Bowie & Dick test packs for monitoring steam sterilisation processes using autoclaves. Manufactured to evaluate the efficacy of air removal and steam penetration in pre-vacuum sterilisers. Consisting of a series of steam penetration (air removal) barriers in the centre of which is a chemical indicator sheet. The test pack should be placed into an empty autoclave chamber and put through a recommended autoclave cycle of 134°C for 3.5 minutes. During processing, the cycle must remove or displace the air from within the barrier material, and replace it with steam throughout the pack. A uniform change from blue to pink indicates adequate steam penetration. The thermochromic ink formulation detects problems with steam quality and can used a diagnostic tool by an autoclave engineer.
Generally used to monitor performance changes in air removal and steam quality during routine use
Not hazardous, according to the OSHA Hazard communication standard, 29 CFR 1910.1200 and are free of lead and other heavy metals
Class 2 indicators
121°C for 15 mins, 134°C for 3 - 3.5 mins (pre vacuum)