Print Friendly Page
United Nations/North American Number Datasheet

UN/NA 3492

Emergency Response Guidebook (ERG, 2016)

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.

Material Names

  • Poisonous by inhalation liquid, corrosive, flammable, n.o.s. (Inhalation Hazard Zone A)
  • Toxic by inhalation liquid, corrosive, flammable, n.o.s. (Inhalation Hazard Zone A)
ERG book cover

Response Guide 131

link to a PDF file Flammable Liquids - Toxic

 

ERG Table 1: Initial Isolation and Protective Action Distances

Name of Material Small Spills
(from a small package or small leak)
Large Spills
(from a large package or many small packages)
First
Isolate
in all Directions
Then Protect Downwind First
Isolate
in all Directions
Then Protect Downwind
Day Night Day Night
Poisonous by inhalation liquid, corrosive, flammable, n.o.s. (Inhalation Hazard Zone A) 300 ft 0.6 mi 1.2 mi 1250 ft 2.8 mi 4.6 mi
Toxic by inhalation liquid, corrosive, flammable, n.o.s. (Inhalation Hazard Zone A) 300 ft 0.6 mi 1.2 mi 1250 ft 2.8 mi 4.6 mi

The ERG doesn't predict that large amounts of toxic-by-inhalation gases will be produced if this material is spilled in water.

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.

Note: UN/NA 3492 doesn't appear in the 49 CFR Hazmat Table.