What is a fume hood used for in a chemistry lab?
The laboratory chemical fume hood is the most common local exhaust ventilation system used in laboratories and is the primary method used to control inhalation exposures to hazardous substances. When used properly, fume hoods offer a significant degree of protection for the user.
What chemicals should be used in a fume hood?
Flammable solvents, corrosive acids, corrosive bases, combustible or potentially explosive concentrations of gases, irritating vapors or dust, asphyxiating gases, or open sources of volatile radionuclides are all examples of materials that must be used inside of a fume hood.
What is a fume hood and how should it be used?
A fume hood is a ventilated, enclosed work space intended to capture, contain, and exhaust harmful or dangerous fumes, vapors, and particulate matter generated by procedures conducted within the fume hood.
What is the purpose of the fume hood quizlet?
A fume hood is used to prevent toxic vapors from getting into laboratory air. The fume hood should be used if one is using chemicals that have inhalation warnings.
When should fume hoods be used?
Fume hoods should be used when working with toxic compounds or compounds with a boiling point below 120°C. Fume hoods, or other effective local ventilation, must be provided and used when the materials used will exceed exposure limits in the laboratory.
What should you not do when using a fume hood?
Safety glasses (goggles), lab coats, and appropriate chemical gloves must be worn when working in, on, or around the fume hood. Do not put your head in the hood, beyond the sash opening. Do not use the hood for storage of equipment, containers, or chemicals which are not going to be used during the day.
When should you use a fume hood for an experiment?
What are the best practices in the use of a laboratory fume hood?
Good Work Practices Keep the hood sash closed as much as possible. Keep the hood slots and baffles free of obstruction by apparatus or containers. Do not permanently store chemicals or apparatus in the hood. Large equipment used inside the hood should be placed on blocks to allow airflow under the equipment.
What is a hood in science?
Explanation: Fume hoods are used in the lab to prevent scientists being exposed to dangous fumes. The fume hood will suck the harmful fumes away from the scientist and out of the building usually via a tall chimney on the roof. The hood is just like an extractor fan in a kitchen.