PROCEDURES FOR ESTABLISHING THE STATISTICAL SURVEILLANCE OF EXPANSION VENTILES FOR REFRIGERATING MEDICINAL PRODUCTS

摘要

PCT No. PCT/EP95/02662 Sec. 371 Date May 15, 1997 Sec. 102(e) Date May 15, 1997 PCT Filed Jul. 8, 1995 PCT Pub. No. WO96/07066 PCT Pub. Date Mar. 7, 1996To effect the adjustment, the expansion valve is first set for a basic coolant (Ro) to a substantially constant static overheating temperature ( DELTA toh) in a predetermined working range of the evaporator temperature and, when the coolant circuit is filled with a replacement coolant (R1, R2) differing from the basic coolant (Ro), the pretension of its adjusting spring (46) is adjusted in accordance with a specification suited to the difference between the vapor pressure curves of the replacement coolant and those of the basic coolant.