Gastec 126 快速氯苯检测管C6H5Cl（2~500ppm）

制造商: Gastec
Model: 126
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技术规格
制造商消息

Indicator: 10 to 200 ppm
Measuring Range:
+ 2 to 5 ppm, Number of Pump Strokes 2
+ 5 to 200 ppm, Number of Pump Strokes 1
+ 200 to 500 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Gray
Reaction Principle: C6H5Cl+ I2O5 + H2S2O7 → I2
Coefficient of Variation: 15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Performance

Measuring Range

2 to 5 ppm

5 to 200 ppm

200 to 500 ppm

Number of Pump Strokes

Correction Factor

Sampling Time

1.5 minutes per pump stroke

1 minute

Detecting Limit

0.2 ppm (n=2)

Colour Change

White → Gray

Reaction Principle

C6H5Cl+ I2O5 + H2S2O7 → I2

Coefficient of Variation

15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm)

Shelf Life

3 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Carbon monoxide	0.1%	No (2 layers)	Pale brown (whole layer)
Acetylene, Hexane, Ethylene	0.2%	No (2 layers)	Pale brown (whole layer)
Alcohols, Ketones	1%	+	No
Esters	0.2%	+	No
Aromatic hydrocarbons		+	Gray