TDG Placards
Dangerous goods safety marks give a quick identification of dangerous goods in the event of an emergency situation such as an accident or an accidental release of dangerous goods from a means of containment.
Dangerous goods safety marks are also an awareness tool for people involved in transportation, including truck drivers, train crews, loading dock workers, reception personnel at a lab or a hospital and aircraft loading personnel.
Generally, labels are displayed on small means of containment and placards are displayed on large means of containment.
ILLUSTRATION OF DANGEROUS GOODS SAFETY MARKS
Each class of dangerous goods has assigned to it a label, a placard or both. The labels and placards are illustrated below. Also illustrated is the DANGER placard, the oxidizing gas label and placard, the elevated temperature sign, the fumigation sign, the marine pollutant mark and the orange panel. The size requirements for the signs, the marine pollutant mark and the orange panel are also provided.
CLASS 1, EXPLOSIVES
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Class 1.1, 1.2, 1.3 |
Label and Placard Black: Symbol, numbers, letter and line 5 mm inside the edge for a label and 12.5 mm inside the edge for a placard Orange: Background The symbol is an exploding bomb. |
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Class 1.4 | Label and Placard Black: Numbers, letter and line 5 mm inside the edge for a label and 12.5 mm inside the edge for a placard Orange: Background |
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Class 1.5 | * place for the Compatibility Group Letter |
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Class 1.6 |
CLASS 2, GASES
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Class 2.1, Flammable Gases |
Label and Placard Black or White: Symbol, number and line 5 mm inside the edge for a label and 12.5 mm inside the edge for a placard Red: Background The symbol is a flame. |
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Class 2.2, Non-flammable and Non-toxic Gases |
Label and Placard |
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Class 2.3, Toxic Gases | Label and Placard |
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Oxidizing Gases | Label and Placard |
CLASS 3, FLAMMABLE LIQUIDS
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Class 3, Flammable Liquids | Label and Placard |
CLASS 4, FLAMMABLE SOLIDS, SUBSTANCES LIABLE TO SPONTANEOUS COMBUSTION AND SUBSTANCES THAT ON CONTACT WITH WATER EMIT FLAMMABLE GASES (WATER REACTIVE SUBSTANCES)
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Class 4.1, Flammable Solids |
Label and Placard |
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Class 4.2, Substances Liable to Spontaneous Combustion |
Label and Placard |
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Class 4.3, Water Reactive Substances |
Label and Placard Black or White: Symbol, number and line 5 mm inside the edge for a label and 12.5 mm inside the edge for a placard Blue: Background The symbol is a flame. |
CLASS 5, OXIDIZING SUBSTANCES AND ORGANIC PEROXIDES
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Class 5.1, Oxidizing Substances |
Label and Placard |
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Class 5.2, Organic Peroxides |
Label and Placard |
CLASS 6, TOXIC AND INFECTIOUS SUBSTANCES
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Class 6.1, Toxic Substances |
Label and Placard |
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Class 6.2, Infectious Substances | Label Black: Symbol, number, text and line 5 mm inside the edge White: Background The symbol is three crescents superimposed on a circle. |
CLASS 7, RADIOACTIVE MATERIALS
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Class 7, Radioactive Materials Category I – White |
Label and Optional Placard |
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Class 7, Radioactive Materials Category II – Yellow |
Label and Optional Placard |
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Class 7, Radioactive Materials Category III – Yellow |
Label and Optional Placard |
CLASS 8, CORROSIVES
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Class 8, Corrosives |
Label and Placard |
CLASS 9, MISCELLANEOUS PRODUCTS, SUBSTANCES OR ORGANISMS
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Class 9, Miscellaneous Products, Substances or Organisms | Label and Placard Black: Symbol, number and line 5 mm inside the edge for a label and 12.5 mm inside the edge for a placard White: Background The symbol is 7 black stripes resulting in 13 equally spaced vertical stripes in the upper half. |
For a complete read and listing of other placards visit the Transport Canada TDG clear regs act (section 4)





















