Compressed gas, toxic, n.o.s. Inhalation Hazard Zone C

Emergency Response Guide No. 123

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

2.3
Poisonous gas

(4) Identification number Help

UN 1955

(5) Packing Group Help

n/a

(6) Labels Help

Poisonous gas (2.3)

(1) Symbols Help


This entry is signed with "G". The letter "G" identifies proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses, in association with the basic description. (See §172.203(k)).

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
3
B14

(8) Packing Authorizations (§173.***) Help

(8A) ExceptionsNone
(8B) Non-bulk302, 305see 49 CFR §173.302, 305
(8C) Bulk314, 315see 49 CFR §173.314, 315

(9) Quantity Limits Help

(9A) Passenger aircraft/railForbidden
(9B) Cargo aircraft onlyForbidden

(10) Vessel stowage Help

(10A) Location
(10B) Other

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

There are no restrictions with hazardous materials, as pointed out in the instructions for using the Segregation Table (see 49 CFR §177.848(e)). But please, refer to following requirements in 49 CFR §177 Subpart B (Loading and Unloading):
  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials.
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles.

Substances with similar name

UN-NumberNameHazard Class
UN 3512Adsorbed gas, toxic, n.o.s. Inhalation hazard zone A2.3
UN 3304Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A2.3
UN 3305Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A2.3
UN 1955Compressed gas, toxic, n.o.s. Inhalation Hazard Zone A2.3
UN 3306Compressed gas, toxic, oxdizing, corrosive, n.o.s. Inhalation Hazard Zone A2.3
UN 3355Insecticide gases, toxic, flammable, n.o.s. Inhalation hazard Zone A2.3
UN 3308Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A2.3
UN 3162Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone A2.3
UN 3309Liquefied gas toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone B2.3
UN 3390Toxic by inhalation liquid, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC506.1
UN 3489Toxic by inhalation liquid, flammable, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC506.1
UN 3382Toxic by inhalation liquid, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC506.1
UN 3490Toxic by inhalation liquid, water-reactive, flammable, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC506.1
UN 3386Toxic by inhalation liquid, water-reactive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC506.1