丙酮檢測管151 Acetone CH3COCH3
Acetone No.151
CH3COCH3

Performance


MeasuringRange

0.05 to 0.8%

0.8 to 2.0%

Number of Pump Strokes

2

1

Correction Factor

1

2.5

SamplingTime

2 minutes per pumpstroke

DetectingLimit

0.003% (n=2)

ColorChange

Orange → Darkgreen

ReactionPrinciple

CH3COCH3 + K2Cr2O7 + H2SO4 + H2O → Cr2(SO4)3
Coefficient ofVariation 10%(for 0.01 to 0.2 %), 5% (for 0.2 to 0.8 %)
ShelfLife 3Years
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

Sulfurdioxide

500 ppm
Plus error

Produce greenstain

Hydrogensulfide

500ppm

Plus error

Produce darkgreen

Alcohols, Esters,Ketones

-
Plus error

Produce dark greenstain

Propane

0.2%

Yes

Produce dark greenfor whole layer

Aromatic HCs.

500ppm

Plus error

Produce darkgreen



Othersubstance measurable with this detector tube


Substance

Correction Factor

Pump Strokes

Measuring Range