CLASS

DENOMINATION

1

Explosives.

2

Compressed, refrigerated, liquefied or pressure dissolved gases.

3

Flammable liquids.

4

Flammable solids.

5

Oxidizers and organic peroxides.

6

Acute toxins (poisons) and infectious agents.

7

Radioactive

8

Corrosive

9

Various.

DIVISION

DESCRIPTION OF THE SUBSTANCES

1.1

Substances and objects that represent a risk of explosion of the entire mass, that is, the explosion extends almost instantaneously to almost the entire load.

1.2

Substances and objects that represent a risk of projection, but not a risk of explosion of the entire mass.

1.3

Substances and objects that represent a risk of fire and that there are small effects of blast, of projection or both, but not risk of explosion of the entire mass.

The following substances and objects are included in this division:

a) Those whose combustion results in considerable thermal radiation.

b) Those who burn successively with small blast, projection, or both effects.

1.4

Substances and objects that do not represent a considerable risk.

1.5

Very sensitive substances that present a risk of explosion of the entire mass, but that its initiation or transition of fire or detonation under normal transport conditions is very unlikely.

1.6

Extremely insensitive objects that do not present a risk of explosion to the entire mass, which contain only substances extremely insensitive to detonation and show a very low probability of accidental initiation and propagation.

DIVISION

DESCRIPTION OF THE SUBSTANCES

2.1

Flammable gases: Substance that at 20º C and at a normal pressure of 101.3 kPa.: They burn when they are in a mixture of 13% or less by volume of air or have a range of flammability with air of at least 12% regardless of the lower limit of flammability.

2.2

Non-flammable, non-toxic gases: Gases that are transported at a pressure of not less than 280 kPa. at 20 ° C, or as a refrigerated liquid and that:

a) They are suffocating. Gases that dilute or replace the oxygen normally present in the atmosphere; or

b) They are oxidizers. Gases that can, generally by yielding oxygen, cause or contribute, more than air to the combustion of another material.

c) They do not fit in the previous ones.

2.3

Toxic gases: Gases that:

(a) They are known to be toxic or corrosive to humans and therefore constitute a health risk; or

b) They are supposed to be toxic or corrosive to humans because they have a CL equal to or less than 5000 Mo / M3 (ppm).

DIVISION

DESCRIPTION OF THE SUBSTANCES

4.1

Flammable solids. Solid substances that are not included in those classified as explosive but which, by virtue of the conditions that occur during transport, are inflamed easily or can cause or start fires by friction.

4.2

Substances that present a risk of spontaneous combustion. Substances that can spontaneously heat up under normal transport conditions or when they come into contact with the air and which can then ignite.

4.3

Substances that in contact with water emit flammable gases. Substances that by reaction with water can become spontaneously flammable or release flammable gases in dangerous quantities.

DIVISION

DESCRIPTION OF THE SUBSTANCES

5.1

Oxidizers substances that, without necessarily being combustible, can generally release oxygen, cause, or facilitate the combustion of others.

5.2

Organic peroxides Organic substances that contain the bivalent structure -0-0- and can be considered derivatives of hydrogen peroxide, in which one of the hydrogen atoms, or both, have been replaced by organic radicals. Peroxides are thermally unstable substances that can undergo self-accelerated exothermic decomposition. In addition, they can have one or more of the following properties:

(a) Be susceptible to explosive decomposition;

b) Burn quickly;

c) Be sensitive to impacts or friction;

d) React dangerously when coming into contact with other substances;

e) Cause eye damage.

DIVISION

DESCRIPTION OF THE SUBSTANCES

6.1

Acute toxins (poisons): Are those substances that can cause death, serious injury or be harmful to human health if ingested, inhaled or come into contact with the skin.

Compressed toxic gases (poisons) can be included in the "Gas" class.

6.2

Infectious agents: Are those that contain viable microorganisms including bacteria, viruses, parasites, fungi, or a hybrid or mutant combination; that are known or believed to cause disease to mankind or animals.