产品详情
  • 产品名称:氰化氢气体检测管12LL Hydrogen cyanide

  • 产品型号:12LL
  • 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12LL Hydrogen cyanide,Measuring Range 0.2 to 7 ppm Number of Pump Strokes 2 Correction Factor 1 Sampling Time 2 minutes per pump stroke Detecting Limit 0.05 ppm氰化氢气体检测管价格
详情介绍:

 

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

HCN

氰化氢气体检测管12LL Hydrogen cyanide

Performance
 

Measuring Range

0.2 to 7 ppm

Number of Pump Strokes

2

Correction Factor

1

Sampling Time

2 minutes per pump stroke

Detecting Limit

0.05 ppm (n=2)

Color Change

Yellow → Pink

Reaction Principle

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

Coefficient of Variation10% (for 0.2 to 2 ppm), 5% (for 3 to 7 ppm)
Shelf Life2 Years
Corrections for
temperature & humidity
Humidity correction is necessary
Store the tubes at cool and dark place.
 

Possible coexisting substances and their interferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Hydrogen sulfide

1 ppm

Plus error

Red discoloration

Sulfur dioxide

1 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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