# Washington State Public Health Laboratories — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 10-0179
- **title:** Washington State Public Health Laboratories — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2010-12-17
- **effective on:** Not available
- **summary:** 10-0179 response to Washington State Public Health Laboratories concerning 173.196, 178.609.
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-10-0179.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-10-0179
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2010/100179.pdf
**body:**

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U.S. Department of Transportation 1200 New Jersey Ave, SE
Washington, D.C. 20590
Pipeline and Hazardous Materials
Safety Administration
DEC 1 7 20lu
Mr. Chuck Talburt
Laboratory Program Advisor
Washington State Public Health Laboratories
1610 NE 150th Street
Shoreline, WA 98155
Reference No. 10-0179
Dear Mr. Talburt:
This is in response to your e-mail to the Pipeline and Hazardous Materials Safety
Administration's (PHMSA's) Hazardous Materials Information Center, and subsequent
telephone conversation with a member of my staff. In your letter, you state most of the petri
dishes your clients use are made from plastic and they would like to use these dishes to transport
anthrax cultures, which are typically Division 6.2 (infectious) Category A materials. You ask if
petri dishes with lids may be used as primary containers to transport these cultures by motor
vehicle, railcar, or aircraft under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171180).
Under § 173.196, a packaging for a Division 6.2 material that is a Category A infectious
substance must meet the performance test requirements prescribed in § 178.609 and be marked
in conformance with § 178.503(f). A packaging for a Category A infectious substance is a triple
packaging consisting of a leakproof primary receptacle, a leakproof secondary packaging, and
rigid outer packaging of adequate strength for its capacity, mass, and intended use (see
§ 173.196(a)(3)). Provided the completed package meets the applicable design requirements
prescribed in § 173.196 for an infectious substance packaging, and the package successfully
passes the performance tests required in § 178.609, use of the petri dish as an inner packaging to
transport Category A anthrax cultures would be acceptable. However, a petri dish's lid is
typically not designed to be watertight. Therefore, additional packaging materials may be
needed to meet this condition. For example, the lid of the dish could be secured to its base with
tape or parafilm and this packaging placed in a sealed polyethylene bag that is watertight. This
primary packaging could then be placed in a secondary packaging and secured in a manner that

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prevents any puncture, tear, or breakage of the packaging materials. Further, the performance
tests in § 178.609 require the packaging to be dropped on its bottom, top, sides, and corner, and
cold-conditioned and immersed in water with no leakage from the primary receptacle.
Additional requirements in §§ 173.196 and 178.609 may also apply.
I hope this satisfies your request.
Sincerely,
~~~--
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division
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§ 173 ./qqDrakeford. Carolyn (PHMSA)
From: INFOCNTR (PHMSA) -:t=rtf'ofchoLls Substances
Sent: Wednesday, August 11, 2010 10:34 AM
To: Drakeford, Carolyn (PHMSA) 10- 0111
Subject: FW: Shipping Category A infectious substances
From: Talburt, Chuck D (DOH) [mailto:Chuck.Talburt@DOH.WA.GOV]
Sent: Tuesday, August 10, 2010 5:32 PM
To: INFOCNTR (PHMSA)
Subject: Shipping Category A infectious substances
To Whom It May Concern,
This is a follow up from a previous email on this subject.
I am interested in knowing specifically whether Category A, infectious substances, can be shipped by either
ground or air using Petri dishes as primary containers. References 08-0276 and 08-0158 clarify the use of Petri
dishes as primary containers for Category B cultures. However, I am concerned that laboratories in our state
may be sending in Category A, infectious substances, using Petri dishes as primary containers. We are
concerned particularly regarding possible anthrax cultures.
Could you please forward an interpretation regarding this question?
Thank you for your assistance in this matter.
Please address your response to:
Chuck Talburt
Washington State Public Health Laboratories
1610 N E 150th Street
Shoreline, Washington 98155
Chuck Talburt
Laboratory Program Advisor
phone: (206) 418-5404
email address: ChuckTalburt@doh.wa.gov
"The Department of Health Works to Protect and Improve the Health of People in Washington State"
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