https://www.youtube.com/watch?v=Xn80EAikqjs View this video (perhaps several tim

https://www.youtube.com/watch?v=Xn80EAikqjs
View this video (perhaps several tim

https://www.youtube.com/watch?v=Xn80EAikqjs
View this video (perhaps several times) and list all the Chemical, Biological, Physical and Safety Hazards you can identify