UN3208

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Metallic substance, water-reactive, n.o.s

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

3 rows in 49 CFR 172.101 for UN3208.

Sym.	Description	Class	PG	Labels	Special provisions	8A	8B	8C	9A	9B	10A	10B
G	Metallic substance, water-reactive, n.o.s	4.3	I	4.3	A7, IB4, W31	None	211	242	Forbidden	15 kg	E	13, 40, 148
G	Metallic substance, water-reactive, n.o.s	4.3	II	4.3	A7, IB7, IP2, IP21, T3, TP33, W31, W40	151	212	242	15 kg	50 kg	E	13, 40, 148
G	Metallic substance, water-reactive, n.o.s	4.3	III	4.3	A7, IB8, IP21, T1, TP33, W31	151	213	241	25 kg	100 kg	E	13, 40, 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 4.3 — Dangerous When Wet Material

See the full class list

Dangerous when wet material (Division 4.3) is a material that, by contact with water, is liable to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 L per kilogram of the material, per hour.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN3206Alkali metal alcoholates, self-heating, corrosive, n.o.s.UN3209Metallic substance, water-reactive, self-heating, n.o.s

Nearby Class 4.3 UN Numbers

UN3134Water-reactive solid, toxic, n.o.s UN3135Water-reactive solid, self-heating, n.o.s.UN3148Water-reactive liquid, n.o.s.UN3170Aluminum smelting by-products or Aluminum remelting by-products UN3292Batteries, containing sodium UN3395Organometallic substance, solid, water-reactive UN3396Organometallic substance, solid, water-reactive, flammable

View the full Class 4.3 list →

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