Field codes IN KNUNNR | OUT WIUNNR | API unNumber | Max Length 5
Definition
This field specifies whether the item is classified as dangerous goods by stating its UN number.
Explanation
A UN number (also known as an FN number) is a four-digit international code used to identify hazardous substances, materials, and products during transport. The number is established by the United Nations (UN) and is used globally so that emergency services and transport operators can quickly identify risks in case of accidents. These numbers are often displayed on orange plates on vehicles.
UN numbers are therefore used to identify substances and products classified as dangerous goods under applicable transport regulations. If the item is subject to these rules, the relevant UN number must be provided. In such cases, the field is mandatory.
By searching for a UN number or substance name, important information can be obtained about how the product must be handled, such as package labelling requirements, special provisions, limitations for limited or calculated quantities, and what information must be included in transport documents, including tunnel category.
More information about UN numbers is available from the Swedish Civil Contingencies Agency (MSB).
Usage
The supplier specifies the correct UN number when the item is classified as dangerous goods.
Finfo verifies that the stated UN number exists in MSB’s current list of dangerous goods.
Recipients use the information to ensure correct labelling, documentation, and transport handling in accordance with applicable regulations.