Internal floating roof type B failure

{
  "id": "MLC-T-ENV-014764",
  "term": "Internal floating roof type B failure",
  "field": "Environment",
  "term_source": "Internal Floating Roof Type B Failure",
  "definition": "Any time, as determined during internal inspections, the internal floating roof's primary seal has holes, tears, or other openings in the seal or the seal fabric; or the secondary seal (if one has been installed) has holes, tears, or other openings in the seal or the seal fabric; or the gaskets no longer close off the stored liquid surface from the atmosphere; or a slotted membrane has more than 10 percent open area.",
  "abbreviation": "IFR Type B Failure",
  "subject": "Built environments",
  "references": [
    "40 CFR 65.2 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/internal-floating-roof-type-b-failure/"
}