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  • 产品名称:氰化氢气体检测管12M Hydrogen cyanide

  • 产品型号:12M
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
氰化氢气体检测管12M Hydrogen cyanide HCN,Measuring Range 17 to 50 ppm 50 to 800 ppm 800 to 2400 ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/3 1 3 Sampling Time 1 minute per pump,氰化氢气体检测管价格
详情介绍:

 

氰化氢气体检测管12M Hydrogen cyanide Hydrogen cyanide     No.12M

HCN

氰化氢气体检测管12M Hydrogen cyanide

Performance
 

Measuring Range

17 to 50 ppm

50 to 800 ppm

800 to 2400 ppm

Number of Pump Strokes

2

1

1/2

Correction Factor

1/3

1

3

Sampling Time

1 minute per pump stroke

Detecting Limit

1 ppm (n=2)

Color Change

Yellow → Red

Reaction Principle

2HCN + HgCl2 → Hg(CN)2 + 2HCl
HCl + Base → Chloride

Coefficient of Variation

10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)

Shelf Life3 Years
Corrections for
temperature & humidity
Unnecessary
Store the tubes at cool and dark place.
 

Possible coexisting substances and their interferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Hydrogen sulfide

500 ppm

Plus error

Red discoloration

Sulfur dioxide

500 ppm

Plus error

Red discoloration



Other substance measurable with this detector tube


 
Calibration gas generationPermeation tube method


 


TLV-TWATLV-STELExplosive range
-C 4.7 ppm5.6 to 40%
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