What is UN 1975?
UN 1975: Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures. US class 2.3; PG not listed.
- UN number
- UN 1975
- Proper shipping name (first listed)
- Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures
- US class or division (first name)
- 2.3
- 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 2327
Proper shipping name: Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures.
Full column-2 description: Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures
US hazard class or division: 2.3. Packing group: Not listed (blank in source).
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?
Leave your email so we can reply about a correction. Send the UN number and your observation to contact@strofika.com.