HomeUN NumbersClass 4.1UN2926
Hazard Class 4.1Packing Group II/III

UN Number

UN2926

Flammable solids, toxic, organic, n.o.s.

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

2 rows in 49 CFR 172.101 for UN2926.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
GFlammable solids, toxic, organic, n.o.s.4.1II4.1, 6.1A1, IB6, IP2, T3, TP3315121224215 kg50 kgB40
GFlammable solids, toxic, organic, n.o.s.4.1III4.1, 6.1A1, IB6, T1, TP3315121324225 kg100 kgB40
  • 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 4.1 — Flammable Solid

See the full class list

Flammable solid (Division 4.1) covers desensitized explosives, self-reactive materials that are thermally unstable and can undergo exothermic decomposition without participation of oxygen, and readily combustible solids.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN2925Flammable solids, corrosive, organic, n.o.s.UN2927Toxic liquids, corrosive, organic, n.o.s.

Nearby Class 4.1 UN Numbers

UN2858Zirconium, dry, coiled wire, finished metal sheets, strip (thinner than 254 microns but not thinner than 18 microns)UN2878Titanium sponge granules or Titanium sponge powdersUN2907Isosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphateUN29565-tert-Butyl-2,4,6-trinitro-m-xylene or Musk xyleneUN2989Lead phosphite, dibasicUN3089Metal powders, flammable, n.o.sUN3097Flammable solid, oxidizing, n.o.s
View the full Class 4.1 list →

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