<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">I suggest the 0.45 um mixed cellulose ester filters. You need a holder and an air pump calibrated to a known volume / min. Let it run for a known time then place a section (perhaps 1/4th) of the paper on a glass slide and let hot vapors of acetone make the paper transparent. Then use a 400X microscope to see the particles and fibers. You then count the particles in the view and multiply the numbers of views on the filter. Or just rate them as ‘high medium or low. </div><div class=""><br class=""></div><div class="">A small metal container with single pipe sticking out. Add some acetone to the container, heat and direct the vapors coming out of the pipe onto the filter. Goes frosty then clear. </div><div class=""><br class=""></div><a href="http://airsamplingsolutions.com/index.php/airsampling/mixed-cellulose-ester-mce/" class="">http://airsamplingsolutions.com/index.php/airsampling/mixed-cellulose-ester-mce/</a><div class=""><br class=""></div><div class="">Thanks<br class=""><div class=""><div class=""><br class=""></div><div class="">Frank</div><div class="">Frank Shields</div><div class="">Gabilan Laboratory</div><div class="">Keith Day Company, Inc.</div><div class="">1091 Madison Lane</div><div class="">Salinas, CA 93907</div><div class="">(831) 246-0417 cell</div><div class="">(831) 771-0126 office</div><div class=""><a href="mailto:fShields@keithdaycompany.com" class="">fShields@keithdaycompany.com</a></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><a href="mailto:franke@cruzio.com" class="">franke@cruzio.com</a></div><div class=""><br class=""></div><br class="Apple-interchange-newline">
</div>
<br class=""><div><blockquote type="cite" class=""><div class="">On Dec 22, 2016, at 2:33 PM, Andrew Heggie <<a href="mailto:aj.heggie@gmail.com" class="">aj.heggie@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On 22 December 2016 at 18:59, Crispin Pemberton-Pigott<br class=""><<a href="mailto:crispinpigott@outlook.com" class="">crispinpigott@outlook.com</a>> wrote:<br class=""><blockquote type="cite" class="">Dear Andrew<br class=""><br class="">In the interest of a realistic and informative discussion it is reasonable to post the ad here so we can all see it.<br class=""></blockquote><br class="">Sorry Crispin, I had an e-mail last week from China and deleted it not<br class="">seeing a need, however I have just read a report that wood burning in<br class="">UK is responsible for >2 times the amount of black carbon compared<br class="">with emissions from diesel cars here. There is currently an outcry<br class="">against diesel cars in London which is only 25 miles from here and I<br class="">burn wood in a stove along with 16% of households locally, and yes I<br class="">have a diesel car.<br class=""><br class=""><br class="">So I became quite interested in measuring my personal exposure.<br class=""><br class="">It's mildly [stove] related<br class=""><br class="">Andrew<br class=""><br class="">_______________________________________________<br class="">Stoves mailing list<br class=""><br class="">to Send a Message to the list, use the email address<br class=""><a href="mailto:stoves@lists.bioenergylists.org" class="">stoves@lists.bioenergylists.org</a><br class=""><br class="">to UNSUBSCRIBE or Change your List Settings use the web page<br class="">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org<br class=""><br class="">for more Biomass Cooking Stoves, News and Information see our web site:<br class="">http://stoves.bioenergylists.org/<br class=""><br class=""></div></div></blockquote></div><br class=""></div></body></html>