Used for the determination of Sulphur, halogens, phosphorus, fluorine, boron and some trace metals in organic materials. Reflectors focus the infrared heat from the lamps onto a small area approximately 10 cm above the center of the chamber. Lamps only operate when chamber door is fully locked. "START" switch fires lamps for 10 seconds (preset internally). In the event of a flask explosion, pressure is vented safely through holes in the chamber and any glass fragments are contained within the chamber. Metal cabinet has aluminum interior for rigidity and corrosion resistance.