Certain substances classified as "flammable" by Closed Cup Flash Point Testing may be reclassified as "non-flammable" by combustibility testing. This has significant potential cost implications for the packaging, storage and shipping of many materials.

Generally similar to the Elcometer 6910 SetaFlash 'Series 3' Closed Cup Tester but with and open cup for flash / no flash finite determinations or sustained combustion tests. A manually operated flame sweeping arm is fitted to the cup and gas is supplied from the integral tank via the control valve. The flash sustained combustion characteristics of the sample are observed visually by passing the test flame over the sample.