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

制造商: Gastec
Model: 127
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技术规格
制造商消息

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

Details

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