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Methyl ethyl ketone (CH3COC2Humidity Correction5)
Item Item Details
(Price is for domestic US market only)
Methyl ethyl ketone (CH3COC2Humidity Correction5)
Item Name:
Methyl ethyl ketone (CH3COC2Humidity Correction5)
Item #:
GAS-152D

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Methyl ethyl ketone CH3COC2Humidity Correction5 NO.152D

152D


Performance

Measuring Range

2 to 600 ppm

Sampling Hours

1 to 10 hours

Detecting Limit

2 ppm (10 hours)

Color Change

Yellow Reddish Brown

Reaction Principle

Methyl Ethyl Ketone reacts with hydroxylamine phosphate to librate
phosphrous acid, which discolors pH indicator to reddish brown.

3CH3COC2Humidity Correction5 + (NH2OH)3Humidity Correction3PO4 H3PO4
Humidity Correction3PO4 + Base Phosphate

Coefficient of Variation

10% (for 20 to 600 ppm-hr)

Shelf Life 2 Years
Corrections for
temperature & humidity
Temperature correction is necessary
Store the tubes in the refrigerator to keep at 10oC (50oF) or below.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Aldehydes

-

Plus error

Discolors reddish brown

Ketones

-

Plus error

Discolors reddish brown

Acid gases

-

Plus error

Discolors reddish brown
(Unclear demarcation)


Other substance measurable with this detector tube

Name of Substance

Correction Factor

Measuring Range

Acetone

0.7

1.4 to 420 ppm

Methyl isobutyl ketone

2.0

4 to 1200 ppm

Acetaldehyde

0.6

1.2 to 360 ppm


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
200ppm 300ppm 1.7 to 11.4%

Range 2-600


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