Dry Chem Extinguisher

Question 1

Dry Chem - USE

Answer 1

Class A, B, C, E fires. Especially effective for B and C.

Question 2

Dry Chem - CONSTRUCTION

Answer 2

Welded steel cylinder.
9kg of dry chem powder.
Pressurised with an inter gas, usually nitrogen.
Valve assembly at the top with squeeze handle connected to an internal pick up tube.
Delivery hose.
Pressure gauge.
Locking pin.

Question 3

Dry Chem - OPERATION

Answer 3

P - Remove locking pin
A - Aim at base of fire
S - Squeeze handle
S - Sweep

Discharge 45-60 seconds
Range 4 meters

Question 4

Dry Chem - MAINTENANCE

Answer 4

Virtual inspection at change of shift.
Check pin and pressure.
After use send to zone station for exchange.

Question 5

Dry Chem - SAFETY

Answer 5

Wear FFing uniform.
Offers limited protection.
Change of re ignition.
Can displace oxygen.