Shipping Classification
Refrigerating machines, containing non-flammable, non-toxic gases, or ammonia solutions (UN2672)
What this means
Refrigerating machines, containing non-flammable, non-toxic gases, or ammonia solutions (UN2672) 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 2.2
UN / NA identification number
UN2857
Packing group
N/A
Label codes
2.2
Packaging — exceptions
306, 307
Packaging — non-bulk
306
Packaging — bulk
306, 307
Passenger aircraft / rail limit
450 kg
Cargo aircraft only limit
450 kg
Vessel stowage location
A
Vessel stowage — other
None
Special provisions (§172.102)
A53 — Refrigerating machines and refrigerating machine components are not subject to the requirements of this subchapter when containing less than 12 kg (26.4 pounds) of a non-flammable gas or when containing 12 L (3 gallons) or less of ammonia solution (UN2672) (see § 173.307 of this subchapter).
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.