Metallic substance, water-reactive, self-heating, n.o.s

Table row: 2138
Symbols: ["G"]
Proper shipping name: Metallic substance, water-reactive, self-heating, n.o.s
Hazard class: 4.3
UN / NA number: UN3209
Packing group: I
Label codes: ["4.3","4.2"]
Special provision codes: ["A7","W31"]
Packaging exceptions (49 CFR 173.***): None
Non-bulk packaging (49 CFR 173.***): 211
Bulk packaging (49 CFR 173.***): 242
Quantity limit, passenger aircraft or rail: Forbidden
Quantity limit, cargo aircraft only: 15 kg
Stowage location (column 10A): E
Other stowage provisions (column 10B): 13, 40, 148
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 2138)
Federal government regulatory text; GPO public-domain policy applies to government work; inspect third-party material separately — terms