Acids BTI (Break Through Inicator) (Size 3.5” x 1”, ¾” male NPT)

The Acid vapors Breakthrough indicator for Activated Carbon Absorbers and Filters is a colorimetric indicator that indicates the saturation and exhaustion of carbon absorbers and filters. The indicator is reliable and cost effect means for protection from exposure to toxic acid gases and vapors in the work place. The indicator change color from yellow to red when carbon absorbers and filters are saturated with acid gases and vapors such as acetic acid, hydrochloric acid, hydrofluoric acid, hydrogen bromide, hydrogen chloride, hydrogen iodide, nitric acid, nitrous acid, sulfur dioxide, trichloroacetic acid and trifloroacetic acid.