USING THE DENA PF FACILITY, ACCURATE MEASUREMENTS ABOUT THE DEPENDENCY OF THE PINCH TIME TP, AND THE MAXIMUM DISCHARGE CURRENT IMAX, TO THE PRESSURE INCREMENT, HAVE BEEN PERFORMED. THE EXPERIMENTAL DATA HAVE ALSO BEEN COMPARED TO THE THEORETICAL RESULTS, BASED ON THE ML-MODEL. THE REASONS FOR THE LACK OF THE PERFECT AGREEMENT HAVE BEEN MENTIONED. THE STUDY SHOW THAT THE ML-MODEL IS GENERALLY CAPABLE TO DESCRIBE THE EFFECT OF THE PRESSURE VARIATION ON THE TP AND THE IMAX, BUT TO MAKE AN EVEN MORE ACCURATE STUDY, THE EXACT VALUE OF THE CURRENT, AND THE MASS SHEDDING FACTORS, AND EVEN THE CURRENT SHEATH FORMATION TIME, SHOULD BE KNOWN.