Gastec 9DL 二氧化氮被动发现管NO2(0.01~3.0 ppm)

Indicator: 0.3 to 3 ppm
Measuring Range: 0.01 to 3.0 ppm
Sampling Hours: 1 to 24  hours
Colour Change: White → Green
Reaction Principle: ABTS + NO2 → Green product
Coefficient of Variation: 10% (for 0.01 to 3.0 ppm-hr)
Nr. of tests: 10

Detail

Catalog

Performance
Measuring Range 0.01 to 3.0 ppm
Sampling Hours 1 to 24 hours
Detecting Limit 0.01 ppm
Colour Change White → Green
Reaction Principle ABTS + NO2 → Green product
Coefficient of Variation 10% (for 0.01 to 3.0 ppm-hr)
Shelf Life 1 Year
Corrections for temperature & humidity Unnecessary
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Carbon monoxiide ≦ 10ppm No No (10 ppm)
Chlorine 0.07 ppm No No (0.07 ppm)
Ozone 0.045 ppm No No (0.045 ppm)
sulphur dioxide     No (0.1 ppm)
Carbon dioxide 600 ppm No No (600 ppm)
Formaldehyde     No (0.1 ppm)
Calibration gas generation Permeation tube method
TLV-TWA TLV-STEL Explosive range
0.2 ppm(2014) - -
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