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酸丁酯氣體檢測管142L Butyl acetate 的詳細介紹
MeasuringRange
10 to 300 ppm
Number of PumpStrokes
2
CorrectionFactor
1
SamplingTime
4 minutes per pumpstroke
DetectingLimit
2 ppm (n=2)
ColorChange
Yellow → Dark brown →Pale blue after few minutes
ReactionPrinciple
CH3CO2(CH2)3CH3 + Cr6+ + H2SO4 → Cr3+
Coefficient ofVariation15% (for 10 to 100ppm)， 10% (for 100 to 300 ppm)ShelfLife2 YearsCorrectionsforSubstance
Concentration
Interference
Change color by itself
Alcohols
-Plus error
Dark brown (few minuteslater)
Pale blue
Ketones
-Plus error
Esters
-Plus error
Aromatic HCs
-Pluserror
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