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  • 产品名称:四氢噻吩检知管76 C4H8S

  • 产品型号:76
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
四氢噻吩检知管76 C4H8S,Measuring Range 1 to 10 ppm Number of Pump Stroke 4 Correction Factor 1 Sampling Time 1.5 minutes per pump stroke Detecting Limit 0.25 ppm (n=4) Color Change Pink
详情介绍:

 

四氢噻吩检知管76 C4H8S

Tetrahydrothiophene  No.76

C4H8S

四氢噻吩检知管76 C4H8S

Performance
 

MeasuringRange

1 to 10 ppm

Number of PumpStroke

4

CorrectionFactor

1

SamplingTime

1.5 minutes per pumpstroke

DetectingLimit

0.25 ppm (n=4)

ColorChange

Pink → PaleYellow

ReactionFormula

C4H8S + MnO4 (Pink) → Pale Yellow Product

Coefficient ofVariation10% (for 1 to 3ppm), 5% (for 3 to 10 ppm)
ShelfLife2 Years
Correctionsfor
temperature & humidity
Temperature correction is necessary
Store the tubes at cool and darkplace.
 

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Ethylmercaptan

1ppm

No

Discolor whole layerto pale pink

Ethylene

1000 ppm

No

Discolor whole layerto pale pink

Propylene

500 ppm

No

Discolor whole layerto pale pink

Methanol

300 ppm

No

Discolor whole layerto pale pink

Hydrogensulfide

30 ppm

No

Discolor whole layerto pale pink



Othersubstance measurable with this detector tube


 

 
Calibration gasgenerationDiffusion tubemethod


 


TLV-TWATLV-STELExplosive range
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