乙炔气体检测管171

 乙炔气体检测管171 HC≡CH Acetylene
Acetylene No.171
HC≡CH

Performance


MeasuringRange

0.05 to 0.1%

0.1 to 2.0%

2.0 to 4.0%

Number of PumpStrokes

2

1

1/2

CorrectionFactor

1/2

1

2

Sampling Time

2 minutes per pumpstroke

Detecting Limit

0.02 % (n=2)

Color Change

White → Brown

Reaction Principle

HCCH + I2O5→ H2S2O7 + I2

Coefficient ofVariation 15% (for0.1 to 0.5 %), 10% (for 0.5 to 2 %)
ShelfLife 3Years
Correctionsfor
temperature & humidity Temperature correction is necessary
Store the tubes inthe cool and dark place.



Possible coexisting substances and theirinterferences (NOTE)


Substance

Concentration

Interference

Change color by itself

Carbonmonoxide

0.1%

Plus error

Produce brown stain

Ethylene

0.5%

Plus error

Produce brown stain

More thanC3 HCs

-
Plus error

Produce brownstain



Othersubstance measurable with this detector tube


Substance

Correction Factor

Pump Strokes

Measuring Range