Shipping Classification
Potassium
What this means
Potassium appears on the federal Hazardous Materials Table (49 CFR §172.101), the table that governs how a material must be classified, packaged, and labeled for transport.
Hazard class / division
Class 4.3
UN / NA identification number
UN2257
Packing group
I
Label codes
4.3
Packaging — exceptions
151
Packaging — non-bulk
211
Packaging — bulk
244
Passenger aircraft / rail limit
Forbidden
Cargo aircraft only limit
15 kg
Vessel stowage location
D
Vessel stowage — other
13, 52, 148
Special provisions (§172.102)
A7 — Steel packagings must be corrosion-resistant or have protection against corrosion.
A19 — Combination packagings consisting of outer fiber drums or plywood drums, with inner plastic packagings, are not authorized for transportation by aircraft.
A20 — Plastic bags as inner receptacles of combination packagings are not authorized for transportation by aircraft.
B27 — Tanks must have a service pressure of 1,034 kPa (150 psig). Tank car tanks must have a test pressure rating of 1,379 kPa (200 psig). Lading must be blanketed at all times with a dry inert gas at a pressure not to exceed 103 kPa (15 psig).
IB4 (see §172.102 or related section for full text)
IP1 (see §172.102 or related section for full text)
N6 — Battery fluid packaged with electric storage batteries, wet or dry, must conform to the packaging provisions of § 173.159 (g) or (h) of this subchapter.
N34 — Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material.
T9 (see §172.102 or related section for full text)
TP7 (see §172.102 or related section for full text)
TP33 (see §172.102 or related section for full text)
W31 — Non-bulk packagings must be hermetically sealed.
Packaging citations reference sections of 49 CFR Part 173 not expanded here. View the full official table on eCFR.gov.
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Source: Hazardous Materials Table (49 CFR §172.101) and Special Provisions (49 CFR §172.102), current as retrieved from eCFR.gov. View official table.