CF604 Cable Flammability Tester - Laboratory Flammability Testing Solution The Cable Flammability Tester evaluates fire performance of single vertical wires and cables, designed in strict compliance with IEC 60332-1 and UL 1581 VW-1 standards. The apparatus uses a calibrated 500W Tirrill burner applying a precisely controlled flame to vertically mounted cable specimens, measuring afterflame time, char length, and cotton indicator ignition. The large-volume combustion chamber