4A.7 Hazards, Risks and Risk assessments

Question 1

what a hazard

Answer 1

something that can cause harm to the user

Question 2

what is risk

Answer 2

the chance of a hazard causing a harm

Question 3

what are pictograms

Answer 3

there are pictures that label a substance to identify its hazard

Question 4

what are the hazards there

Answer 4

health hazard: including warning on skin rashes, eye damage, and ingestion
flammable: can catch the fire of heated or when comes in contact with flames
acute toxicity: can cause life-threatening effects in small quantities
crossive: different a cause skin burn and permanent eye damage

Question 5

diffrenet concentartions…

Answer 5

have different risks

Question 6

what is risk assessment

Answer 6

the identification of the hazards involved in carrying out a procedure, and the control measurements needed to reduce the risk of the hazard

Question 7

what guidelines should be considered when risk assign

Answer 7

1. amount used
   2, the age and experience
2. whether it should be heated or not
3. theater ventilation or fume cupboard should be used

Question 8

what is the control measurement in risk assessments

Answer 8

1. what type of eye protection should be worn
2. the need to wear gloves
3. keeping the cap closed after usage
4. keeping it out of a source of heat
5. what to do if the substances spilled on the floor or on you

Question 9

why should you use instead of mercury thermometer r

Answer 9

a digital or a spirit thermometer

Question 10

what would you use instead of heating with a bunsen flame

Answer 10

an electrical heater