Part II. General Laboratory Safety. Chemical Exposure. Chemicals enter the body through one of the following exposures Inhalation * Skin absorption * Ingestion Injection. * Most common pathways for exposure. Control Chemical Exposure. Exposure is minimized by using:
Chemicals enter the body through one of the following exposures
*Most common pathways for exposure
Exposure is minimized
Engineering controls are an important method to exposure minimization.
Note: Laboratory Hoods are not a place to store chemicals or equipment. Laboratory Hoods are not designed to collect particulates
Doing these ensures that the Lab hood is
Contact Heating Ventilation & Air Conditioning or Risk Management & Safety if your hood is not functioning properly. It will need to be repaired ASAP.
Check baffles to be sure slots are open and unobstructed by equipment or containers.
Ensure that all chemicals and equipment are at least 6 inches behind sash.
Elevate equipment with blocks or racks to maintain efficient airflow.
Keep sash as low as possible (closed when not in use).
Decrease turbulence by opening / closing sash slowly; avoid swift movements inside / outside of the hood.
Perchloric acid must be used in a downwash hood, which is designed for such use.
Hydrofluoric acid needs to be used in an acid hood designed for such purpose.
Verify the hood is functioning properly.Lab Hood: Prior and During Use
Note: A video is available for viewing at the Learning Resource Center (LRC) titled, “Using Chemical Hoods – A Laboratory Safety Test”. Ask for it at the LRC desk.
Children, Pets, and Food are Not Allowed in Labs
Note: teenagers between the ages of 12 and 18 years cannot enter a laboratory unless prior approval is granted by Risk Management & Safety (case by case basis).
To select the proper gloves please reference the glove manufacturers’ testing information. Various manufacturer information can be accessed online at www.byu.edu/hr/risk/Gloves.htm
An adequate equipment or containers. Lab Apron and Arm and Foot Protection must be used when exposed to a potential chemical splash that would result in skin corrosion or burns, or when using toxic chemicals that could be splashed onto and absorbed through the skin.(PPE) Lab Apron and Arm and Foot Protection
Materials to protect arms and feet vary depending upon what chemicals are being used (selection is similar to glove selection).
Lab aprons are typically made of neoprene or nitrile rubber
Personal protective equipment (PPE) should be stored in a manner that protects the equipment from
We recommend storing personal protective equipment (PPE) in a designated cabinet that satisfies these requirements.
If you are responsibe for selecting PPE for your laboratory
Click here to review the PPE training module
For help contact Risk Management and Safety (422-4468) or
Chemicals Management (422-6156).
A spill kit, adequate with supplies needed to clean up materials that may spill, needs to be created and ready to use in the lab at all times.
A basic spill kit generally consists of:
Contact Chemicals Management (422-6156) for waste disposal
(At Least 18” of Clearance)
Electrical cut-off switches
(Such as circuit breakers)
A well kept lab coincides with better research and
a safe work environment
Specific lab training must include:
This level of training is provided by those in charge of the lab and instruction is specific to the lab in use.