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aromatic diisocyanates area monitor detects toluene 2,4-diisocyanate, toluene 2,6-diisocyanate and 4,4'-methylene diphenyl diisocyanate

Aromatic Diisocyanates Area Monitor

Area Monitor • Aromatic Diisocyanates Indicator • Polyurethanes Chemicals Indicator

Item No. 215

Minimum detectable limit: 4ppb•hr
Color Change: Off white to brownish red

Dimensions: 1.5″ diameter, 2mm

Service life: 20 days

(Pack of 5)


Aromatic diisocyanates area monitor is sensitive and selective for the detection of traces of aromatic diisocyanates. For best results, attach area monitor on stack, duct, vent, or flue. Reliable and cost effective means for monitoring air quality.

PN 215
Product Specifications
Weight: 0.4g (0.02oz)
Dimensions: 2.8mm (0.11in), diameter: 38.1mm (1.5in)
Operating temperature: 0oC to 50oC (32oF to 122oF)
Operating humidity: 5% RH to 90%RH
Minimum detectable limit: 4ppb•hr at 30 cm/sec face velocity
Color change: Off white to pink or brown
Storage temperature: 4oC to 25oC, (39oF to 77oF)
Shelf life: 12 months at 4oC to 25oC, (39oF to 77oF)
Service life: 20 days

Useful Links



International Isocyanate Institute

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ChemWipe for aromatic diisocyanates

Aromatic diisocyanates area monitor

OEM and custom products. Quick turnaround for your prototypes is our specialty.

Reliable and cost effect for monitoring air quality. Suitable location, on stack, duct, vent, or flue.

Facts about Aromatic Diisocyanates

Powerful irritants to the mucous membranes of the eyes and gastrointestinal and respiratory tracts.

Can sensitize workers, making them subject to severe asthma attacks if they are exposed again.

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