# Westpak, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 15-0125
- **title:** Westpak, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2015-11-25
- **effective on:** Not available
- **summary:** 15-0125 response to Westpak, Inc. concerning 173.203.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-15-0125.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-15-0125.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-15-0125
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2015/150125.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
NOV. 2 5 LU15
Mr. Jorge Campos
Westpak, Inc.
83 Great Oaks Drive
San Jose, CA 95119
Reference No. 15-0125
Dear Mr. Campos:
This is in response to your e-mail requesting clarification of the Hazardous Materials
Regulations (HMR; 49 CFR 171-180) applicable to package testing requirements for a
pressurized "keg." In your letter you state that the "keg" is intended to contain 18 liters of
"UN3082, Environmentally Hazardous Substance, 9, III" and 2 liters of nitrogen gas. The
"keg" is filled with a vacuum system and pressurized to 10 psi. It is your understating that
because the nitrogen gas does not exceed a gauge pressure of 200 kPa (43.8 psia), the material
contained in the "keg" does not meet the definition of a Division 2.2 material, and as such, the
keg does not need to be tested as a single packaging. In addition, you request confirmation
that the testing requirements for combination packages may be applied with the "keg" being
the inner package and a fiberboard box being the outer package.
In the scenario described the "keg" may be considered an inner packaging of a combination
package. As the nitrogen gas contained in the "keg" does not meet the definition of a
Division 2.2 material a specification inner packaging prescribed for gases is not required. The
completed packaging may be considered a combination package and may tested in accordance
with Subpart M of Part 178 for a packaging authorized in § 173 .203.
I hope this information is helpful.
Sincerely, ~--···-·
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1
Duane Pfund i
International Standards Coordinator
Standards and Rulemaking Division

<<<PAGE 2>>>

Goodall, Shante CTR (PHMSA)
From:
Sent:
To:
Subject:
Attachments:
Betts, Charles (PHMSA)
Monday, June 22, 2015 2:06 PM
Hazmat Interps
Fw: Pressurized 20 liter keg treating it as an article
120216 Interpretation Letter.pdf
Please log and assign for response.
Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network.
From: Jorge Campos <Jorge@westpak.com>
Sent: Monday, June 22, 2015 11:25 AM
To: Betts, Charles (PHMSA)
Subject: Pressurized 20 liter keg treating it as an article
Hello Charles,
I just spoke with Mark Toughiry from DOT engineering this morning and he advised that I go through you for the
interpretation of treating a pressurized keg at 10 psi. The keg is meant to contain 18 liters of Environmentally hazardous
substances, liquid, n.o.s. UN3082, class 9 PG Ill and 2 liters of nitrogen gas. The keg is filled with a vacuum system and
hence pressurized to 10 psi.
Per the discussion, it was stated that per 173.115(b), the definition of a Division 2.2 material (Non-Flammable, Non-
Poisonous Compressed Gas), is one the exerts a gauge pressure of 200 kPa (43.8 psia) and does not meet the definition
of Division 2.1 or 2.3. Because the material used to pressure the keg shipped by my client, is not classified as a Division
2.1 or 2.3, and exerts a pressure of less than 200 kPa, (in this case 10 psi) it is not classified as a Hazardous Material
during shipment. Therefore the keg does not require DOT Certification or a Special Permit. The Interpretation Letter I
am attaching provided indicates that the Keg assembly is considered an Article for testing purposes and therefore can be
tested as a non-bulk Combination Packaging.
It seems the confusion is to whether or not the material used to pressurize the keg meets the definition of a Hazardous
Material. In this case it does not because the gauge pressure is only 10 psi and the material is not a Division 2.1 or 2.3
material. If the pressure was greater than 200 kPa and/or the material met the definition of Divisions 2.1 or 2.3, then
the keg would indeed need to be certified as a Single Packaging or would have to fall under a Special Permit.
In short, the keg will be treated as an article for the purposes and tested as a non-bulk combination package (Article
contained in a 4G box).
Please let me know if my interpretation is correct or if you have any questions.
Best Regards,
Jorge Campos
Direct (408)600-3436
Main (408)224-1300
'1f Westpak, Inc., an employee own company 11 ml
1

