130 likes | 159 Views
HAZARD SYMBOLS SEEN IN THE LABORATORY. GRP 5 TIMOTHY TAN JARED CHIANG HARVEY CU JEFFERSON JO. HOT SURFACE. HOT SURFACE. This sign means that the object has a hot surface. We should not touch anything with our bare hands to avoid getting burned. DON’T GET OR DRINK WATER FROM HERE.
E N D
HAZARD SYMBOLS SEEN IN THE LABORATORY GRP 5 TIMOTHY TAN JARED CHIANG HARVEY CU JEFFERSON JO
HOT SURFACE • This sign means that the object has a hot surface. • We should not touch anything with our bare hands to avoid getting burned.
DON’T GET OR DRINK WATER FROM HERE • The sign means that the water is not potable and not for human consumption. • It may contain substances harmful to our health if taken.
ENVIRONMENTAL HAZARD • These substances pollute or damage the environment.
OXIDISING • This type of substance gives off a large amount of heat when in contact with other substances.
CRYOGENIC HAZARD • It means there is exposure to extremely low temperature. Any substance that cannot withstand such temperature must avoid the vicinity.
SOURCES • http://chemistry.about.com/library/weekly/blhazardsymbolquiz.htm • RANDOM HOUSE WEBSTER’S COLLEGE DICTIONARY • http://www.ngfl-cymru.org.uk/vtc/ngfl/science/103_new/asc1/hazardsymbol.htm