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Aromatic Diisocyanates (TDI & MDI)
 Filters & Carbon Beds Replacement Indicators
Surface Contamination Wipe
Area Monitor

Chemteq offers complete line of products for the protection from aromatic diisocyanates emissions.

  • Filters saturation indicators (BTI), suitable for carbon absorbers, scrubbers and carbon beds .
  • Filters saturation indicator stickers (BTIS), suitable for ductless hood filters .
  • ChemWipe for the detection and quantification of aromatic diisocyanates traces on surfaces .
  • Area monitors, suitable locations positions on stack, duct, vent or flue where representative samples can be obtained .


Item No. 182

Aromatic Diisocyanates BTI

Product Features
Minimum detectable limit: 4ppb•hr

Color Change: Off white to brownish red

Inlet dimensions: ¾" Male NPT

Service life: 12 months        

(For Surface Contamination Testing)

Item No. 304

Product Features
Minimum detectable limit: 4µg in 5 minutes

                                        ~ 0.03µg in 30 minutes
Detection range using color comparator: 4 to 500 µg

Color Change: off white to red

Dimensions: 8.5mm (0.33in), Φ: 31.8mm (1.25in)

Shelf life: 12 months 

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Item No. 126-0000
Product Features
Minimum detectable limit: 4ppb•hr

Color Change: off white to pink to red

Dimensions: 2.8mm (0.11in), diameter: 31.8mm (1.25in)

Service life: 12 months
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Item No. 215
Product Features
Minimum detectable limit: 2ppb•hr

Color Change: off white to pink to red

Dimensions: 2.8mm (0.11in), diameter: 38.1mm (1.5in)

Service life: 20 days
Custom Indicators are available
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