Notices. Notice of public teleconference
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/register/2013/01/30/2013-02046A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
BILLING CODE 4910-13-P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration Results of FAA Nitrous Oxide BLEVE Characterization Testing AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public teleconference. SUMMARY: This notice announces a public teleconference to share with the public results of recent FAA sponsored testing of nitrous oxide (N <sup>2</sup> O) characteristics. Nitrous oxide is an important oxidizer to developers of some commercial reusable launch vehicles.
A potential hazard in nitrous oxide storage and handling is a Boiling Liquid Expanding Vapor Explosion (BLEVE), which results from a sudden loss of pressure in a tank containing nitrous oxide stored under pressure above its normal boiling point. The FAA's Office of Commercial Space Transportation sponsored tests of liquid-phase nitrous oxide at NASA's White Sands Test Facility to empirically determine the superheat limit temperature for nitrous oxide, and to demonstrate that a BLEVE would not occur if the liquid is maintained at temperatures below this superheat limit temperature. *Meeting Information:* The teleconference is scheduled for Thursday, February 28, 2013, from 1:00-2:30 p.m.
Eastern Standard Time. The presentation and call-in number will be posted one week in advance at *http://www.ast.faa.gov/* . FOR FURTHER INFORMATION CONTACT: Stewart Jackson, Division Manager, Regulations and Analysis Division, AST-300, Office of Commercial Space Transportation, Federal Aviation Administration, 800 Independence Avenue SW., Washington, DC 20591, Telephone
(202)267-7903, or email at *stewart.jackson@faa.gov.* Issued in Washington, DC, on January 22, 2013. George C. Nield, Associate Administrator for Commercial Space Transportation. [FR Doc. 2013-02046 Filed 1-29-13; 8:45 am]