丙酮检测管151 Acetone CH3COCH3

丙酮检测管151 Acetone CH3COCH3，Measuring Range 0.05 to 0.8% 0.8 to 2.0% Number of Pump Strokes 2 1 Correction Factor 1 2.5 Sampling Time 2 minutes per pump stroke Detecting Limit 0.003% (n=2)丙酮环乙烯检测管价格

丙酮检测管151 Acetone CH3COCH3的详细介绍

丙酮检测管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
Cyclohexene	1.0	1	0.05 to0.8%

Calibration gasgeneration

Diffusion tubemethod

TLV-TWA	TLV-STEL	Explosive range
500 ppm	750ppm	2.1to 13%