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Interpretation Response #07-0093 ([N. Wood Counter Laboratory, Inc.] [Ms. Marjory Crawford])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: N. Wood Counter Laboratory, Inc.

Individual Name: Ms. Marjory Crawford

Location State: IN Country: US

View the Interpretation Document

Response text:

May 18, 2007


Ms. Marjory Crawford                 Reference No. 07-0093

N. Wood Counter Laboratory, Inc.

P.O. Box 2509

Chesterton, IN 46304

Dear Ms. Crawford:

This responds to your May 3, 2007 letter and our telephone conversations concerning the transportation of certain hermetically sealed nuclear radiation sensor (detector) tubes containing less than one gram of Boron trifluoride, 2.3, Hazard Zone B, at less than atmospheric pressure under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).

We reviewed the information submitted on the hermetically sealed detector tubes, each containing not more than one gram of Boron trifluoride filled to less than atmospheric pressure, and packaged in a specially designed packaging. Based on the form and quantity of Boron trifluoride contained in the radiation detector tubes, it is our determination these tubes, when packaged and offered for shipment as described in your letter, will not pose an unreasonable risk to health, public safety or property during transportation and, therefore, are not subject to the HMR.

I hope this information is helpful. Please contact this office if we can be of further assistance.



Hattie L. Mitchell

Chief, Regulatory Review and Reinvention

Office of Hazardous Materials Safety


Regulation Sections

Section Subject
171.2 General requirements