# Air Products and Chemicals, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 00-0286
- **title:** Air Products and Chemicals, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2000-10-13
- **effective on:** Not available
- **summary:** 00-0286 response to Air Products and Chemicals, Inc. concerning 173.29.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0286.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0286.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0286
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2000/000286.pdf
**body:**

<<<PAGE 1>>>

400 Seventh St., S.W.
Washington, D.C. 20590
dministratio
OCT 13 2000
Mr. J. H. DiGirolamo
Ref. No: 00-0286
Distribution Department
Air Products and Chemicals, Inc.
7201 Hamilton Boulevard
Allentown, PA 18195-3475
Dear Mr. DiGirolamo:
This is in response to your October 10, 2000 letter regarding the return of foreign made cylinders to the
US for refilling under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Specifically you ask whether a foreign made cylinder containing only the residue of a Division 2.2
(nonflammable gas) with a Division 5.1 (oxidizer) subsidiary hazard may be transported into the US as
empty if the pressure in the cylinder does not exceed 40.6 psia.
The answer is yes, provided all the requirements of § 173.29(b) are met. The provision in
§ 173.29(b)(2)(iv)(B) which states that a packaging containing a Division 2.2 nonflammable gas with
no subsidiary hazard with an absolute pressure less and 40.6 psia is not regulated does not pertain to
your shipment because the pressure in the cylinder you describe is so low that the subsidiary (oxidizer)
hazard is not posed.
I hope this information is helpful.
Sincerely,
The
Thomas G. Allan
Senior Transportation Regulations Specialist
Office of Hazardous Materials Standards
000286
173,29

<<<PAGE 2>>>

0C 10 2000 15:55 0R AIR TS 610 481 2981 10 12083050
"...
PRODUCTS LE
Billings
2 113.29
Air Products and Chemicals, Inc.
Allentown, PA 18195-1501
7201 Hamilton Boulevard
Empty Packagings
Tel (610) 481-3475
00-0280
10 October 2000
Office of Hazardous Materials Standards (DHM-10)
Mr. Edward Mazzullo, Director
U.S. Department of Transportation
400 Seventh Street, SW
Washington, DC 20590-0001
Re: Foreign Cylinder Interpretation
Dear Mr. Mazzulio:
As per CFR173.301(i), a foreign manufactured cylinder can be charged for export if it meets all
of the published regulatory requirements. Air Products exports a compressed gas that has a
primary hazard of 2.2 (nonflammable gas) with a 5.1 (oxidizer) subsidiary hazard.
After our foreign customer uses the product, they wish to return the residue cylinders for refilling
using an "exclusive use" freight container loaded by the customer sent via ocean freight. There is
when they are "emptied". Under these conditions, the oxidizer subsidiary hazard no longer
approximately .74 Ibs of product left in the cylinders with a pressure not exceeding 40.6 psia
exists. The container would be then transported directly to our fill plant and unloaded by our
company personnel. At no time is the container opened from the time it is loaded at the customer
until it arrives and is unloaded at our plant.
Under this scenario, could these foreign manufactured residue cylinders enter the United States
for refilling under 173.29 (empty packagings)?
Thank you in advance for your consideration on this very important issue.
Sincerely,
• H. DiGirolamo
Sr. Logistics Specialist
Distribution Department
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