Gastec 102H 快速2，2-二甲基丁烷检测管 CH3(CH2)4CH3（0.015~1.2％）

制造商: Gastec
Model: 102H
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技术规格
制造商消息

Indicator: 0.03 to 0.6%
Measuring Range:
+ 0.015 to 0.03%, Number of Pump Strokes 2
+ 0.03 to 0.6%, Number of Pump Strokes 1
+ 0.6 to 1.2%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Orange → Dark green
Reaction Principle: CH3(CH2)4CH3 + Cr6+ + H2SO4 → Cr3+
Coefficient of Variation: 10% (for 0.03 to 0.2 %), 5% (for 0.2 to 0.6 %)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Performance

Measuring Range

0.015 to 0.03%

0.03 to 0.6%

0.6 to 1.2%

Number of Pump Strokes

Correction Factor

Sampling Time

45 seconds per pump stroke

Detecting Limit

0.003% (n = 2)

Colour Change

Orange → Dark green

Reaction Principle

CH3(CH2)4CH3 + Cr⁶⁺ + H2SO4 → Cr³⁺

Coefficient of Variation

10% (for 0.03 to 0.2 %), 5% (for 0.2 to 0.6 %)

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

Acetylene	3%	+	Dark green (whole layer)
Propane	0.2%	+	Dark green (whole layer)
Aromatic HCs	500 ppm	+	Dark green
Alcohols, Esters, Ethers		+	Dark green
Halogenated HCs	5000 ppm	+	Dark green
Hydrogen sulphide	500 ppm	+	Dark green
sulphur dioxide	500 ppm	+	Green