Zinc dithionite or Zinc hydrosulfite

Table row: 3658
Proper shipping name: Zinc dithionite or Zinc hydrosulfite
Hazard class: 9
UN / NA number: UN1931
Packing group: III
Label codes: ["None"]
Special provision codes: ["IB8","IP3","T1","TP33"]
Packaging exceptions (49 CFR 173.***): 155
Non-bulk packaging (49 CFR 173.***): 204
Bulk packaging (49 CFR 173.***): 240
Quantity limit, passenger aircraft or rail: 100 kg
Quantity limit, cargo aircraft only: 200 kg
Stowage location (column 10A): A
Other stowage provisions (column 10B): 13, 26, 123
Is forbidden: false

Source

eCFR Versioner full XML — 49 CFR Part 172, HMT — Office of the Federal Register / NARA · Cleared for reuse
Read from https://www.ecfr.gov/api/versioner/v1/full/2026-10-07/title-49.xml?part=172 (49 CFR § 172.101 HMT, data row 3658)
Federal government regulatory text; GPO public-domain policy applies to government work; inspect third-party material separately — terms