- Author
- Heskestad, G.
- Title
- Ease of ignition of Fabrics Exposed to Flaming Heat Sources. Third Quarterly Progress Report.
- Coporate
- Factory Mutual Research Corp., Norwood, MA
- Sponsor
- National Bureau of Standards, Washington, DC
- Report
- FMRC Serial 19967; RC72-TP-23, October 1, 1972, 39 p.
- Keywords
- fabrics | ease of ignition tester | heat sources | ignition time | convective heat transfer | diffusion flames | premixed flames | skin (human) | melting | exposure
- Abstract
- Progress made during the third quarter of the two-phase program is described. The first phase, which is concerned with the effect of the exposure mode on ignition times of fabrics, has now been completed. Except for two surface-structured fabrics, the results imply that an ignition time ranking of the 20 GIRCFF fabrics is preserved through a series of exposure modes consisting of cominbations of flame sources and fabric orientations, provided the ignition times have been minimized with respect to fabric-flame source separations. Results to date are consistent with the hypothesis that, for a given fabric, the convective heat transfer from the flame to the fabric is the dominant factor determining ignition time.