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苯氣體檢測管121SL C6H6 Benzene 的詳細介紹苯氣體檢測管121SL C6H6 Benzene
Benzene No.121SL
MeasuringRange
1 to 20 ppm
20 to 100 ppm
Number of PumpStrokes
5
1
CorrectionFactor
1
5
Sampling Time
2 minutes per pumpstroke
Detecting Limit
0.25 ppm (n=5)
Color Change
White → Brownishgray
Reaction Principle
C6H6 + I2O5 + H2S2O7 → I2
Coefficient ofVariation20% (for1 to 5 ppm)， 15% (for 5 to 20 ppm)ShelfLife3YearsCorrectionsforSubstance
Concentration
Interference
Change color by itself
Hexane
50 ppm
No effect
No discoloration
Toluene
100 ppm
No effect
No discoloration
Xylene
150 ppm
No effect
No discoloration
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