Present specifications for tank vehicles transporting hazardous materials are entirely inadequate when the vehicle is subjected to temperatures higher than 50 degrees (C), as would be the case in a fire. Many liquids at temperatures between 50 and 200 degrees (C) either vaporize causing an abrupt and termindous increase in pressure (e.g. propane, butane, hydrogen sulfide) or undergo chemical decomposition at an explosive rate, causing the tanks to explode. However, the rise in temperature can be delayed by lining the tanks with insulation. Previous research has found that sublimant or intumescent costings 3 to 6 mm thick are best for this purpose, explosions being delayed as long as 40 minutes, depending on the substance in the tank. Tests were carried out on a 5 ton container lined with sublimant or intumescent costings at the French Atomic Energy Commission testing ground. The tests results are used to support the recommendation that safety regulations must be revised to require thermal protection of tanks that can celay the explosion of a tank involved in a fire by at least 30 minutes.

  • Availability:
  • Supplemental Notes:
    • This paper was presented at the 89th IRF World Meeting, Tokyo, Japan, October 16-21, 1977. Full Text also written in Japanese.
  • Corporate Authors:

    International Road Federation

    525 School Street, SW
    Washington, DC  United States  20024
  • Authors:
    • Kemler, H
  • Publication Date: 1977-10

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Filing Info

  • Accession Number: 00179837
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jun 30 1979 12:00AM