Gastec 127 便携式气体检测管对二氯苯检测管C6H4Cl2(2.5~300 ppm)

Indicator: 2.5 to 300 ppm
Measuring Range: 2.5 to 300 ppm, Number of Pump Strokes 2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Light brown 
Reaction Principle: C6H4Cl2 + I2O5 + H2S2O7 → I2
Coefficient of Variation: 10% (for 2.5 to 100 ppm), 5% (for 100 to 300 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range 2.5 to 300 ppm
Number of Pump Strokes 2
Correction Factor 1
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 1 ppm (n=2)
Colour Change White → Light brown
Reaction Principle C6H4Cl2 + I2O5 + H2S2O7 → I2
Coefficient of Variation 10% (for 2.5 to 100 ppm), 5% (for 100 to 300 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Aromatic hydrocarbons   + Light brown
Acetylene, Ethylene, Hexane 0.2% No Light brown (whole layer)(0.2%)
Carbon monoxide 0.1% No Light brown (whole layer)(0.1%)
Esters 0.2% No Light brown (whole layer)(0.2%)
Alcohols, Ketones 1% + No
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
m-Dichlorobenzene 1.0 2 2.5 to 300 ppm
p-Dichlorobenzene 1.0 2 2.5 to 300 ppm
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
25 ppm(2014) 50 ppm(2014) 2.2 to 12%
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