Placarding Requirements – Demo

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Large Means of Containment – Design

TDG_sPG164_001

Safety marks on large means of containment

  • Safety marks must be visible and legible
  • Must have design and colour as per TDGR
  • Must be durable and weather resistance
  • Must be of appropriate size

TDG_sPG165_001

Certain classes require placarding and the UN number at any amount while others require placarding at 500 kilograms or more.

4 placards required for the following:
Shipment of more than 500 kg of DG (placarding does not apply to shipping Limited Quantity)
If required check for ERAP, subsidiary classes liquids or gases in bulk,

  • are in a quantity or concentration for which an emergency response assistance plan is required; or
  • are a liquid or a gas in direct contact with the large means of containment.
  • in the case of a large means of containment that is an intermediate bulk container (IBC)
    with a capacity greater than 450 L but less than or equal to 3 000 L,

TDG_P54_001

Large means of containment greater than 450 L

The following Classes may require placarding under ERAP (Emergency Response Assistance Program) or for quantities of 500 kilograms (1102 lbs) or more, although some exemptions such as limited quantities may apply:

Class 2.1       Flammable Gases
Class 2.2       Non-Flammable Gases
Class 2.3       Toxic Gases
Class 3          Flammable Liquids
Class 4.1       Flammable Solids
Class 4.2       Spontaneous Combustible
Class 4.3       Dangerous When Wet
Class 5.1       Oxidizers
Class 5.2       Organic Peroxides
Class 6.1       Toxics
Class 6.2       Infectious Substances
Class 8         Corrosives
Class 9         Miscellaneous

In addition to the primary class placard and the UN number, some dangerous goods may require a subsidiary placard with the class number and/or a marine pollutant label.

Certain classes require placarding and the UN number at any amount while others require placarding at 500 kilograms or more.

Example of UN number on label:

TDG_sPG170_001TDG_sPG170_002

When the DANGER placard is required to be displayed on a large means of containment, the carrier may continue to display that placard until the large means of containment no longer contains any of the dangerous goods that required the display of that placard.

TDG_P56_002

This placard may be used for Mixed Loads

TDG_sPG175_001

Danger placard may be used for shipments of DG that have:

  • Different UN numbers (no ERAP)
  • Different classes

The DANGER placard referred to in subsection (1) must not be displayed on a large means of containment for:

  1. dangerous goods that have a gross mass greater than 1 000 kg, are included in the same class and are offered for transport by one consignor;
  2. dangerous goods that require an emergency response assistance plan;
  3. dangerous goods included in Class 1, Explosives;
  4. dangerous goods included in Class 2.3, Toxic Gases;
  5. dangerous goods included in Class 4.3, Water-reactive Substances;
  6. dangerous goods included in Class 5.2, Organic Peroxides, Type B, liquid or solid, that require a control or emergency temperature;
  7. dangerous goods included in Class 6.1, Toxic Substances, that are subject to special provision 23; and
  8. dangerous goods included in Class 7, Radioactive Materials, that require a Category III – Yellow label.

The Danger Placard may remain until the large means of containment no longer contains any of the dangerous goods identified by that placard.

The following classes and substances, in any amount, must be placarded:

Liquids or gases contained in a large means of containment, which are greater than 450 litres, requiring an emergency response assistance plan;

  • requiring the display of a subsidiary class placard in accordance with section 4.15.1;
  • included in Class 1, Explosives, except for
  1. explosives referred to in subsection 4.17(1), and
  2. explosives included in Class 1.1, 1.2, 1.3 or 1.5, if

 

  1. the explosives are not subject to special provision 85 or 86 and have a net explosives quantity that is less than or equal to 10 kg, or
  2. the explosives are subject to special provision 85 or 86 and the number of articles of explosives is less than or equal to 1,000;

Note: Class 1 Explosives do not require the UN number on the placard.

  • included in Class 2.1, Flammable Gases, if the road vehicle or railway vehicle is to be transported by ship;
  • included in Class 2.3, Toxic Gases;
  • included in Class 4.3, Water-reactive Substances;
  • included in Class 5.2, Organic Peroxides, Type B, liquid or solid, that require a control or
    emergency temperature;
  • included in Class 6.1, Toxic Substances, that are subject to special provision 23; or
  • included in Class 7, Radioactive Materials, that require a Category III – Yellow label.

TDG_P57_001

Marine Pollutant Label

TDG_P58_001TDG_P58_002 TDG_sPG183_003

When a marine pollutant label is required it must be displayed on all four sides of the container adjacent to the primary class placard.

Elevated Temperature Sign

TDG_P58_003

For UN Numbers UN3256, UN3257, UN3258

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The following Class 2 oxidizing gases must use the oxygen placard instead of the placard required by Schedule 1 in column 3:

  1. UN 1072, oxygen, compressed
  2. UN 1073, oxygen, refrigerated liquid
  3. UN 3156, compressed gas, oxidizing, N.O.S. d)
  4. UN 3157, liquefied gas, oxidizing, N.O.S.

Class 2 Label

TDG_sPG176_001
TDG_sPG177_001TDG_P34_001TDG_P33_001

When transporting Class 2 gases, a danger Placard can not be used, you must apply the appropriate class placards

Question:
What placards and UN numbers are required on a compartmentalized highway tank that contains both UN1202 Diesel Fuel and UN1203 Gasoline?

TDG_sPG184_001

Placarding for compartmentalized tankers

Answer:
Subsection 4.19(2) of the TDG Regulations explains how to display UN numbers for gasoline and diesel fuel.
You must display only the UN number for gasoline (UN1203), since it is the product with the lowest flash point. Gasoline has an approximate flash point of -43 °C, while diesel fuel is around 55 °C.

Note: If a compartment contains UN3475 (ETHANOL / GASOLINE BLEND), the UN number “UN3475” must be displayed, in addition to the UN number of the dangerous goods with the lowest flash point on each side and each end of the compartment.

TDG_sPG186_001 TDG_sPG187_001

Placards and UN numbers are required even for residue liquids or gases. However, once the tank has been cleaned and purged, the placards must be removed.