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The purpose of this HMG is to establish a standard operating procedure to be followed to ensure root cause analysis is performed on defective tank car vacuum relief devices for cars transporting ethanol that are found during inspections.

Document Series:
Technical Bulletins
Author:
  • Ron Hynes
Bulletin Number
HMG-125
Discipline
Hazardous Materials
Subject:
Hazardous Materials
Keywords:
vacuum relief valve, seats, seals, gaskets, O-ring, procedures, root cause analysis
Document
HMG_125_Version1.pdf (54.95 KB)

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Last updated: Sunday, May 1, 2011