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Formaldehyde Filter Change Indicator Low-Flow-Filters it indicates the saturation and exhaustion of hplc waste container filters.

Formaldehyde Breakthrough Indicator for Low-Flow Filters (BTI LFF)

Filter Saturation Indicator- organic vapors

Item No. 136-0000

Product Features
Minimum detectable limit: 0.3ppm•hr at 30 cm/sec face velocity
Color Change: Yellowish brown to dark brown to purple
Service life: 1 year

(Pack of 5)

$207.92

Formaldehyde Filter Change Indicator Low-Flow-Filters is a colorimetric indicator that indicates the saturation and exhaustion of hplc waste container filters. The indicator is reliable and cost effect means for protection from exposure to t formaldehyde vapor. The indicator change color from yellowish brown to dark brown to purple when filters are saturated with formaldehyde.

Acrolein and aldehydes react with approximately the same sensitivity. No other interferences are known. You can easily attach the indicator into filter outlet (closed pores foam adapter is required; please contact us for details). The BTI LFF operates at temperatures 4oC to 32oC (39oF to 89.6oF) and humidities 5% RH to 85%RH. The indicator is 3.0 inch tall; 3/8” 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. It changes color only when filter is saturated. The indicator has extended service life of 1 year plus 14 months shelf life.

PN: 136-0000

Product Specifications

a Weight: 3.8g (0.14oz)
b Dimensions: 79mm (3.1in), diameter: 10mm (0.39in)
c Operating temperature: -20oC to 55oC (-4oF to 131oF)
d Operating humidity: 5% RH to 85%RH
e Minimum detectable limit: 0.3ppm•hr at 30 cm/sec face velocity
f Color change: Yellowish brown to dark brown to purple
g Storage temperature: 4oC to 25oC, (39oF to 77oF)
h Shelf life: 14 months  4oC to 25oC, (39oF to 77oiF)
j Service life: 1 year
Useful Link
Formaldehyde Filter Change Indicator Low-Flow-Filters
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