醋酸芐基氣體檢測管147 Amtyl acetate    的詳細介紹   

醋酸芐基氣體檢測管147 Amtyl acetate
Amtyl acetate                                  No.147

 

CH3CO2(CH2)4CH3(CH3CO2C5H11)

 

 

  Performance 

MeasuringRange

10 to 200 ppm

Number of PumpStrokes

2

CorrectionFactor

1

SamplingTime

4 minutes per pumpstroke

DetectingLimit

2 ppm (n=2)

ColorChange

Yellow → Paleblue

ReactionPrinciple

CH3CO2(CH2)4CH3  + Cr⁶⁺  + H2SO4  → Cr³⁺

Coefficient ofVariation

15% (for 10 to 50ppm)， 10% (for 50 to 200 ppm)

ShelfLife2 YearsCorrectionsfor
temperature & humidityTemperature  correction is  necessaryStore the tubes at cool and darkplace.
Possible coexisting substances and theirinterferences(NOTE)

Substance

Concentration

Interference

Change color by itself

Alcohols

-

Plus error

Produce paleblue

Ketones

-

Plus error

Produce paleblue

Esters

-

Plus error

Produce paleblue

Calibration gasgenerationDiffusion tubemethod

TLV-TWATLV-STELExplosive range100ppm-1.1 to 7.5%