As long as there is a UN symbol on the package, it must be dangerous goods

Here is the definition of dangerous goods I made:

< p>1. Dangerous goods refer to items or substances that may endanger personal safety and health or damage transportation tools, equipment and other property during air transportation.

2. The transportation of dangerous goods must comply with the laws, administrative regulations and other relevant regulations of our country and the relevant countries during the transportation process.

Dangerous goods that are absolutely prohibited from air transport:

(1) Explosives capable of spontaneous combustion or decomposition within 48 hours at a temperature of 75 degrees Celsius;

( 2) Explosives containing both chlorate and ammonium salt;

(3) Explosives containing a mixture of chlorate and phosphorus

(4) Extremely sensitive to mechanical vibration Sensitive solid explosives;

(5) Liquid explosives that are sensitive to mechanical vibration;

(6) Dangerous heat or gases that are prone to generate under normal air transport conditions Any items;

(7) Flammable solids and organic peroxides that have been proven to be explosive by testing, that is, according to the dangerous goods classification procedures, their packages are required to be labeled with explosives as a secondary risk Label flammable solids and organic peroxides.

Classification of dangerous goods:

Dangerous goods are divided into nine categories according to their different hazards, and some categories are further divided into several items.

Class 1 Explosives

Items or substances in Item 1.1 that have a mass explosion risk;

Item 1.2 that have a projectile hazard but no mass explosion hazard Objects or substances;

Items or substances in item 1.3 that have a fire risk, a small explosion and/or a small projectile risk but no overall explosion risk;

Item 1.4 Items and substances that do not present significant hazards;

Item 1.5 Substances that have a general explosion risk but extremely low sensitivity;

Item 1.6 have no overall explosion risk and are sensitive Substances with extremely low densities.

Class II gases

Item 2.1 flammable gases

Item 2.2 non-flammable, non-toxic gases;

Item 2.3 toxicity Gas

Category 3 flammable liquids

Category 4 flammable solids, self-igniting substances, substances that release flammable gas when exposed to water

Item 4.1 Flammable Solid;

Item 4.2 spontaneous combustion substances;

Item 4.3 substances that release flammable gases when exposed to water.

Item 5 Oxidants and Organic Peroxides

Item 5.1 Oxidants;

Item 5.2 Organic Peroxides.

Category 6 toxic (poisonous) substances and infectious substances

Item 6.1 toxic substances;

Item 6.2 infectious substances.

Category 7 Radioactive Substances

Category 8 Corrosive Materials

Category 9 Miscellaneous Dangerous Materials