Tetrachloroethylene Cl2C:CCl2 NO.133HA
133HA


Performance

Measuring Range

7 to 20 ppm

20 to 300ppm

300 to 900ppm

Number of Pump Strokes

2

1

1/2

Correction Factor

1/3

1

3

Sampling Time

45 seconds per pump stroke

Detecting Limit

0.5 ppm (n=2)

Color Change

Yellow Reddish purple

Reaction Principle

Tetrachloroethylene is decomposed by oxidizing agent to
liberate hydrogen chloride, which produce reddish purple stain..
Coefficient of Variation

10% (for 20 to 100 ppm), 5% (for 100 to 300 ppm)
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

Chlorine, Bromine,
Hydrogen chloride

 -

Plus error

Produce reddish purple

1,1,1-Trichloroethane

3000 ppm

Plus error

Produce reddish purple stain
at 3,000 ppm

Trichloroethylene

 -

Plus error

Produce reddish purple
Unsaturated Halogenated HCs - Plus error Produce reddish purple


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
25ppm 100ppm -


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