS, labels, training
what does the OHSMS do
ensure all roles and responsibilies are identified, documented, and accounted for
what 3 factors is risk level calculated by
frequency of hazard
severity of hazard
probability of hazard
Steps of a Job Hazard Assessment
- list critical steps
- ID all equipemnt used for procedure
- ID potential hazards
- review available control measures
- verify effectiveness of controls
what does containment level 1 have
- biosafety by good practices
- physical containment
- handwash sinks
what does containment level 2 have
- administrative controls
- physical containment
- biosafety equipment
what does containment level 3 have
- engineering controls
- ## HEPA filters and BSC
where can biological aerosols be suspended
bacteria, virus, parasites, fungid
decontaminate definition
killin gmicroorganisms
disinfection definition
destroy organims but NOT spores by chemicals
sterilization definition
removal of microorganisms by chemical or physical means
autoclave parameters
121 C
15psi / 103kPA
30-60 mins
microorganism for autoclave indicator
geobacillus stearothermophilus
bacillus atrophaeus
what disinfectant used for highly concentrated biological spills
peroxyacetic acid mixed with hydorgen peroxide
what microorganism is usually resistant to disinfectants
prions
what is the most important part of the biosaftey cabinet
HEPA filter - made of glass and paper
when are biosaftey cabinets teseted
instillation
moved or repaired
annually
where should vortex or mixers be located in the biosaftey cabinet
back but not blocking the grilles
T/F elbows and arms do not rest on the grille or work surface
T
should a bottle of disinfectant be inside the BSC
yes
what should NOT be inside a BSC
propane or any open flames are not allowed
Is UV light most effective in BSC
no because it only cleans the surface bugs
how long to wait for disinfectant on small spills
30 minutes
What is the procedure for large spills
inform others in area and move out to allow aerosol to settle
how long to wait for centriduge if a tube breaks whiel spinning
30 minutes
T/F most flammabble liquids cause neurotoxic effects
T
who is WHIMIS compatible with
GHS
globally harmonized system
What are suppliers responsiblilty
deem hazardous, labels, and SDS sheets
employer responsibilities
education and training, labelling, SDS to workers
worker responsibilites
attend education and ID hazards
what is the most common route of hazard for lab
respiratory
4 different types of fire extinguishers
A- paper, wood, cardboard
B- oils
C- current / electricity
D- metals
what are flammable materials separated from
oxidizing materials
what are the first steps for chemical spills of volative or flammable liquids
- turn off ignition sources
- get everyone out
- set up barriers
what can activated charcoal be used up to clean
solvents
what are 3 non ionizing radiation in labs
laser
microwaves
uv rays
what does laser stand for
light amplification by stimulated emission of radiation
what are teratogens
substances that cause birth defects
what is a method of laboratory ventilation
HVAC
heat, ventiation, air-con
what are canopy hoods
capture heat from spectrophotometers or autoclaves
what is a direct connection in laboratory air
preventing release of contaminiants by capturing at the source; flammable storage cabinet connected
