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乙炔氣體檢測(cè)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
乙炔氣體檢測(cè)管171