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HomeUN NumbersClass 4.2UN2793
Hazard Class 4.2Packing Group III

UN Number

UN2793

Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

One row in 49 CFR 172.101 for UN2793.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating4.2III4.2A1, A19, B134, B136, IB8, IP3, IP7, IP21, W100None21324125 kg100 kgA13, 148
  • 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 4.2 — Spontaneously Combustible Material

See the full class list

Spontaneously combustible material (Division 4.2) includes a pyrophoric material — a liquid or solid that, even in small quantities and without an external ignition source, can ignite within five minutes after coming in contact with air — and self-heating material.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN2790Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by massUN2794Batteries, wet, filled with acid, electric storage

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