Safety in Laboratory Flashcards
All personnel involved in laboratory activities must have adequate knowledge of proper chemical handling to reduce the chance of having laboratory related accidents
True
Observing threshold limit values and permissible exposure limits is one of the general principle in working with laboratory chemicals
True
Accident prevention program must not be present up to date
False
Chemical Hygiene Plan (CHP) is a written progran developed and implemented by the employer which sets from health hazard presented by hazardous chemical used in that particular workplace
True
He is appointed to performe safety related activities such as review of Hazardous properties of chemicals and MSDS, proper labeling and checking for compliance in safety related activities
Safety Officer
A written program developed and implemented by the employer which sets forth procedures, equipment, ppe and work practices that focuses on protecting employees from health hazards
Chemical Hygiene Plan (CHP)
It has been used as a means of determining how to implement practical and feasible control measures
Hierarchy of Controls
Rounding the sharp edge of equipment to prevent workers injury by sharp edges is an example of
Elimination
You change the eay of work
Administrative controls
Isolating people from the hazard
Engineering controls
Involves replacing one chemical/process foe anothwe with lower physical and health hazards.
Substitution
Using digital thermometer instead of mercury is an example of
Substitution
Using fume hood glove box and putting chemical cabinets is an example of
Engineering controls
Are set to reduce employee exposure from hazards it includes low level of protection and less reliable controls that involve work methods or procedures designed to minimize exposure to hazards
Administrative control
This is the last line of defense from hazard and the supplementary method of control when exposure to hazards cannot be engineered completely out of normal operations
PPE
Reduces lights to soecific wavelength that enters the eyes
Laser safety glasses
Offer protection from flginf debris only
Impact goggles
Used togetherbwith splash goggles when working with chemicals that can cause immediate damage to the skin or eyes
Face shield
Used when dealing with chemicals and infectious substance or even flying debris that may reach the eyes
Chemical splash goggles
Thisbis generally used when working with solutions that are not likely to damage eyes
General safety glasses
Gloves used when working with biological hazards such as human blood fluids or pathogens specimens
Disposable latex
Gloves when working with chemical splash hazards and biological and splash hazards
Disposable nitrile
Used when working with biological hazards
Disposable vinyl
We use _____ when working with small volumes of corrosive liquids organic solvents flammable compounds
Natural rubber latex
We use _____glives when using apparatus under pressure or reactive chemicals
Nitril
Working with large volumes of organic solvents we use this gloves
Butyl
Working with organic solvents and hazardous meterial spills
Viton II
Working with organic solvents with hazardous spills and added mechanical protection
Silver shield
One of the most importante equipment which protect the laboratory staff from inhaling toxic vapors or materials
Laboratory chemical hoods
Is the value that determines the suitability of the chemical fume hood for use should be 80-100 feet per minute
Face velocity
Air current caused by the laboratory personnel by walking in front of open chemical hood which causes vortices that can overcome face velocity and pull the contaminants from the hood into the laboratory
Proximity to traffic
Air current from air diffuser produces the same effect as that of the walking person
Proximity to supply air diffuser
Proximity to windows and doors
Wind blowing and high velocity votices affects chemical hood face velocity
Used for first aid treatment for the skin or eyes chemical splashes and must be available on all areas of the laboratory
Laboratory showers and eyewashes
Eyewash fountains and safety showers should also be placed at least ___ft apart to make simultaneous use of two victims possible
5 ft
Affected body must be rinsed generally app
At least 15mins
Washing for strong alkalis such as sodium potassium or calcium hydroxide
60mins
Non irritants or mild irritants washing time
5mins
Most corrosive irritants should be washed
30mins
Moderate irritants should be washed
15-20mins
Pursuant to the RA 6969 DAO 2015-09 issued by DENR presents the guidelines on proper labelling, storage and management of hazardous substances
Globally haromonized system
_____Gives specifications for the standard system for assigning and identification of the health, flammability, and reactivity hazards of materials under emergency conditions such as spills, leaks, and fires.
National Fire Protection Association
Blue in safety diamond is
Health hazard
Red in safety diamond. Highest flash point?
Fire hazard, below 73°F
Below 100°F flash point number in red safety diamond
3
White diamond
Specific hazard
Yellow is safety hazard
Reactivity
Unstable if heated
1
Violent chemical change
2
May detonate
4
2 in blue safety diamond
Hazardous
Deadly 4
3-_____
2-hazardous
1-slightly hazardous
0-nomal material
Extreme danger
