What is UN 2545?
UN 2545: Hafnium powder, dry. US class 4.2; PG I, II, III.
- UN number
- UN 2545
- Proper shipping name (first listed)
- Hafnium powder, dry
- US class or division (first name)
- 4.2
- 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 1671
Proper shipping name: Hafnium powder, dry.
Full column-2 description: Hafnium powder, dry
US hazard class or division: 4.2. Packing group: I.
Column-1 symbols: Blank in source.
Source row 1672
Proper shipping name: Hafnium powder, dry.
Full column-2 description: Hafnium powder, dry
US hazard class or division: 4.2. Packing group: II.
Column-1 symbols: Blank in source.
Source row 1673
Proper shipping name: Hafnium powder, dry.
Full column-2 description: Hafnium powder, dry
US hazard class or division: 4.2. Packing group: III.
Column-1 symbols: Blank in source.
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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