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Dangerous goods safety marks are required to be displayed on  any tank container containing dangerous goods in transport.  Dangerous goods safety marks include labels, placards, orange panels, signs, marine pollutant marks, numbers or words used to identify dangerous goods and to show the nature of the danger they can pose.

Dangerous goods safety marks are an awareness tool for people involved in transportation, including truck drivers, train crews, loading dock workers, reception personnel and people at discharge sites.  The safety marks also give a quick identification of dangerous goods in the event of an emergency situation such as an accident or an accidental release of the dangerous goods from a means of containment.

The safety marks must be visible, legible and displayed against a background of contrasting colour.  They have to be made of durable and weather-resistant material that will withstand the conditions to which they will be exposed without substantial detachment or deterioration of their colour, symbols, text or numbers.

The transport and safety labelling of dangerous goods follows regulations for rail (RID), road (ADR) and ship (IMO, IMDG).  These regulations have slight differences per mode of transport, but the general classification of dangerous goods is identical.

• class 1: Explosives
• class 2: Gases (flammable, non-flammable, toxic)
• class 3: Flammable liquids (classified according to flashpoint)
• class 4: Flammable solids, substances liable to spontaneous combustion and substances which in contact with water emit flammable gases
• class 5: Oxidising substances and organic peroxides
• class 6: Toxic and infectious substances
• class 7: Radioactive substances
• class 8: Corrosives
• class 9: Miscellaneous dangerous substances

 

For Huktra, the categories of dangerous goods that are carried regularly are class 3, class 6.1, class 8 and class 9.

	class 3: Flammable liquids -symbol: flame -symbol, number and line 5 mm inside the edge for a label and 12,5 mm for a placard -symbol, number and line color: black or white -background: red
	class 6.1: Toxic substances -symbol: skull & crossbones -symbol, number and line 5 mm inside the edge for a label and 12,5 mm for a placard -symbol, number and line color: black -background: white
	class 8: Corrosives -symbol: liquids spilling from two glass vessels and attacking a hand and a metal bar -symbol, number and line 5 mm inside the edge for a label and 12,5 mm for a placard -symbol and line color: black -number: white -background: upper half white, lower half black
	class 9: Miscellaneous dangerous substances -symbol: 7 black stripes resulting in 13 equally spaced vertical stripes in upper half -symbol, number and line 5 mm inside the edge for a label and 12,5 mm for a placard -symbol, number and line color: black -background: white

 

Next to the safety marks specifying the class to which the dangerous goods belong, there is also another safety label, specifying the nature of the danger and the UN identification number of the goods.  This Hazard Identification Number Placard (or Kemlar sign) clearly indicates that a transport unit carries dangerous goods, and what the nature is of the danger of the goods.  The background of the placard is orange.  The border, horizontal line, and figures are black.

Identification numbers are shown in such a way, that the upper number is indicating the danger and the lower number identifies the substances with the UN-number given in the UN Recommendations on the Transport of Dangerous Goods.  The hazard identification number consists of two or three figures indicating the following hazards:

2 - Emission of gas due to pressure or chemical reaction
3 - Flammability of liquids (vapours) and gases or self-heating liquid
4 - Flammability of solids or self-heating solid
5 - Oxidizing (fire-intensifying) effect
6 - Toxicity
7 - Radioactivity
8 - Corrosivity
9 - Risk of spontaneous violent reaction

Doubling of a figure indicates an intensification of that particular hazard.  For example: 33, highly flammable liquid (flashpoint lower than 23°C).  Where the hazard associated with a substance can be adequately indicated by a single figure, this is followed by a zero.  If a hazard identification number is prefixed by letter 'X', this indicates that the substance will react dangerously with water.  Some examples of hazard identifcation number combinations:

X338 - Highly flammable liquid, corrosive, which reacts dangerously with water
63 - toxic or harmful substance, flammable (flash point between 23°C and 61°C)
X80 - corrosive or slightly corrosive substance, which reacts dangerously with water
90 - environmentally hazardous substance; miscellaneous dangerous substance

 

 

In addition to the requirements for placards and UN numbers considering classification, nature and identification of hazardous goods, the elevated temperature sign must be displayed for dangerous goods that are in transport and that are:

• elevated temperature liquid, flammable, N.O.S., UN3256

• elevated temperature liquid, flammable, N.O.S., UN3257

• elevated temperature solid, flammable, N.O.S., UN3258

Elevated temperature -symbol: thermometer -symbol and border: red -background: white

 

 

For specific transport of dangerous goods by sea, an additional label exists, identifying marine pollutant dangerous goods.

Marine pollutant -symbol: fish with X on top, inside an isosceles triangle -symbol and text: black -background: white

 

 

 

  

• a different look on safety labels