<<<PAGE 3>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
FEB 2 7 2013
Mr. J.D. Thomas
Dyno Nobel Inc.
Simsbury Plant
660 Hopmeadow Street
Simsbury, CT 06070
Reference No. 12-0216
Dear Mr. Thomas:
This is in response to your e-mail requesting clarification of the Hazardous Materials
Regulations (HMR; 49 CFR 171-180) applicable to the packaging for transportation of non-
electric detonators. In your letter, you state that the detonators are packaged in a 4G
fiberboard '"outer" box in a manner that protects and prevents movement of the articles.
You also state that the detonator assemblies have a shock tube that is wound in a loop or
figure 8 configuration and that they have voids between the coils due to the coils
overlapping each other. You ask whether a 4G fiberboard box used as a single packaging
for non-bulk materials is a receptacle and whether it would be considered a one-time use
receptacle. You also present your concern regarding the requirement to fill the box to 95%
when testing.
The 4G fiberboard box is not a receptacle in the context of§ 178.602. Your package is a
combination package with the articles being the inner packages and the 4G fiberboard box
being the outer package. The 95% fill requirement does not apply to articles and, therefore,
the testing should take place with the 4G fiberboard box filled as it would be prepared for
transportation or as otherwise specified in § 173.602. You must also determine whether
additional cushioning, et cetera, should be included in the package and otherwise ensure
conformance with§§ 173.24 and 173.24a for general requirements for non-bulk packagings
and packages.
With respect to reuse, to reuse a packaging, you must ensure that it conforms to § 173 .28,
which in part requires that packagings and receptacles used more than once must be in such
condition, including closure devices and cushioning materials, that they conform in all
respects to the prescribed requirements of the HMR. If your packaging does not conform to

<<<PAGE 4>>>

Drakeford, Carolyn (PHMSA)
From:
Sent:
To:
Subject:
Attachments:
Eckenrode, Andrew.CTR (PHMSA) on behalf of INFOCNTR (PHMSA)
Wednesday, September 26, 2012 2:32 PM
Drakeford, Carolyn (PHMSA)
FW: interpretation
pic19629.jpg
Carolyn,
We received the following request for a formal letter of interpretation
Thanks
Andrew
----Original Message-----
From: jd.thomas@am.dynonobel.com [mailto:jd.thomas@am.dynonobel.com}
Sent: Monday, September 24, 2012 1:50 PM
To: INFOCNTR (PHMSA)
Subject: interpretation
Dear Hazardous Material Information Center:
Is a 4G fiberboard box used as outer packaging in non-bulk packaging in a single packaging configuration (meaning it
does not have any inner
packaging) considered a receptacle? Would it be also considered a one time use receptacle?
l package non-electric detonators in a 4G fiberboard outer box that are packaged in such a way that the fit prevents
freedom of movement and
protects the articles from sources of impact. The detonator assemblies
have shock tube that is wound in a loop or figure 8 configuration. When these articles are packed in the box they are
snug and once the box is full, we can not put more units in the box. The units do have voids between the coils as the
coils overlap each other.
A DOT inspector for our UN POP test facility states that the detonator assemblies do not fill the box to 95% of its volume
(required for a
receptacle) because of these small voids. This inspector believes that the outer box is a receptacle and/or a one time
use receptacle and therefore can not be used for my articles and can only be tested as a receptacle at 95% capacity
(which has the definition of volume) . We can not putin another unit, it would burst the box.
Again - is a single packaging 4G fiberboard box used for non-butk materials a receptacle?
(Embedded image moved to file: pic19629.jpg)
You can see the voids where coils of shock tube complete their figure 8 pattern. The units do not compress and fill the
box to a good snug fit.
Best regards,
J.D. Thomas
Global Product Management Support I Integration+ Packaging+ Change Management
1

<<<PAGE 5>>>

Dyno Nobel Inc.
A business of Incitec Pivot Limited
Simsbury Plant, 660 Hopmeadow St,reet, P.O. Box 2006, Simsbury, CT 06070, USA
Office: +1860 4081839 I Fax: +1860 4081983 I Mobile: +1860 713 3013 mailto:jd.thomas@am.dynonobel.com
http://www.dynonobel.com
Groundbreaking Performance Through Practical Innovation
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