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  • 产品名称：三氯甲烷（氯仿）检测管137CHCl3 Chloroform

  • 产品型号：137
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
三氯甲烷（氯仿）检测管137CHCl3 Chloroform，Measuring Range 4 to 10 ppm 10 to 100 ppm 100 to 400 ppm Number of Pump Stroke 7 5 3 Correction Factor，三氯甲烷检测管137 CHCl3 Chloroform，三氯甲烷检测管价格
详情介绍：

三氯甲烷（氯仿）检测管137CHCl3 Chloroform
Chloroform                No.137

CHCl3

三氯甲烷（氯仿）检测管137CHCl3 Chloroform

Performance
 

Measuring Range

4 to 10 ppm

10 to 100 ppm

100 to 400 ppm

Number of Pump Stroke

7

5

3

Correction Factor

0.4

1

4

SamplingTime

2 minutes per pumpstroke

DetectingLimit

1 ppm (n=7)

ColorChange

White → Orange

ReactionPrinciple

CHCl3 + I2O5 + H2S2O7 → Cl2
Cl2 + o-Tolidine → Orangeproducts

Coefficient ofVariation15% (for10 to 20 ppm), 10% (for 20 to 100 ppm)
ShelfLife3Years
Correctionsfor
temperature & humidity		Humidity correction is necessary
Store the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Cl2, Br2, I2

1/20 time

Plus error

Discolors toorange

Unsaturatedhalogenated HCs

1/20 time

Plus error

Discolors toorange

Saturatedhalogenated HCs

1/10 time

Plus error

Discolors toorange



Othersubstance measurable with this detector tube


 
Calibration gasgenerationPermeation tube method


 


TLV-TWATLV-STELExplosive range
10ppm--
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