按EN285的要求,要抽真空至绝对压力7kpa也就是-94.3kpa,维持10min,标准为≤0.13kpa/min。
18.3.3 With the temperature stabilized and the sterilizer chamber empty except for fixed furniture and
necessary sensors, start the test cycle. When the absolute pressure in the sterilizer chamber is 7 kPa or
below close all the valves connected to the sterilizer chamber and stop the vacuum pump. Observe and
record the time (t1) and the pressure (p1). Wait at least 300 s and not more than 600 s to allow
evaporation of condensate in the sterilizer chamber and then observe and record the pressure (p2) in
the sterilizer chamber and the time (t2). After a further (600 ± 10) s, again observe and record the
pressure (p3) and the time (t3).