# gh Package &amp; Product Testing and Consulting, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 01-0115
- **title:** gh Package &amp; Product Testing and Consulting, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2001-11-26
- **effective on:** Not available
- **summary:** 01-0115 response to gh Package &amp; Product Testing and Consulting, Inc. concerning 178.603.
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-01-0115.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-01-0115
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2001/010115.pdf
**body:**

<<<PAGE 1>>>

... .
J.S. Department
400 Seventh St., S.W.
of Transportatior
Washington, D.C. 20590
Special Programs
Research and
Administration
NOV 26 2001
Mr. H. Perry Hock
Ref. No: 01-0115
Technical Director
gh Package & Product Testing
and Consulting, Inc.
325 Commercial Drive.
Fairfield, OH 45014
Dear Mr. Hock:
This is in response to your letter and subsequent telephone conversation with Diane LaValle of my staff,
requesting clarification of the requirements for testing of packagings under the Hazardous Materials
Regulations (HMR; 49 CFR Parts 171-180). Your questions are paraphrased and answered as
follows:
Q1. You are testing a combination packaging consisting of 4 one-gallon plastic inner receptacles in a
fiberboard box. The manufacturer wants the packaging to be certified at the highest possible maximum
gross weight. When you raise the weight of the packaging by adding lead shot or sand, the packagings
fail. If they are tested with the actual high specific gravity (SG) material that will be transported, they
pass. You ask if you may use the formula provided in § 178.603(e)(2)(ii) but work it backwards to
determine the specific gravity to which a packaging may be certified. In other words, you want to
determine the maximum height at which a packaging will pass the drop test and then work backwards to
determine the corresponding SG. You ask what maximum gross weight should be marked on a
packaging where the packaging was filled with water and passed a drop test at a height of 4.416 feet.
You propose to perform the necessary calculation as follows:
Packing Group II: SG × 3.3 feet [§ 178.603(e) (2)(ii)]
SG = 4.416 feet + 3.3 feet
SG = 1.33
A. You may determine specific gravity by using the equation in § 178.603(e)(2)(ii) in reverse. In your
scenario using 1.33 SG, 4 one-gallon containers plus the tare weight of 3 pounds, the packaging may be
certified to 23.1 kg. This is calculated by taking the rated capacity of the packaging in liters (4 gallons =
15.14 liters) times the specific gravity (1.33 as calculated above) to get the maximum gross weight in
kilograms [§ 173.24(b)(3)]. We note that this calculation does not leave any margin for error; the
package failed at an incremental increase in drop height. Since each packaging must be capable of
passing all the performance tests at any time during transportation, we recommend that you reduce the
authorized specific gravity some reasonable amount so as to provide a greater margin for variation in
performance of the production packagings.
8.403
010115

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.. •
Q2. May the maximum gross weight of a packaging be marked to 1 decimal place or must it be a whole
number rounded down?
A. The maximum gross weight for a packaging may appear as a whole number rounded down or may
appear rounded to the first decimal.
Q3. May the specific gravity be marked on a packaging to 2 decimal places? How should it be
rounded? Should the actual SG be used to determine drop height or the rounded down SG?
A. As provided by § 178.503(a)(4)(i), single packagings intended to contain liquid are marked with the
specific gravity rounded down to the first decimal and may be omitted when the specific gravity does not
exceed 1.2. The actual SG should be used to determine drop height.
I hope this information is helpful.
Sincerely,
Director, Office of Hazardous
Materials Standards

<<<PAGE 3>>>

gh Package
Jgh
& Product
Fairfield, OH 45014
325 Commercial Dr.
Phone (513) 870-0080
Fax (513) 870-0017
Testing and
Consulting, Inc.
335 W. Melinda Lane
Phoenix, AZ 85027
Phone (623) 869-8008
Fax (623) 869-8003
May 3, 2001
Edmonson
To:
Mr. Edward T. Mazzullo
Director, Office of Hazardous Materials Standards
$ 172.312
U.S. DOT/RSPA (DHM-10)
400 7th Street S.W.
Washington, DC 20590-0001
3118.603
From: Mr. H. Perry Hock
Marking
+ Testing
gh Package & Product Testing and Company
Technical Director
01-0115
Subject: Non-bulk performance-oriented packaging.
Dear Mr. Mazzullo,
I have several questions regarding marking and the testing of non-bulk packagings.
The pack consists of 4 plastic one-gallon jugs filled with windshield wiper fluid. The client
approach to determine the highest SG allowed to be placed in it?
E.G. The packs pass at 53 inches but not 54. Since 53 is less than group I but more than
group II, We would use the group Il formula: SG x 3.3 feet (39.6 inches) = 4.416 feet (53
we can then rewrite the formula:
SG =
4.416 Feet
3.3 Feet
SG = 1.33
Now using 1.33 SG, and the packaging consists of 4, 1-gallon containers, and the tare weight
pfile packaging is 3lbs, what would be the appropriale weight to be marker on the 40
1.33 × 8.43 (weight of one gallon of water) = 11.21 Ibs. per bottle
4 bottles x 11.21 Ibs. = 44.84 Ibs. just for the contents
44.84 Ibs. + 3 1bs. of packaging = 47.84 Ibs. (21.7 kg)
Ed Mazzullo Letter 5-3-01

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Page 2
Question 2:
ind testing of non-bulk pack
Question 3
May the specific gravity of the material be marked on the pack to 2 decimal places? If the SG
cannot be marked to two decimal places, how should it be rounded? How should it be tested
rounded SG?
and to what drop height? Should the actual SG be used for the drop height or the new,
This question may seem like it does not have merit until you consider the impact it has on
should be marked on the drum? If it is to be marked to a single decimal rounded down, the
shipper can loose more than 4 gallons per drum.
Question 4
The elient submits a pack of 4 metal 1-gallon containers that are filled with water. Water's
SG is 1.0. The SG of the product they want to put inside of the pack is 1.18. Both fall under
product. What drop height should be used to compensate for the weight difference? If the
the 1.2 cutoff to use, but the tested pack weighs 5.4 Ibs. less than the package with the actual
tested. If the drop height is altered to a higher drop height, then the pack can be marked
drop height is not altered, then theoretically the pack must be marked with the weight
same
with the appropriate ship weight - which would be 2.4 kg higher.
Similar scenario:
party test lab that their 4G pack will weigh no more than 24 Ibs. when shipped. When we
A client has a 4G combination pack with plastic inners for liquids. They tell us, the third
receive the samples filled with wiperfluid, the packs weigh 18 Ibs. What is the correct way
of determining the drop height for this pack? Can a ratio be used?
would be 48 inches.
Example: shipped weight is 40 Ibs. but the tested weight is 36 Ibs. The drop height for 40 Ibs.

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-
.::
Page 3
The ratio would be:
Product Ship Weight
New Drop Height
Test Pack Weight
Required Drop Height
And then rewritten as:
Product Ship Weight × Required Drop Height
Test Pack Weight
= New Drop Height
40Ibs.x 48 Inches
36lbs.
- = 53.3 Inches
I realize the drop height can never be lower than the required drop height but would this be
acceptable for determining a pack's drop height when no specific gravity is given?
7
letter, please call me at 513.870.0080
I look forward to your response: If you need clarification or have questions regarding this
Yours Truly,
H. Perry Hock
Technical Director
gh Package & Product Testing and Consulting, Inc.
HPH/hph
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