Hydrazine BTI
Hydrazine Vapor Breakthrough Indicator (BTI) for carbon absorbers and filters
Hydrazine Indicator  MIL-P-87930 Indicator  H-70 Indicator  Filter Change Indicator

Item No. 186

Hydrazine BTI

(3.5” x 1”, ¾” male NPT)

The Hydrazine vapor 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 green to black when carbon absorbers and filters are saturated with hydrazine vapor and/or MIL-P-87930. 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 is highly sensitive to hydrazine vapor. It operates at temperatures -20oC to 65oC (-4oF to 149oF) and humidities 5% RH to 95%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 2 years and 2 years months shelf life.


Product Manual

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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 65oC (-4oF to 149oF)

e

Operating humidity:

5% RH to 95%RH

f

Minimum detectable limit:

0.15ppm•hr at 30 cm/sec face velocity

g

Color change:

Green to black

h

Storage temperature:

4oC to 25oC, (39oF to 77oF)

i

Shelf life:

2 years at 4oC to 25oC, (39oF to 77oF)

j

Service life:

2 years

Hydrazine Vapor Filter Change Indicator
Indicator for MIL-P-87930 or H-70

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