Print Friendly Page
United Nations/North American Number Datasheet

UN/NA 0325

1.4 - Explosives which present no significant blast hazard; G - Substances and articles which may mass explode and give off smoke or toxic gases.

Emergency Response Guidebook (ERG, 2020)

The Emergency Response Guidebook (ERG) provides general response recommendations for first responders.

UN/NA datasheets display several items from the ERG: material names, response guide PDFs, initial isolation and protective action distances, warnings about toxic-by-inhalation gases that may be produced if the material spills in water, and polymerization hazards.

ERG book cover

Response Guide 114

link to a PDF file Explosives* - Division 1.4 or 1.6

Note: Explosives aren't listed by specific names or UN/NA numbers in the ERG; however, they are assigned to response guides based on their division or class.

Hazmat Table (49 CFR 172.101)

The Hazmat Table in 49 CFR 172.101 "lists and classifies those materials which the Department (of Transportation) has designated as hazardous materials for purposes of transportation".

UN/NA datasheets display several items from the Hazmat Table: proper shipping names, hazard classes and divisions (explosives may also include a compatibility group letter label codes, and special notes relating to shipping location, shipping name, and whether the material is an inhalation hazard.

Descriptive text for each label code is shown below the table, along with representative vehicle placards.

UN/NA Proper Shipping Name Hazard Class Labels Notes*

* There are three notes: (1) whether the displayed information is for domestic (U.S.) or international shipping (if neither is specifically indicated, it applies to both), (2) whether the proper shipping name must include one or more technical names of the hazardous material in parentheses, and (3) whether the hazardous material is an inhalation hazard.
UN Igniters 1.4G 1.4G

  1.4 - Explosives which present no significant blast hazard; G - Substances and articles which may mass explode and give off smoke or toxic gases.