BEYA Bowie Dick Test Self Adhesive 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 11140-3 , EN 11140-4. Several versions of these test packs are available. A uniform change 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 contains all important traceability details and can be filled out and kept as a permanent record. BEYA Bowie Dick Test Self Adhesive Packs are manufactured in the absence of lead or other heavy metals.