Ethyl acetate CH3CO2C2H5 NO.141L


Performance

Measuring Range

25 to 800 ppm

Number of Pump Strokes

2

Correction Factor

1

Sampling Time

3 minutes per pump stroke

Detecting Limit

5 ppm (n=2)

Color Change

Yellow Blackish brown Pale blue after few minute

Reaction Principle

CH3CO2C2H5 + Cr6+ H2SO4 Cr3+
Coefficient of Variation

15% (for 25 to 200 ppm), 10% (for 200 to 800 ppm)
Shelf Life 2 Years
Corrections for
temperature & humidity		 Temperature correction is necessary
Store the tubes at cool and dark place.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Alcohols

 -

Plus error

Discolors greenish brown

Ketones

 -

Plus error

Discolors greenish brown

Esters

 -

Plus error

Discolors greenish brown

Aromatic HCs

 -

Plus error

Discolors greenish brown


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
400ppm - 2 to 11.5%

Copyright(c) 2001 GASTEC CORPORATION. All rights reserved.