# Troxler Electronic Laboratories, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 02-0058
- **title:** Troxler Electronic Laboratories, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2002-03-26
- **effective on:** Not available
- **summary:** 02-0058 response to Troxler Electronic Laboratories, Inc. concerning 173.475.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-02-0058
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2002/020058.pdf
**body:**

<<<PAGE 1>>>

400 Seventh St., S.W.
Washington, D.C. 20590
pecial Program:
research and
Administration
MAR 2 6 2002
Mr. Stephen A. Browne
Corporate Radiation Safety Officer
Ref. No. 02-0058
Troxler Electronic Laboratories, Inc.
Box 12057
Research Triangle Park, NC 27709
Dear Mr. Browne:
This is in response to your November 13, 2001 letter concerning radioactive packaging requirements
under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). We apologize for the
delay in responding to your letter due to mail delivery problems many Federal agencies have been
experiencing because of screening and decontamination precautions.
Specifically, you request clarification on whether cracks which penetrate the full depth of the wall (either
radioactive material would be in violation of the regulations. You cite § 173.475(b) which states that
inner or outer) of a shipping case designed to transport scientific gauges containing special form
packaging required to transport these gauges must be ".. in unimpaired physical condition, except for
superficial marks." You state that these cracks do not meet the requirements in this section.
Your opinion is correct. The cracks in the shipping case described in your letter compromise the
physical integrity of the packaging, increasing the chance that the packaging could fail during incidents
normal to transportation. Scratches and scuffs are examples of surface marks that would not
compromise the physical integrity of the packaging and would be considered "superficial marks."
I hope this satisfies your request.
Sincerely,
Deln
Delmer F. Billings
Chief, Standards Development
Office of Hazardous Materials Standards
ANNALI HI
173.475(6)
020058

<<<PAGE 2>>>

Johnsen
TROXLER
8173. 475(b)
November 13, 2001
RAM
Mr. Edward T. Mazzulo
!!! i
Director, Office of Hazardous Materials Standards
1:10 -71
02-0058
400 7th Street S.W.
U.S. DOT/RSPA (DHM 10).. ^
Washington, D.C. 20590000... 1C
Dear Mr. Mazzullo:
I am writing to request clarification on the quality control requirements in 49 CFR 173.475(b) for packages
containing splaar forma quai. Troxier manufactures and repairs portable moisture density gauges
Type A package requirements The shipping cases are injection-molded plastic, double-walled construction
weas. Thu gaugts at snipped in reusable shipping cases that Tett
with an air void between the inner and outer walls (see enclosure 1 for photo of a typical shipping case and
gauge).
Customers periodically ship gauges to Troxler for calibration and repair. Before returning a gauge to a
10%) develop cracks in the inner wall where the weight of the equipment rests most heavily (see enclosure
customer, the shipping casc is inspected in accordance with §173.475: Over time, some shipping cases (5-
2 for photo of a typical crack). Troxier considers a shipping case with any cracks to be defective,
regardless of whether the crack is on the inner or outer wall, since the body of the case is a single, molded
return their gauge.
picce. In these situations, we advise the customer that the shipping case must be replaced before we can
Some customers have challenged the need to replace the shipping case, arguing that the package is
material during shipping.
unimpaired because, based on experience; the cracks do not affect the containment of the radioactive
We agrec that loss of radioactive material containment is unlikely, however, according to 173.475(b), the
cracks which penctrate the full depth of the wall (either inner or outer) are more than superficial marks,
package must be in unimpaired physical condition, except for superficial marks. Our interpretation is that
-thus the package does not meet the standard.
We want to comply with DOT requirements, but we do not want to force customers to purchase new
quality control inspection criteria in $173.475(b) is correct or not in this situation.
shipping cases unnecessarily. Therefore, we would like clarification on whether our interpretation of the
Sincerely,
Stephen A. Browne
Corporate Radiation Safety Officer
Enclosures (2)
Troxler Electronic Laboratories, Inc
Box 12057 + 3008 Cornwallis Road • Research Triangle Park, North Carolina 27709
Tel: (919) 549-8661 • Fax: (919) 485-2250 + e-mail: troxrso@troxlerlabs.com
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