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UN Number
UN 2421
The four-digit number assigned by the United Nations to identify hazardous substances in international transport.
Proper Shipping Name
NITROGEN TRIOXIDE
The official and specific name of a hazardous substance as listed in dangerous goods regulations.
Class
2
The designation for hazardous materials based on the type of danger they present.
– Gases
Packing Group
CARRIAGE PROHIBITED
A classification based on the degree of danger of a substance (I: great danger, II: medium danger, III: minor danger).
– Transport of this substance is strictly forbidden under RID regulations.
Classification Code
2TOC
A code that provides more specific information about the properties and hazards of a substance within its class.
– Liquefied gas: toxic, oxidizing, corrosive
Danger labels
CARRIAGE PROHIBITED
– Transport of this substance is strictly forbidden under RID regulations.
Hazard identification number (RID)
-
Hazard identification number (RID)
– No hazard identification number is assigned.
Tank Code
CARRIAGE PROHIBITED
A code that specifies the type of tank required for a particular dangerous substance.
– Transport of this substance is strictly forbidden under RID regulations.
Tank Code
CARRIAGE PROHIBITED
A code that specifies the type of tank required for a particular dangerous substance.
– Transport of this substance is strictly forbidden under RID regulations.
Excepted Quantities
CARRIAGE PROHIBITED
Very small quantities of dangerous goods not subject to certain provisions of the ADR regulations.
– Transport of this substance is strictly forbidden under RID regulations.
Limited Quantities
-
Dangerous goods packed in small quantities with less stringent transport requirements.
Special Provisions
CARRIAGE PROHIBITED
Specific rules or exceptions that apply to the transport of certain dangerous goods.
– Transport of this substance is strictly forbidden under RID regulations.
Packing Instructions
CARRIAGE PROHIBITED
A set of provisions specifying the type of packaging, materials, and methods to be used for a particular dangerous good.
– Transport of this substance is strictly forbidden under RID regulations.
Mixed Packing Provisions
CARRIAGE PROHIBITED
The specific rules regarding the packing of different dangerous goods or of dangerous goods with non-dangerous goods in the same outer packaging.
– Transport of this substance is strictly forbidden under RID regulations.
Portable Tank and Bulk Container Special Provisions
CARRIAGE PROHIBITED
Specific rules or exceptions that apply to the transport of portable tanks and bulk containers.
– Transport of this substance is strictly forbidden under RID regulations.
Portable Tank and Bulk Container Instructions
CARRIAGE PROHIBITED
A set of provisions specifying the type of portable tank and bulk container for a particular substance.
– Transport of this substance is strictly forbidden under RID regulations.
Transport Category
CARRIAGE PROHIBITED
A category assigned to dangerous goods to determine the maximum total quantity that can be carried.
– Transport of this substance is strictly forbidden under RID regulations.
Special provisions for carriage - Loading, unloading and handling
CARRIAGE PROHIBITED
Specific RID rules applying to loading, unloading and handling during carriage of dangerous goods
– Transport of this substance is strictly forbidden under RID regulations.
Special provisions for carriage – Bulk
CARRIAGE PROHIBITED
Specific rules that apply to the bulk carriage of certain dangerous goods.
– Transport of this substance is strictly forbidden under RID regulations.
Special provisions for carriage – Packages (RID)
CARRIAGE PROHIBITED
Specific rules that apply to the carriage of packaged dangerous goods.
– Transport of this substance is strictly forbidden under RID regulations.
Colis express (express parcels)
CARRIAGE PROHIBITED
– Transport of this substance is strictly forbidden under RID regulations.
Special Provisions
CARRIAGE PROHIBITED
Specific rules or exceptions that apply to the transport of certain dangerous goods.
– Transport of this substance is strictly forbidden under RID regulations.
Notes
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“Nothing in life is to be feared, it is only to be understood.”
— Marie Curie