1 / 20
Refer to figure.
What is the meaning of digit “3” on the label?
  • A
    Packing instruction.
  • B
    Hazard class.
  • C
    ID number.
  • D
    UN number.

Refer to figure.

HAZARD CLASS NUMBERS

Numbers 1-9 represent the different hazardous classes and their divisions (class numbers are located at the bottom of the sign - diamond-shaped symbols):

  • Class 1 — Explosives
  • Class 2 — Gases
  • Class 3 — Flammable and combustible liquids
  • Class 4 — Flammable solids
  • Class 5 — Oxidizing substances and organic peroxide
  • Class 6 — Toxic and Infectious substances
  • Class 7 — Radioactive material
  • Class 8 — Corrosives
  • Class 9 — Miscellaneous dangerous goods

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

Keyboard Shortcut Use Keyboard Shortcuts