Health and Safety

Question 1

what are the 4 main laboratory dangers

Answer 1

chemical, physical, biological and radiation

Question 2

what are corrosives

Answer 2

strong alkalis and acids

Question 3

examples of strong alkalis

Answer 3

NaOH and KOH @1M

Question 4

examples of acids

Answer 4

HCl and HNO3 @1M

Question 5

How can poisons hurt you

Answer 5

internalisation routes and quantity/concentration of the poison

Question 6

examples of internalisation routes

Answer 6

swallowing, inhalation and skin

Question 7

what do teratogens do

Answer 7

causes physical malformations in fetus

Question 8

what do mutagens do

Answer 8

causes permanent (heritable) mutation of germ line/cell

Question 9

what do carcinogens do

Answer 9

causes cancer

Question 10

3 outcomes when mixing incompatible chemicals together

Answer 10

explosive reactions, toxic substance production and flammables

Question 11

what are the 4 labelling for waste disposal

Answer 11

corrosive, toxic, hazardous and irritant

Question 12

the 4 stages of disposing waste

Answer 12

classify waste, identify waste steam, treat/package waste, dispose waste

Question 13

what are the colours for the different types of waste

Answer 13

animal (yellow), clinical (orange), radioactive (green), domestic (black), solvent (store)

Question 14

what do you do if equipment is broken/faulty

Answer 14

tell a supervisor/technician

Question 15

when working with biological hazards (animal/human), what do you have to be aware of

Answer 15

pathogens/infections and allergens (fur, saliva, skin)

Question 16

what containment level when handling human blood

Answer 16

CL2

Question 17

before disposing biological waste, what should you do

Answer 17

sterilise the waste

Question 18

example of a radioactive chemical

Answer 18

isotopes (alpha, beta and gamma rays)

Question 19

what kind of shielding do you need for beta and gamma radiation

Answer 19

beta - perspex
gamma - lead

Question 20

what is the procedure when you spill radioactive ssubstance

Answer 20

soak the spillage and mark the area of the spillage with a pen then report the accident to a supervisor/local radiation protection adviser

Question 21

what are the four different fire extinguishers

Answer 21

water, foam, CO2 and powder

Question 22

what is the black fire extinguisher for

Answer 22

CO2 - small fires, especially electrical

Question 23

what is the blue fire extinguisher for

Answer 23

dry powder - for all fires

Question 24

what is the white fire extinguisher for

Answer 24

water - for large fires, wood, paper, textiles

Question 25

what is the fawn/beige fire extinguisher for

Answer 25

foam - for petrol/oil/fats