Filter/dilution tunnel. A smoke sample is drawn by way of a tube the place it is actually diluted with air, the ensuing smoke/air combination is then pulled through a filter and weighed. This is the internationally acknowledged approach to measuring smoke from combustion.[66] )[18] Magnetic remanence, recorded within the https://nuso89999.full-design.com/the-5-second-trick-for-smoke-76437040