i)

Danger involved in eating or drinking water in the laboratory

May result in the drinking of poisonous substances or eating contaminated foods.

ii)

Danger involved in washing hands with unknown liquid in a beaker

May result in burns/irritation/injury

iii)

Danger involved in walking barefooted

1. May result in slipping if there is water on the floor.

2. A person/One may get pricked with pieces of broken bottles/pins

3. A person/One may get burnt

(α)

Gas mask

Inhaling of toxic or poisonous gas

(β)

Goggles

Injury to the eye

i)

Hazard is a danger/risk that could result in physical harm to people/damage to property or is any source of potential damage/harm/adverse health effect on something/someone.

ii)

Precautions against hazard

1. Wearing of protective clothing/boots/goggles
2. Routine maintenance of equipment
3. Closing all taps before leaving the laboratory
4. Switching off all electrical points
5. Mounting hazard signs of dos and don'ts in the laboratory/working area etc.
6. Avoid skin and eye contact with chemicals
7. Use equipment only for its designated purpose
8. All containers must have appropriate labels. Unlabeled chemicals should never be used
9. Do not taste or intentionally sniff chemicals
10. Never consume and/or store food or beverages or apply cosmetics in areas where hazardous chemicals are used or stored
11. Wash exposed areas of the skin prior to leaving the laboratory
12. Do not work alone in a laboratory if the procedures being conducted are hazardous