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Chapter 1 Safety Measure in the Laboratory, 1.1 Personal protective…
Chapter 1 Safety Measure in the Laboratory
https://www.youtube.com/watch?v=5VfBSnKDR2M&list=PL6jWBKPnmJvqVsumt6RhsH-blYovP0xq6&ab_channel=billyacademy
https://www.youtube.com/watch?v=nAAkoTrKhSc&list=PL6jWBKPnmJvqVsumt6RhsH-blYovP0xq6&index=2&ab_channel=billyacademy
https://www.youtube.com/watch?v=1W4m1P92NTU&list=PL6jWBKPnmJvqVsumt6RhsH-blYovP0xq6&index=3&ab_channel=billyacademy
1.1 Personal protective equipment
Glove-- to protect the hands from toxic有毒 chemical substances物质
Closed shoes-- to protect the feet from chemical spill倒出来 or glass pieces.
Lab coat-- to protect the body and clothes
Googles-- to protect the eyes from chemical splash喷溅
face mask-- to protect the nose from inhailing吸入 strong chemical smell and dust.
SOP for biology waste disposal
Non sharp wastes
Used tissues, cotton wools and gloves
place the wastes into biohazard plastic bags
waste collected must be autoclaved before being disposed of
Carcasses, organs or tissues of organisms
Animal carcasses, animal or plant tissues, biological specimens
Wrap the wastes in tissue paper and put into biohazard plastic bags
Wastes are refrigerated before disposed of in an incinerator焚化炉
Sharp wastes
Syringe needles, glass slides, glass pipettes
Place the wastes in sharps waste bins before disposal
Bodily fluid waste
Blood, saliva唾液, serum
Wastes are decontaminated消毒 in autoclave machines
Dispose of wastes directly into the sewage system下水道 through the laboratory sinks or toilets.
Personal Protective Equipment In The Laboratory
Biological safety cabinet-- protect the user and surrounding from pathogens
https://www.youtube.com/watch?v=Wx1DxTUyAhM&ab_channel=DrKimmitt
Fume chamber-- to carry out experiment with substances that are volatile, poisonous, corrosive or air pollutants
https://www.youtube.com/watch?v=WlEgeQoqZkQ&ab_channel=SupremeScience
Laminar flow cabinet-- prepare a sterile condition for carry out activities with microbiology
https://www.youtube.com/watch?v=uA-Xj10oKbs&ab_channel=ZoologyHRC
Steps to handle accidents in the laboratory
A. Accidents of chemical substances spillage
prevent the spillage from spreading using sand
4.scoop the spilled chemical substances
Make the spill area as restricted area
5.throw away safely
inform the teacher or laboratory assistance
B.Accidents of mercury spillage
make the spill area as restricted area
pour sulphur to cover the spill
1.inform teacher o laboratory assistance
inform the fire department
C. Mercury is toxic
1.can attack the nervous system, digestive tract, reproductory system and kidneys.
Emergency equipment in the laboratory
Safety shower-- to clean and rinse the body and clothing that contact with spillages of chemical immediately
Eyewash station-- to rinse and clean the eyes that have come contact with chemical substances.
Disposal of waste
Can be thrown into the sink
Substance with PH value between 5 to 9, solution with low concentration
Cannot be thrown into the sink
Solid waste, substance with PH value less than 5 or more than 9, organic solvent, toxic substance, heavy metal, organic waste
Ways to dispose toxic chemical substances
treat the waste before dispose
store in a close container and is labelled标记
Notes
http://www.andrewchoo.com/wp-content/uploads/2020/03/2020-F4-SCIENCE-NOTES-KSSM-CHAPTER-1-3.pdf
Quizizz