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HomeUN NumbersClass 4.1UN2557
Hazard Class 4.1Packing Group II

UN Number

UN2557

Nitrocellulose, with not more than 12.6 percent nitrogen, by dry mass mixture with or without plasticizer, with or without pigment

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

One row in 49 CFR 172.101 for UN2557.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Nitrocellulose, with not more than 12.6 percent nitrogen, by dry mass mixture with or without plasticizer, with or without pigment4.1II4.144, W31None212None1 kg15 kgD28, 36
  • 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

UN2556Nitrocellulose with alcohol with not less than 25 percent alcohol by mass, and with not more than 12.6 percent nitrogen, by dry massUN2558Epibromohydrin

Nearby Class 4.1 UN Numbers

UN2448Sulfur, moltenUN2538NitronaphthaleneUN2555Nitrocellulose with water with not less than 25 percent water, by massUN2623Firelighters, solid with flammable liquidUN2687Dicyclohexylammonium nitriteUN2714Zinc resinateUN2715Aluminum resinate
View the full Class 4.1 list →

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