GHS Chemical Hazard Symbols

Hazard Symbols

For recognition purposes, the hazard symbols in the catalog are from Title 49 of the Code of Federal Regulations (CFR), part 172 (DOT), yet the criteria used for assigning hazard symbols is primarily from the American National Standards Institute (ANSI) standard Z129.1 for Hazardous Industrial Chemicals Precautionary Labeling. The hazard symbols in the catalog are provided only as a guide for quick recognition of the acute hazards associated with our chemicals. They are not to be used in lieu of reading the Safety Data Sheet (SDS) nor do they necessarily reflect correct DOT markings. Please refer to 49CFR for correct DOT markings.

Physical Hazard Symbols

Flammable:

  • Flammable gases, category 1
  • Flammable aerosols, categories 1, 2
  • Flammable liquids, categories 1, 2, 3
  • Flammable solids, categories 1, 2
  • Self-reactive substances and mixtures, types B, C, D, E, F
  • Pyrophoric liquids, category 1

 

  • Self-heating substances and mixtures, categories 1, 2
  • Substances and mixtures, which in contact with water, emit flammable gases, categories 1, 2, 3
  • Organic peroxides, types B, C, D, E, F

Explosive:

  • Unstable explosives
  • Explosives, divisions 1.1, 1.2, 1.3, 1.4
  • Self-reactive substances and mixtures, types A, B
  • Organic peroxides, types A, B

Oxidizing:

  • Oxidizing gases, category 1
  • Oxidizing liquids, categories 1, 2, 3
  • Oxidizing solids, categories 1, 2, 3

Compressed Gas:

  • Compressed gases
  • Liquefied gases
  • Refrigerated liquefied gases
  • Dissolved gases

Corrosive:

  • Corrosive to metals, category 1
  • Explosives, divisions 1.5, 1.6
  • Flammable gases, category 2
  • Self-reactive substances and mixtures, type G
  • Organic peroxide, type G

Health Hazard Symbols

Harmful:

  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    • Respiratory tract irritation
    • Narcotic effects 

 

  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
    • the "corrosion" pictogram also appears
    • the "health hazard" pictogram is used to indicate respiratory sensitization   

Toxic:

  • Acute toxicity (oral, dermal, inhalation), categories 1, 2, 3

Health Hazard:

  • Respiratory sensitization, category 1
  • Germ cell mutagenicity, categories 1A, 1B, 2
  • Carcinogenicity, categories 1A, 1B, 2
  • Reproductive toxicity, categories 1A, 1B, 2
  • Specific target organ toxicity following single exposure, categories 1, 2
  • Specific target organ toxicity following repeated exposure, categories 1, 2

 

  • Aspiration hazard, categories 1, 2
  • Acute toxicity (oral, dermal, inhalation), category 5
  • Eye irritation, category 2B
  • Reproductive toxicity – effects on or via lactation

Environmental Hazard Symbols

Environmental Hazard:

  • Acute hazards to the aquatic environment, category 1
  • Chronic hazards to the aquatic environment, categories 1, 2
  • Acute hazards to the aquatic environment, categories 2, 3
  • Chronic hazards to the aquatic environment, categories 3, 4

U.S. Hotlines

Chemical Transportations Emergency Center (CHEMTREC)

1-800-424-9300

National Institute Of Occupational Safety And Health (NIOSH) (Technical Information Source)

1-800-356-4674

National Response Center (Report Spills, Chemical Releases, Radiological Incidents)

1-800-848-6946

Poison Control Center

1-800-848-6946

Substance Identification (Identify Chemical Substances By CAS Number Or Name) 1-800-848-6538

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