To apply a UN number from the dangerous goods list, the first step is to select the dangerous goods regulation and navigate to its details.
Usually, you start identification on the regulation with which you are most familiar.
In this example, the regulation is the IMDG code.

Classifying the Unpackaged Product as a Dangerous Good
The initial step is to classify the unpackaged product as a dangerous good.
The next step is to assign the UN number from the Dangerous Goods List.

Select UN Number
The search works with numerals to directly search the UN number and with text to retrieve the applicable entry by using the proper shipping name.
Your next task involves completing the details of the classification for the unpackaged product.

Example of Classification Details
The following image and text outline examples of classification details.

The following are some examples of classification details:
- Classified as the UN number: This is the initial entry to identify the unpackaged as a dangerous good.
- Proper shipping name, risks, and packing group: These details originate from the dangerous goods list selected item and relate to the entries of 1.
- Qualifying words used as prefixes or suffixes can be required to supplement the proper shipping name, such as the prefix WASTE or the suffix SOLUTION.
- If the selected UN number is a collective entry from the dangerous goods list, the system automatically provides an entry option to assign up to 3 technical names to indicate the substances causing the product's hazards.
- Depending on their ecotoxicological properties, products must be indicated as marine pollutants or environmentally hazardous. This includes naming the respective substances, which can be selected from the analytical composition.
- The link View Regulatory Data allows you to navigate to the details of the assigned line from the dangerous goods list in the View Regulatory Data app.
- Segregation groups and segregation codes are relevant for classifications according to the IMDG Code. If an assignment is given in the dangerous goods list, this is shown. When classifying a product, the specific hazards associated with it must be evaluated, which can result in a product-specific assignment of segregation groups or segregation codes.
Indicate Marine Pollutant and Assign Marine Pollutant Substance
When you classify a dangerous goods product, some regulations require you to check if it is environmentally hazardous or must be identified as a marine pollutant. The latter applies to the example of a classification according to IMDG.
When you tick the indicator Marine Pollutant, the term MARINE POLLUTANT is added to the dangerous goods description automatically, and an additional field opens to specify the related substance.

When you edit this additional field, a pop-up opens to select the relevant marine pollutant substance.

You can identify the marine pollutant substance by its analytical composition or by comparing it with all substances that are company substances. The substances listed on the regulation's marine pollutant substance list - here, the IMDG marine pollutant substance list, which also addresses substance groups - are indicated.

The selected substance is automatically inserted into the basic description of dangerous goods. If you apply changes afterwards, do not forget to update technical names using the 'Update Technical Names' action.
This also applies to reportable substances as per US regulation CFR 49.
Let's Summarize What You've Learned
Begin classification by identifying the unpackaged product as a dangerous good and assigning a UN number from the list.
Use numerals and text to search for UN numbers and proper shipping names for classification details.
Include prefixes or suffixes to proper shipping names and assign technical names for collective entries.
Indicate marine pollutants and assign related substances when required by regulations like the IMDG Code.
Update technical names and reportable substances as needed, ensuring compliance with relevant regulations.