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HomeUN NumbersClass 2.2UN3164
Hazard Class 2.2

UN Number

UN3164

Articles, pressurized pneumatic or hydraulic containing non-flammable gas

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

One row in 49 CFR 172.101 for UN3164.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Articles, pressurized pneumatic or hydraulic containing non-flammable gas2.2—2.2371306302, 304NoneNo limitNo limitA—
  • Sym.: Column 1 symbols, 49 CFR 172.101(b).
  • Description: Column 2, the proper shipping name, 172.101(c).
  • Class: Column 3, hazard class or division, 172.101(d).
  • PG: Column 5, packing group, 172.101(f).
  • Labels: Column 6, label codes, 172.101(g).
  • Special provisions: Column 7, codes explained in 49 CFR 172.102, 172.101(h).
  • 8A / 8B / 8C: Packaging exceptions, non-bulk and bulk sections of 49 CFR part 173 (an entry of 202 means 173.202), 172.101(i).
  • 9A / 9B: Maximum quantity per package on passenger aircraft or rail, and on cargo aircraft only, 172.101(j).
  • 10A / 10B: Vessel stowage location and other stowage and handling codes, 172.101(k).

Division 2.2 — Non-Flammable, Non-Poisonous Gas

See the full class list

A non-flammable, nonpoisonous compressed gas (Division 2.2) exerts a gauge pressure of 200 kPa (29.0 psig) or greater at 20°C (68°F), is a liquefied gas or a cryogenic liquid, and does not meet the definition of Division 2.1 or 2.3.

Source: 49 CFR 173.115 (eCFR).

Previous / next UN number

UN3163Liquefied gas, n.o.s.UN3165Aircraft hydraulic power unit fuel tank (containing a mixture of anhydrous hydrazine and monomethyl hydrazine) (M86 fuel)

Nearby Class 2.2 UN Numbers

UN3157Liquefied gas, oxidizing, n.o.s.UN3158Gas, refrigerated liquid, n.o.s. (cryogenic liquid)UN31591,1,1,2-Tetrafluoroethane or Refrigerant gas R 134aUN3220Pentafluoroethane or Refrigerant gas R 125UN3296Heptafluoropropane or Refrigerant gas R 227UN3297Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxideUN3298Ethylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide
View the full Class 2.2 list →

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