Bowie Dick Test Packs BEYA Bowie Dick Test Packs are pre-assembled single use test packs designed to evaluate the performance of the air removal system of pre-vacuum equipped sterilizers manufactured according EN 285. Bowie Dick Test Pack Operation Conditions Several versions of these test packs are available. What is the Bowie Dick Test Pack Operation Conditions ? Many versions of these test packs are available. Bowie Dick Test Pack is designed to operate at steam cycle 134 C – 3,5 minutes or 121 C – 15 minutes conditions. An exposing from pink to dark grey/black on the indicator sheet indicates that all the air was removed and replaced by steam. The backside of indicator sheet includes all significant traceability details and can be filled out and kept as a permanent record. BEYA Bowie & Dick Test Packs are manufactured in the absence of lead or other heavy metals. What is the purpose of the Bowie Dick Test ? Bowie-Dick Test Packs are used for single use test packs which designed to evaluate the performance of the air removal system of a sterilizer which include pre-vacuum. They are thought up to be compatible with prevacuum cycles operating at special exposure temperatures or within a specified exposure temperature range. The purpose of the prevacuum cycle is to take all the air from the sterilizer chamber. This presents the steam to make contact with all the surfaces in the load. If air is present, steam penetration to all the surfaces in the load will be impeded. Causes of air remaining in the sterilizer chamber include inadequate vacuum (i.e., incomplete air removal), air leaks, or the presence of noncondensable gases in the steam. Why do the Bowie-Dick test give fail ? There can be several reason of the fails of bowie dick test pack. The main general reasons are : Faulty vacuum pump. Faulty pressure switch/sensor giving incorrect reading. Water supply temperature to the vacuum pump is too high. Leak in sensor ports attached to the chamber.