chemical safety

Question 1

types of injuries caused by chemicals

Answer 1

Immediate, delayed and cumulative

Question 2

route of exposure to chemicals

Answer 2

ingestion- eating or swallowing
across placenta
inhalation
absorption from skin or eyes

Question 3

4 types of effects chemicals could have

Answer 3

allergenic - allergic or hypersenstivie reactions
carcinogenic - cause or increase risk of cancer
mutagenic- cause mutation of germ cells leading to genetically induced malformations
teratogenic- affects foetus

Question 4

risk control strategies for chemical safety

Answer 4

• replace with non hazardous or one of lower hazard
• purchase store and use the smallest amount possible
• use pure reagents as the impuritires may be toxic
• select chemicals more easily contained
• replace syoppers immediately after use
• clearly label all reagents

Question 5

chemical containers must be labelled with

Answer 5

content
hazard warning
safety precautions
date received or prepared
date opened or used
expirey date
manufacturer

Question 6

mention some hazards of chemicals (properties in a way)

Answer 6

toxic, highly toxic, flammable, highly flammable, extremely flammable, oxidising, irritant, corrosive, harmful, explosive

Question 7

regulation and system used in chemical safetyt symbols for EU

Answer 7

regulation: CLP clasification, labelling and packaging of substances and mixtures

system: GHS globally harmonized system of classification and labelling of chemicals

Question 8

what are hazard statements and precautionary statemenst

Answer 8

the hazard statement describes the nature of the hazard of the chemical in the substance or mixture H301- toxic if swallowed

the precautionary statemtne describes recomended measures to minimize or prevent adverse effects resulting from exposure to the hazardous material.
P281- use PPE as required

Question 9

chemical hazard label

Answer 9

developed for fire protection and emergency personell
blue- health hazard
red- fire hazard
yellow- reactivity
white-speciffic hazard

Question 10

safety data sheet

Answer 10

provides all the info about the chemicals: any harms/hazards (PPE which is used and any first aid), how to dispose of it, how to handle it and any special precautions

every user must have the original copy

Question 11

what are the Ocupational Exposure Limits OELs????

Answer 11

they are set limits of the concentration of hazardous compounds that may be in the air, to protect against health effects only. they are important tools for risk assesments and management.

They apply for marketed products and waste and by products

Question 12

storage of chemicals`

Answer 12

away from fire exits/exits, electricity and heat
-area must be adequetly ventilated
- limited access
-grouped by chemical type.