EVS-EN 1422:1999+A1:2009

This European standard specifies the minimum performance requirements and test methods of two types of sterilizers employing ethylene oxide gas as the sterilant, either as a pure gas or in admixture with other gases (whether supplied ready mixed or mixed at the point of use) in a temporarily sealed chamber. These sterilizers are intended to be used for medical, dental, pharmaceutical, veterinary and industrial or related purposes. The two types of sterilizers have been designated Type A and Type B respectively using the following criteria: -  Type A sterilizers are capable of being programmed by the user; -  Type B sterilizers are of limited size and provided with one or more pre-set operating cycles which cannot be varied by the user.