Gastec 141 便携式气体检测管醋酸乙酯检测管CH3CO2C2H5（0.1~1.5％）

制造商: Gastec
Model: 141
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技术规格
制造商消息

Indicator: 0.1 to 1.5%
Measuring Range: 0.1 to 1.5%, Number of Pump Strokes 1
Sampling Time: per pump stroke
Colour Change: Orange → Dark green
Reaction Principle: CH3CO2C2H5 + Cr6+ H2SO4 → Cr3+
Coefficient of Variation: 10% (for 0.04 to 0.3 %), 5% (for 0.3 to 1.5 %)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Performance

Measuring Range	0.1 to 1.5%
Number of Pump Strokes	1
Correction Factor	1
Sampling Time	1.5 minutes per pump stroke
Detecting Limit	0.01% (n=1)
Colour Change	Orange → Dark green
Reaction Principle	CH3CO2C2H5 + Cr⁶⁺ H2SO4 → Cr³⁺
Coefficient of Variation	10% (for 0.04 to 0.3 %), 5% (for 0.3 to 1.5 %)
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

sulphur dioxide	500 ppm	+	Green
Hydrogen sulphide	500 ppm	+	Dark green
Alcohols, Esters, Ketones		+	Dark green
Propane	0.2%	+	Dark green (whole layer)
Aromatic HCs	500 ppm	+	Dark green