Occupational Safety and Hazard

Occupational Safety and Hazard

Classes of Fire and their Corresponding Materials

  • Class A: Combustible Materials such as paper, wood, cardboard, and most plastics.
  • Class B: Flammable Liquids (Combustible Liquids) such as petrol, diesel, paint, oil, grease, and paraffin, etc.
  • Class C: Flammable Gases such as LPG gas, Propane, Butane, and Methane.
  • Class D: Combustible Metals such as lithium, potassium, sodium, magnesium, aluminum.
  • Class E: Electrical Fires or Equipment.
  • Class F: Deep Fat Fryers; involves cooking oils and fats.

Classification Of Extinguishers

Water Extinguishers:

Description: Most common extinguisher for class A fire risk.

Colour Label: Bright Red 🔴

Foam Extinguishers:

Description: Common for Class B and also works for Class A.

Colour Label: Cream

Dry Powder (ABC Extinguishers):

Description: Suitable for ABC fires, but not recommended for use in enclosed spaces or on electrical fires as it may cause damage.

Colour Label: Blue 🔵

CO2 Extinguishers:

Description: Used for Class E (electric) fires without causing damage, also effective for Class B fires.

Colour Label: Black

Wet Chemical Extinguishers:

Description: Used for Class F fires involving cooking oils and fats. Also effective for Class A fires.

Colour Label: Yellow 🟡

Classification of Fires and Extinguishers

Class Type of Fire Extinguisher Type
A Ordinary Combustibles Water, Foam, Dry Chemical
B Liquid or Gasoline C02, Dry Chemical, Foam
C Electrical Fires C02, Dry Chemical
D Metal Fires Dry Powder
K Kitchen Fires Wet Chemical