Penski–Martensi suletud tassi leekpunktikatse lõpeb välgu jälgimisel, mis levib kogu tassi sisemuses ja vastav temperatuur tassis on vedeliku leekpunkt.
The Pensky–Martens closed-cup flash-point test concludes upon observation of a flash that spreads throughout the inside of the cup, and the corresponding temperature is the liquid's flash point.
