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  • 产品名称：四氯化碳检测管134L CCl4

  • 产品型号：134L
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
四氯化碳检测管134L CCl4，四氯化碳检测管134L CCl4 Carbon tetrachloride，Measuring Range 0.25 to 5 ppm 5 to 12 ppm Number of Pump Strokes 2 1 Correction Factor 1 2.4 Sampling，四氯化碳检测管价格
详情介绍：

 

四氯化碳检测管134L CCl4 Carbon tetrachloride     No.134L

CCl4

四氯化碳检测管134L CCl4

Performance
 

Measuring Range

0.25 to 5 ppm

5 to 12 ppm

Number of PumpStrokes

2

1

CorrectionFactor

1

2.4

Sampling Time

2 minutes per pumpstroke

Detecting Limit

0.05 ppm (n=2)

Color Change

White → Yellow

Reaction Principle

CCl4 + I2O5 + H2S2O7 → COCl2
COCl2 +(CH3)2NC6 H4CHO→ (CH3)2NC6 H4Cl2 + CO2
(CH3)2NC6H4Cl2 + (C6H5)2NH4 (White) → Reaction product (Yellow)

Coefficient ofVariation

10% (for 0.25 to 1 ppm), 5% (for 2 to 5 ppm)

ShelfLife1Year
Correctionsfor
temperature & humidity		Unnecessary
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Hydrogen chloride

-

None

Nodiscoloration

Chlorine, Bromine

5 ppm

Plus error

Produce yellowstain

Methyl bromide

20ppm

Plus error

Yellow

1,1,1-Trichloroethane

20 ppm

Plus error

Yellow


Calibration gasgenerationDiffusion tubemethod



TLV-TWATLV-STELExplosive range
5ppm10ppm-
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