产品详情
  • 产品名称:醋酸乙酯检测管141L Ethyl acetate

  • 产品型号:141L
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
醋酸乙酯检测管141L Ethyl acetate,Measuring Range 25 to 800 ppm Number of Pump Strokes 2 Correction Factor 1 Sampling Time 3 minutes per,醋酸乙酯检测管141L Ethyl acetate CH3CO2C2H5,乙酸乙酯检测管价格.
详情介绍:

 

醋酸乙酯检测管141L Ethyl acetate
Ethyl acetate           No.141L

CH3CO2C2H5

醋酸乙酯检测管141L Ethyl acetate

Performance
 

MeasuringRange

25 to 800 ppm

Number of PumpStrokes

2

CorrectionFactor

1

SamplingTime

3 minutes per pumpstroke

DetectingLimit

5 ppm (n=2)

ColorChange

Yellow → Blackishbrown → Light blue after few minute

ReactionPrinciple

CH3CO2C2H5 + Cr6+ + H2SO4 → Cr3+

Coefficient ofVariation

15% (for 25 to 200ppm), 10% (for 200 to 800 ppm)

ShelfLife2 Years
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

Alcohols

-

Plus error

Discolors greenishbrown

Ketones

-

Plus error

Discolors greenishbrown

Esters

-

Plus error

Discolors greenishbrown

Aromatic HCs

-

Plus error

Discolors greenishbrown



Othersubstance measurable with this detector tube


 
Calibration gasgenerationStatic gas dilutionmethod


 


TLV-TWATLV-STELExplosive range
400ppm-2 to 11.5%
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