T.W.G.Hs. Mrs. Wu York Yu Memorial College
Chemistry Laboratory Regulations and
( only for F.3 - F.6 )
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- ALWAYS wear Safety Goggles
or Glasses in the Chemistry Laboratory.
- BENCHES and balances must be
kept clean and tidy. Chemicals spilled on bench/balance must be properly cleaned.
- GLASS rods or tubing should
never be forced into rubber bungs or corks; proper boring technique should
- INFLAMMABLE liquid should never
be used/placed near a naked flame. Sources of ignition nearby should also
- JOTTING down data ( such as
weighing or reading from an instrument ) on a filter paper or any loose sheet
should be avoided.
- KNOW the nature of the experiment
to be performed, and the sorts of potential hazards associated with.
- LOOKING into a test tube or
a flash containing chemicals should not be attempted.
- NEVER work alone in a laboratory
unless another person is within call.
- OVENS and fume cupboards should
not be used unless they are properly ventilated.
- PIPETTING toxic or volatile
chemicals by mouth is very risky. Use a pipette-filler.
- QUANTITIES of chemicals used
for an experiment should be properly worked out beforehand to avoid undue
excess and waste.
- REAGENT bottles must be kept
in their proper places. Use only one at a time and return in proper and clear
- SMOKING, eating and drinking
are forbidden in the laboratory or the chemical store.
- TOXIC chemicals should be handled
with great care. Necessary precaution should be exercised.
- UNDIVIDED and continuous attention
should be focused on preparations and distillations.
- VIGOROUS agitation of chemicals
should be minimized or avoided.
- WHEN highly reactive reagents
are to be used for an experiment, the suitable working place should be in
a well-ventilated fume-cupboard, behind a safety screen.
- NEVER write anything on the
laboratory benches and stools.