PACK TEST STEAM BOWIE DICK More accurate, compact, environmentally friendly and cost effective than traditional Bowie Dicktests. Test for both air leaks and wet steam content. Detect air leaks in a pre- vacuumsteam sterilizer at 270�F (132�C) at a minimum 3.5-minute exposure. Distinctive color change is easy to readand not reversible. Lead-free ink and no toxic heavy metals. Bowie Dick Steam Test Pack Detects Air Leaks in a Steam Sterilizer. This sterilizer test identifies leaks in a pre-vacuum steam sterilizer at 270�-276� (132�-135�C) at a minimum 3.5-minute exposure. Distinctive color change from blue to black is not reversible. Free of lead or any toxic heavy metals. Test Pack Unit: CS