What is UN 3543?
UN 3543: Articles containing a substance which in contact with water emits flammable gases, n.o.s.. US class 4.3; PG not listed.
- UN number
- UN 3543
- Proper shipping name (first listed)
- Articles containing a substance which in contact with water emits flammable gases, n.o.s.
- US class or division (first name)
- 4.3
- Packing groups (first name)
- not listed
- Source rows for this UN number
- 1
- Table jurisdiction
- United States HMT; not an ADR table
- Version
- 49 CFR 172.101, revised 1 October 2025
- Official source
- US Government Publishing Office, 49 CFR 172.101 HMT
Source row 336
Proper shipping name: Articles containing a substance which in contact with water emits flammable gases, n.o.s..
Full column-2 description: Articles containing a substance which in contact with water emits flammable gases, n.o.s.
US hazard class or division: 4.3. Packing group: Not listed (blank in source).
Column-1 symbols: G.
Before shipping
Check the current ADR edition before shipping. This is a US HMT reference snapshot, not ADR classification or shipping, legal or safety advice.
This page omits the other HMT columns. Check the full official table, its symbols and applicable provisions for your consignment.
Found a data error?
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