Guide for Carriage of Hazardous Materials

Gases which ignite on contact with an ignition source, such as acetylene and hydrogen.

Gases which are neither flammable nor poisonous. Includes the cryogenic gases/liquids (temperatures of below -100°C) used for cryopreservation and rocket fuels, such as nitrogen and neon.

Gases liable to cause death or serious injury to human health if inhaled; examples are fluorine, chlorine, and hydrogen cyanide.

If they have an initial boiling point of 35°C or less at an absolute pressure of 101.3 kPa and any flash point, such as diethyl ether or carbon disulfide;

If they have an initial boiling point of 35°C or less at an absolute pressure of 101.3 kPa and any flash point, such as diethyl ether or carbon disulfide;

If the criteria for inclusion in Packing Group I or II are not met, such as kerosene and diesel.

Solid substances that are easily ignited and readily combustible (nitrocellulose, magnesium, safety or strike-anywhere matches).

Spontaneously Combustible: Solid substances that ignite spontaneously (aluminium alkyls, white phosphorus).

Solid substances that emit a flammable gas when wet or react violently with water (sodium, calcium, potassium, calcium carbide).

Oxidizing agents other than organic peroxides (calcium
hypochlorite, ammonium nitrate, hydrogen peroxide,
potassium permanganate).

Organic peroxides, either in liquid or solid form (benzoy
peroxides, cumene hydroperoxide).

6.1a Toxic substances which are liable to cause death or serious injury to human
health if inhaled, swallowed or by skin absorption (potassium cyanide, mercuric
chloride).

6.1b (Now PGIII) Toxic substances which are harmful to human health (N.B this
symbol is no longer authorized by the United Nations) (pesticides, methylene
chloride).

Biohazardous substances; the World Health Organization (WHO) divides this
class into two categories: Category A: Infectious; and Category B: Samples
(virus cultures, pathology specimens, used intravenous needles).

sulfuric acid, hydrochloric acid

potassium hydroxide, sodium hydroxide

Hazardous substances that do not fall into the other categories (asbestos,
air-bag inflators, self inflating life rafts, dry ice).