[pct-l] mailing gas

[scourtway@bpa-arch.com (Steve Courtway)]

although enough can't be said about yankee ingenuity,
here's what I found regarding mailing gas from the USPS
web site for those of us who use 'mersh cooking equipment.
hopefully this is not redundant information for too many folks.


342.22 Mailable Gases
The following are examples of mailable gases:
a. Butane. Butane (UN1011) and Receptacles, small=20
(UN2037) with butane or butane mixtures are Division=20
2.1 flammable gases. Butane gases that can qualify=20
as ORM-D materials are acceptable only in domestic=20
mail via surface transportation when properly=20
prepared under 342.3 and Packaging Instruction 2A=20
in Appendix C.
b. Oxygen, Compressed. Oxygen (UN1072) is a=20
Division 2.2 nonflammable gas and is acceptable=20
in domestic mail only if it can be reclassified=20
as an ORM-D material. The requirements in 342.3=20
and Packaging Instruction 2B in Appendix C must=20
be followed.
c. Propane. Propane is a Division 2.1 flammable=20
gas and is acceptable in domestic mail via surface=20
transportation only if it can be reclassified as an=20
ORM-D material. The requirements in 342.3 and=20
Packaging Instruction 2A in Appendix C must be followed.=20
Propane is nonmailable in domestic mail via air transportation

342.3 Packaging
Mailable compressed gases must be packaged to protect valves=20
and fittings and to ensure integrity of the primary receptacle=20
during transport. Containers must use recessed valves, screw=20
thread caps, tap closures, or other means to prevent accidental=20
discharge.  The following conditions apply:
a. Nonmetal Containers. A mailable gas is acceptable in an=20
other-than-metal primary receptacle if the water capacity=20
is 4 fluid ounces (7.22 cubic inches) or less.=20

342.4 Marking and Documentation
For surface transportation, parcels containing mailable gases=20
must be plainly and durably marked on the address side with=20
"Surface Mail Only" and "ORM-D" immediately following or below=20
the proper shipping name (i.e., consumer commodity). A shipper's=20
declaration for dangerous goods is not required for mailable=20
gases sent via surface transportation


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