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Vinyl chloride  (CH2:CHCl)
Item Item Details
(Price is for domestic US market only)
Vinyl chloride  (CH2:CHCl)
Item Name:
Vinyl chloride (CH2:CHCl)
Item #:
GAS-131LA

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Vinyl chloride CH2:CHCl NO.131La


Performance

Measuring Range

0.25 to 0.5ppm

0.5 to 1ppm

1 to 20ppm

20 to 54ppm

Number of Pump Strokes

4

2

1

1/2

Correction Factor

1/4

1/2

1

2.7

Sampling Time

1 minute per pump stroke

Detecting Limit

0.05 ppm (n=4)

Color Change

Yellow Reddish brown

Reaction Principle

Vinyl chloride is oxidized to form hydrogen chloride to produce red stain.
CH2:CHCl + Cr6+ + H2SO4 HCl
HCl+ Base Chlorides

Coefficient of Variation 10% (for 1 to 6 ppm), 5% (for 6 to 20 ppm)
Shelf Life 2Years
Corrections for
temperature & humidity
Unnecessary
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

Ethylene

0.1%

Minus error

No discoloration

Tetrachloroethylene

3 times

Plus error

Produce reddish brown

Trichloroethylene

1/2 time

Plus error

Produce reddish brown

Toluene, Xylene

500 ppm

Minus error

No discoloration

Benzene,

400 ppm

Minus error

No discoloration


Other substance measurable with this detector tube

Substance

Correction
Correction Factor

Pump Strokes

Measuring Range

1,3-Dichloropropane

Factor: 0.5

2

0.5 to 10 ppm

p-Ethyl benzylchloride

Factor: 2.5

2

2.5 to 50 ppm

Ethyl chloroformate

Factor: 7

2

7 to 140 ppm

2-Methyl allyl chloride

Factor: 2.75

1

2.8 to 55 ppm

Methyl Chloroformate

Factor: 58

5

58 to 1160 ppm

Propylene dichloride

Factor: 40

2

40 to 800 ppm

1,2,4-Trichlorobenzene

Factor: 0.65

4

0.65 to 13 ppm


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
1 ppm - 3.6 to 23%
Range 0.25-54


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