> From: Doug Powell [mailto:[email protected]] > Sent: Wednesday, August 15, 2012 12:20 > > John, > > Your point is well taken. > > As a child, I recall running my fingers through a > candle flame. If > you move fast enough, you do not absorb "feel" the heat > of the flame.
In a similar vein to this, Rich Nute has done some good research into the issue of skin burn for the HBSD. Some of the same principles will transpose readily to this topic. Hopefully, Rich will chime in. > > The UL 94 test has standardized the available energy > and time taken to > ignite a sample, and samples can then be evaluated in > comparison to > other materials. Or put differently, UL 94 defines standardized test methods that allow comparison of different materials' resistance to heat sources of ignition. > snip < > In the end, I suppose my question could be phrased, > "Aside from the > rapid and devastating mechanical effects of an > explosion, is it > possible or even likely to start a fire with something > like UL 94 HB > material, simply with an explosion?" It certainly seems possible to ignite a 94 HB rated material. But even HB has some relativism built in. Is it barely meeting HB criteria or is it on the edge of meeting V-2? Or was it simply not tested for a vertical flammability classification because there was no perceived market (HB is good enough)? Peter Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
