Chlorine Dioxide BTI

Chlorine Dioxide Gas Breakthrough Indicator for Carbon absorbers and filters

(Filters Change Indicator)

Item No.188

Chlorine Dioxide BTI

(3.5” x 1”, ¾” male NPT)


The Chlorine Dioxide Gas Breakthrough indicator for Activated Carbon Absorbers and Filters is a colorimetric indicator that indicate the saturation and exhaustion of carbon absorbers and filters. The indicator is reliable and cost effect means for protection from exposure to toxic chlorine dioxide in the work place. The indicator change color from off white to peach when carbon absorbers and filters are saturated with chlorine dioxide. Hence alerting the user to replace the exhausted carbon absorber or filter. The indicator is easily connected to the ¾ inch female NPT outlet of the carbon absorber or filter using the ¾ inch male NPT threading at the bottom of the indicator. It operates at temperatures -20oC to 55oC (-4oF to 131oF) and humidities 5% RH to 85%RH. The indicator is 3.5 inch tall, 1 inch diameter and you can observe the bright vibrant color change from all directions. The unique design of the indicator prevents any color change due to exposure to contaminants in the surrounding environment and changes color only when carbon absorber or filter is saturated. The indicator has extended service life of 12 months.

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Product Specifications
a Weight: 28g (1.0oz)
b Dimensions: 89.9mm (3.5in), diameter 24.5mm (1.0in)
c Inlet dimensions: ¾" MNPT
d Operating temperature: -20oC to 55oC (-4oF to 131oF)
e Operating humidity: 5% RH to 85%RH
f Minimum detectable limit: 0.3ppm•hr at 30 cm/sec face velocity
g Color change: Off white to peach
h Storage temperature: 4oC to 25oC, (39oF to 77oF)
i Shelf life: 12 months at 4oC to 25oC, (39oF to 77oF)
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