WHMIS (Ammonia)

Workplace Hazardous Materials Information System

WHMIS 1988 classification - Note to reader
Update: 2003-12-22
  • WHMIS pictogram : Gaz cylinder

    A

  • WHMIS pictogram : Flame

    B1

  • WHMIS pictogram : Skull and crossbones

    D1A

  • WHMIS pictogram : Corrosion

    E

A
  • Compressed Gas 1
  • absolute vapour pressure at 50 °C = 2 070 kPa
B1
  • Flammable Gas 2 3
  • flammable limit - concentration range = 13 %
D1A
  • Very Toxic Material Causing Immediate and Serious Toxic Effects 4
  • acute lethality: LC50 inhalation/4 hours (mice) = 2115 ppm
E
  • Corrosive Material 5
  • Transportation of Dangerous Goods: class 8

Disclosure at 1,0% according to the Ingredient disclosure list

Comments: Due to a Health Canada policy interpretation, the D1 symbol (skull and cross bones) need not to appear on the product label. However, all health and safety hazards for this chemical must be declared on the label and the MSDS.

WHMIS 2015 classification - Note to reader
Update: 2015-02-27

  • Flammable gases - Category 16
    • Flammable limit - concentration range = 13% (15 - 28 %)
  • Gases under pressure - Liquefied gas7
  • Acute toxicity - inhalation - Category 38 9
  • Skin corrosion/irritation - Category 19 10 11 12
    • Forms a corrosive substance upon contact with water: ammonium hydroxide
  • Serious eye damage/eye irritation - Category 19 10 11 12 13
  • Health hazards not otherwise classified (corrosion) - Category 19 10 12 14

  • GHS pictogram : Flame

  • GHS pictogram : Gaz cylinder

  • GHS pictogram : Skull and crossbones

  • GHS pictogram : Corrosion

Danger

Extremely flammable gas (H220)
Contains gas under pressure; may explode if heated (H280)
Toxic if inhaled (H331)
Causes severe skin burns and eye damage (H314)
Causes severe damage to the respiratory tract

Ingredient disclosure

References

The [number] refers to the ISST database of the CSST Documentation Center.