Chemical Hazards under occupational health hazards are
* Inflammable
* Explosive
* Toxic
* Corrosive
* Radioactive

Personal safety includes
Wear a one piece overall or boiler suit.
Keep the overall buttons fastened.
Don't use ties and scarves.
Roll up the sleeves tightly above the elbow.
Wear safety shoes or boots
Cut the hair short.
Don't wear a ring, watch or chain.
Never lean on the machine.
Don't clean hands in the coolant fluid.
Don't remove guards when the machine is in motion.
Don't use cracked or chipped tools.
Don't start the machine until
− the workpiece is securely mounted
− the feed machinery is in the neutral
− the work area is clear.
Don't adjust clamps or holding devices while the machine is in motion.
Never touch the electrical equipment with wet hands.
Don't use any faulty electrical equipment.
Ensure that electrical connections are made by an authorised electrician only.
Concentrate on your work.Have a calm attitude.
Do things in a methodical way.
Don't engage yourself in conversation with others while concentrating on your job.
Don't distract the attention of others.
Don't try to stop a running machine with hands.

Mechanical Hazards under occupational health hazards are
* Unguarded machinery
* No fencing
* No safety device
* No control device etc.,