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Sunderland, Peter B McCoy, Conor Graham Digital Repository at the University of Maryland University of Maryland (College Park, Md.) Fire Protection Engineering 2016-09-15T05:34:25Z 2016-09-15T05:34:25Z 2016 https://doi.org/10.13016/M2323D http://hdl.handle.net/1903/18831 The literature on the determination of flammability limits was reviewed and experts on the ASTM E681 standard were interviewed to identify new means of improving the reproducibility of the ASTM E681 test. Venting was identified as a variable of flammability limits not yet addressed. Limitations of the current system for sealing and venting (a rubber stopper) were identified and addressed by the development of a custom burst disc. The burst disc was evaluated for its ability to hold and maintain a vacuum, its ability to vent at pressures of interest, and for its venting phenomena. The burst disc was deemed to be a satisfactory alternative to the rubber stopper and is recommended to be included in the ASTM E681 standard. en Improved Venting for Flammability Limit Testing Using ASTM E681 Apparatus Thesis Engineering ASHRAE ASTM E681 Flammability open.access