Gastec 76M 四氢噻吩检知管 C4H8S（10~100 mg /立方公尺）

制造商: Gastec
Model: 76M
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技术规格
制造商消息

Indicator: 10 ~ 100 mg/m^3
Measuring Range: 10 ~ 100 mg/m^3, Number of Pump Strokes 2
Sampling Time: 1 minute per pump stroke
Colour Change: Pink → Pale Yellow
Reaction Principle: C4H8S + MnO4 (Pink) → Pale Yellow Product
Coefficient of Variation: 10% (for 10 to 30 mg/m^3), 5% (for 30 to 100 mg/m^3)
Nr. of tests: 5
Pump: GV-100S/110S

Details

Performance

Measuring Range	10 to 100 mg/m³
Number of Pump Strokes	2
Correction Factor	1
Sampling Time	1 minute per pump stroke
Detecting Limit	2 mg/m³ (n=2)
Colour Change	Pink → Pale Yellow
Reaction Principle	C4H8S + MnO4 (Pink) → Pale Yellow Product
Coefficient of Variation	10% (for 10 to 30 mg/m³), 5% (for 30 to 100 mg/m³)
Shelf Life	2 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

Ethyl mercaptan	2 ppm	No	Pale pink (whole layer)
Ethylene	2000 ppm	No	Pale pink (whole layer)
Propylene	1000 ppm	No	Pale pink (whole layer)
Methanol	1000 ppm	No	Pale pink (whole layer)
Hydrogen sulphide	80 ppm	No	Pale pink (whole layer)
1-Butene	1000 ppm	No	Pale pink (whole layer)
tert-Butyl Mercaptan	10 mg/m³	No	Pale pink (whole layer)