Use Of Fume Cupboard In Chemistry Laboratory
Apr 2009 last review.
Use of fume cupboard in chemistry laboratory. Gases vapours aerosols and particulates dust. I have never heard of a fume cupboard but have used fume hood on many occasions. Picture from wikipedia it is used when handling noxious or toxic chemicals with a vapor pressure high enough to cause danger or discomfort if used on a bench top. This version refers to the new en 14175 which replaces bs 7258 and further refers to nerc containment values which are more stringent than those in the en.
Control page 2 of 2 created. A fume hood is typically a large piece of equipment enclosing five sides of a work area the bottom of which is most commonly located at a standing work height. The laboratory fume hood is a type of local exhaust ventilation system engineering control. A fume hood sometimes called a fume cupboard or fume closet is a type of local ventilation device that is designed to limit exposure to hazardous or toxic fumes vapors or dusts.
A fume cupboard can contain the fumes and remove them from the room removing the possibility of ingesting harmful chemicals. May 2010 don t do not place your face or head inside the hood. Two main types exist ducted and. The aim of the fume cupboard is to dispose of the harmful gases given of by the reaction.
Using a fume hood custodian. Keep hands out as much as possible. Fume hoods are the primary method of exposure control in the laboratory. Rapid and regular arm and body movements will affect containment.
Fume cupboards are used widely in laboratories and are designed to capture and remove air borne hazardous substances generated during laboratory experiments e g. Work undertaken in the fume cupboard is consistent with the level of protection control provided by that system e g. A typical fume hood is a cabinet with a moveable front sash window made out of safety glass. Work with substances that produce generate toxic or harmful fumes vapours gases dust or chemical aerosols should be carried out in a fume cupboard to eliminate or reduce the risk of exposure to an acceptable and safe level.
Fume cupboards are essential in a science lab that uses harmful chemicals which could effect human health. Fume cupboards are used in accordance with the user manual operating instructions. The user must use the fume cupboard in line with the guidance above in order to ensure containment. A properly used and properly functioning fume hood exhausts hazardous gases dusts mists and vapors from a confined location and helps protect workers from inhalation exposure.
Chemistry factsheet using a laboratory fume hood doc.