Cyclohexanol C6H11OH NO.118


Performance

Measuring Range

5 to 100 ppm

Number of Pump Strokes

2

Correction Factor

1

Sampling Time

2 minutes per pump stroke

Detecting Limit

1 ppm (n=2)

Color Change

Yellow Pale blue

Reaction Principle

Cyclohexanol reduces potassium dichromate to form chromic sulfate,
which is pale blue in color
C6H11OH + K2Cr2O7 + H3PO4 Cr2(SO4)3
Coefficient of Variation 15% (for 5 to 50 ppm), 10% (for 50 to 250 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

Produce similar stain by themselves.
Aromatic hydrocarbons - Plus error Produce similar stain by themselves.


Calibration gas generation Vaper pressure method


TLV-TWA TLV-STEL Explosive range
50ppm - 1.2 to 5.3%

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