What is UN 1556?
UN 1556: Arsenic compounds, liquid, n.o.s.. US class 6.1; PG I, II, III.
- UN number
- UN 1556
- Proper shipping name (first listed)
- Arsenic compounds, liquid, n.o.s.
- US class or division (first name)
- 6.1
- Packing groups (first name)
- I, II, III
- Source rows for this UN number
- 3
- 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 308
Proper shipping name: Arsenic compounds, liquid, n.o.s..
Full column-2 description: Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s
US hazard class or division: 6.1. Packing group: I.
Column-1 symbols: G.
Source row 309
Proper shipping name: Arsenic compounds, liquid, n.o.s..
Full column-2 description: Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s
US hazard class or division: 6.1. Packing group: II.
Column-1 symbols: G.
Source row 310
Proper shipping name: Arsenic compounds, liquid, n.o.s..
Full column-2 description: Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s
US hazard class or division: 6.1. Packing group: III.
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.
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