Hexane CH3(CH2)4CH3 NO.102L
102L


Performance

Measuring Range

10 to 50 ppm

50 to 1200 ppm

Number of Pump Strokes

5

1

Correction Factor

1/5

1

Sampling Time

2 minutes per pump stroke

Detecting Limit

1 ppm (n=5)

Color Change

Orange Dark green

Reaction Principle

Propylene reduces potassium dichromate to form
chromic sulfate, which is dark green in color
CH3(CH2)4CH3 + K2Cr2O7 + H2SO4 Cr3+
Coefficient of Variation 10% (for 50 to 400 ppm), 5% (for 400 to 1200 ppm)
Shelf Life 3 Years
Corrections for
temperature & humidity		 Unnecessary
Store the tubes at cool and dark place.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Acetylene, Alcohols

 -

Plus error

Produce dark green

Aromatic HCs

 -

Plus error

Produce dark green

Esters, Ethers

 -

Plus error

Produce dark green

Hydrogen sulfide

 -

Plus error

Produce dark green

Organic solvents (C3)

 -

Plus error

Produce dark green

Sulfur dioxide

 -

Plus error

Produce dark green


Other substance measurable with this detector tube

Substance

Correction

No. of Pump Strokes

Measuring Range

Acrylonitrile

Factor: 12

1

0.06 to 1.14%

Tert-Butyl alcohol

Factor: 10

2

0.05 to 1.2%

Chlorocyclohexane

Factor: 1

2

50 to 1200 ppm

Cyclohexane

Factor: 1.2

1

60 to 1440 ppm

Tube 102L Reading (n=2)

50

100

200

400

600

800

1000

1200

Diisobutyl Ketone Conc. (%)

0.2

0.3

0.5

0.7

0.8

0.9

1.0

1.05


Calibration gas generation High pressure gas cylinder method


TLV-TWA TLV-STEL Explosive range
50ppm - 1.1 to 7.5%


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