Helpful information

What is a Fume Hood?

Laboratory Fume Hood is a ventilated enclosure designed to contain and exhaust fumes, vapors, mists and particulate matter generated within the hood interior. Fume hood structures are basically boxlike, with an open side (or sides) for access to the interior of the hood.

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What is a Fume Hood?

How do we use fume – hood properly?

Perform all work involving hazardous or volatile materials in a fume hood. Check that the fume-hood is operating correctly before you start work. To check the air flow a strip of paper, tissue, or ribbon can be taped to fume-hood sash.

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How do we use fume – hood properly?

Why do we use a fume-hood?

Inhalation is a major route of entry of chemicals into the body. Chemical fumes and vapours can directly enter our bloodstream and small particles can lodge in the alveolar region of our lungs. A properly designed and operated fume-hood reduces exposure to hazardous fumes, vapours, gases and dusts.

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Why do we use a fume-hood?

What is the difference between FLAMMABLE & COMBUSTIBLE liquids

Flammable liquid means any liquid having a flash point below 100F (37.8C) or higher, the total of which make up 99 percent or more of the total volume of the mixture. Flammable liquids shall be known as Class I liquids. Class I liquids are divided into three classes as follows: Class IA shall include liquids having flash points below 73F (22.8C) and having a boiling point below 100F o(37.8C). Class IB shall include liquids having flash points below 73F (22.8C) and having a boiling point at or above 100F o(37.8C).

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What is the difference between FLAMMABLE & COMBUSTIBLE liquids
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