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2017-25 April 21, 2017 PHMSA Issues Revised Safety Advisory on Use of DOT Specification 39 Cylinders for Liquefied Flammable Compressed Gas

By JHMT StaffApril 21, 2017

Today, the Pipeline and Hazardous Materials Safety Administration (PHMSA) issued for pre-publication in the Federal Register a notice titled Hazardous Materials: Use of DOT Specification 39 Cylinders for Liquefied Flammable Compressed Gas [Docket No. PHMSA-2016-0078; Notice No. 2016-14].

This notice revises and clarifies the initial safety advisory notice PHMSA issued on this subject on December 13, 2016 (Notice No. 2016-14; see HazMat Alert 2016-59) to address concerns of offerors and users of DOT Specification 39 (DOT-39) cylinders that exceed 75 cubic inches (in3) (1.23 L).

The revised safety advisory says DOT-39 cylinders exceeding 75 in3 (1.23 L) should not contain liquefied flammable compressed cyclopropane, ethane, or ethylene, or liquefied petroleum gases. PHMSA advises against the filling or transporting of these gases in DOT-39 cylinders when the cylinder’s internal volume exceeds 75 in3 (1.23 L).

Click here to view the notice in the Federal Register. Until its scheduled publication on April 24, it is available as a PDF.