Terminology
What does PPE stand for?
Personal Protective Equipment
What is a pipette used for?
Measuring a known volume
Name a type of Biological Hazard.
Pathogens
Blood
Bioactive compounds i.e Hormones
What does GLP stand for?
Good Laboratory Practice
What are the two types of balances in a lab?
Rough Balance
Analytical Balance
Name two things one must not do in the labs
-Avoid: eating, drinking, chewing, using mobile phones, applying make-up, kissing
-Don’t rush, walk calmly in the lab
-Hair, hats and scarfs must be secured. Long hair must be tied back and tucked inside the lab coat
What does it mean when a chemical is corrosive?
Chemicals that may destroy living tissue on contact.
What is the type of error commonly seen when measuring volumes? And how does one avoid them?
Paralax errors
Keep eyes perpendicular the meniscus
What does PPE include? Name three
Eye protection
Protective gloves
Protective clothing
Respirators
What does COSHH stand for?
Control of Substances Hazardous to Health
What is fractional distillation and name a practical application of it?
Separating two liquids of different boiling points.
Refining petroeum
Name four substances Hazardous to Health according to COSHH.
Chemicals
Fumes
Dust
Vapours
Mists
Gases
Biological Agents
Nanotechnology
What is the difference between Hazard and Risk?
Hazard - Potential to Harm
Risk - Likelihood that harm would result from Hazard
What specific type of Glass is used to make the glassware in labs? Give two reasons why.
Borosilicate Glass
-very low coefficients of thermal expansion which makes them more resistant to thermal shock to any other common glass
-Can stand temperatures up to 165ºC (297ºF)
-High temperatures resistance is very important not only for lab experiments but also for proper glassware decontamination
Name five types of Chemical Hazards.
Flammable
Corrosive
Mutagenic
Toxic
Irritant