Safety 1
What do perforated shoes, sandals, or cloth sneakers not offer?
A barrier between the laboratory worker and chemicals or broken glass.
What do safety glasses not protect you from that goggles do?
Chemicals, dusts, and powders that may seep through.
The selection of the appropriate glove is based on what characteristics?
Degradation rating, breakthrough time, and permeation rate.
What items does PPE include?
Gloves, respiratory protection, eye protection, and protective clothing.
What do degradation ratings indicate?
How well a glove will hold up when exposed to a chemical.
What are visorgogs?
Hybrid of a goggle and safety glasses. More splash protection than safety glasses, but not as much as goggles.
What is best for minor chemical splashes and spills?
Lab coats.
What kind of clothing and hair may pose a hazard in the laboratory?
Loose clothing, skimpy clothing, torn clothing, and unrestrained hair.
Who does the PPE protect?
Only the wearer.
PPE
Personal Protective Equipment
What type of clothing is best protection from corrosive and irritating liquids?
Plastic or rubber aprons.
If a contact lens becomes contaminated with a hazardous material, what do you do?
Rinse the eye using an eyewash and remove and discard the lens immediately.
What is PPE?
Special gear used to protect the wearer from specific hazards of a hazardous substance.
What is degradation?
The change in one or more of the physical properties of a glove caused by the contact with a chemical.
What is breakthrough time?
The elapsed time between the initial contact of the test chemical on the surface of the glove and the analytical detection of the chemical on the inside of the glove.
PPE does not reduce or eliminate what?
The hazard.
What is permeation rate?
The rate at which the test chemical passes through the glove material once breakthrough has occurred and equilibrium is reached.
What is the need for PPE dependent on?
The type of operations and the nature and quantity of materials in use.
What kind of lenses do safety glasses have?
They are impact resistant and the frames are far stronger than standard streetwear glasses and side shields.
What do chemical resistant overshoes or boots do?
They may be used to avoid possible exposure to corrosive chemical or large quantities of solvents or water that might penetrate normal footwear.
What do leather shoes do?
They tend to absorb chemicals and may have to be discarded if contaminated with hazardous material.
Disposable outer garments may be useful when what?
When cleaning and decontamination of reusable clothing is difficult.
When should gloves be worn?
When handling hazardous materials, chemicals of unknown toxicity, corrosive materials, rough or sharp-edged objects, and very hot or very cold materials.
When is PPE used?
When substitution or engineering controls are not feasible.
What are steel-toed safety shoes necessary for?
When there is a risk of heavy objects or rolling onto the feet.
When should Chemical Splash Goggles be worn?
When there is potential for splash from a hazardous material.
When should safety glasses be worn?
Whenever there is the possibility of objects striking the eye: particles, glass, or metal shards.