Filter/dilution tunnel. A smoke sample is drawn by way of a tube wherever it can be diluted with air, the ensuing smoke/air combination is then pulled through a filter and weighed. This is actually the internationally identified technique of measuring smoke from combustion.[sixty six] DNA. Arsenic, nickel and radioactive https://paxtonsbddc.shivawiki.com/7252902/the_basic_principles_of_smoking