Chemical Indicators
Bowie-Dick A4 Test Sheet (ISO 11140-3)
Bowie & Dick A4 Test sheet Chemical Indicator for testing air removal efficiency of vacuum-assisted steam sterilizers. 100% Lead Free.
SKU: BDA4
Category: Chemical Indicators
Brand: Chemdye®
Description
Product type
BDA4 Chemical Indicator Bowie‑Dick test sheet
Main application
Evaluates air removal and steam penetration efficiency in vacuum‑assisted steam sterilizers (cycles: 3.5 min at 134 °C or 4 min at 132 °C)
Key benefit
Simple A4 sheet format for reliable Bowie‑Dick testing with clear, homogeneous color change for easy interpretation
Technology / differentiator
Type 2 chemical indicator; initial color yellow → final dark brown/black; large A4 sheet for enhanced visibility; 100% lead‑free formulation
Compatibility / usage environment
Designed for vacuum‑assisted steam sterilizers; not suitable for gravity displacement cycles; ideal for healthcare, food, pharmaceutical and medical device industries