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HomeUN NumbersClass 3UN1228
Hazard Class 3Packing Group II/III

UN Number

UN1228

Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

2 rows in 49 CFR 172.101 for UN1228.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.3II3, 6.1IB2, T11, TP2, TP27150202243Forbidden60 LB40, 95, 102
—Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.3III3, 6.1B1, IB3, T7, TP1, TP281502032425 L220 LA40, 95, 102
  • 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).

Class 3 — Flammable Liquid

See the full class list

A flammable liquid (Class 3) is a liquid having a flash point of not more than 60°C (140°F), or any material in a liquid phase with a flash point at or above 37.8°C (100°F) that is intentionally heated and offered for transportation at or above its flash point in a bulk packaging.

Source: 49 CFR 173.120 (eCFR).

Previous / next UN number

UN1224Ketones, liquid, n.o.s.UN1229Mesityl oxide

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