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  • 产品名称：三氯甲烷检测管137L Chloroform CHCl3

  • 产品型号：137L
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
三氯甲烷检测管137L Chloroform CHCl3，Measuring Range 0.5 to 10 ppm 10 to 27 ppm Number of Pump Stroke，三氯甲烷检测管137L Chloroform CHCl3
详情介绍：

 

三氯甲烷检测管137L Chloroform CHCl3
Chloroform                No.137L

CHCl3

三氯甲烷检测管137L Chloroform CHCl3

Performance
 

Measuring Range

0.5 to 10 ppm

10 to 27 ppm

Number of Pump Stroke

5

3

Correction Factor

1

2.7

SamplingTime

2 minutes per pumpstroke

DetectingLimit

0.1 ppm (n=5)

ColorChange

White → Palepurple

ReactionPrinciple

CHCl3 + I2O5 + H2S2O7 → Cl2
Cl2 + (CH3C10H5NH2)2→ Pale purple products

Coefficient ofVariation10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)
ShelfLife1Year
Correctionsfor
temperature & humidity		Temperature correction is necessary
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Cl2, Br2, I2

1/20 time

Plus error

Produce pale purplestain

Unsaturatedhalogenated HCs

1/20 time

Plus error

Produce pale purplestain

SaturatedhalogenatedHCs

1/2 time

Plus error

Produce pale purplestain



Othersubstance measurable with this detector tube


 
Calibration gasgenerationPermeation tube method


 


TLV-TWATLV-STELExplosive range
10ppm--
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