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

  • 产品型号:12L
  • 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12L Hydrogen cyanide HCN,Measuring Range 0.36 to1.25 ppm 1.25 to2.5 ppm 2.5 to 60 ppm 60 to120 ppm Number of Pump Strokes 5 2 1 1/2 Correction Factor,氰化氢气体检测管价格
详情介绍:

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

CH3COCH3
氰化氢气体检测管12L Hydrogen cyanide
Performance

 

MeasuringRange

0.36 to1.25ppm

1.25 to2.5 ppm

2.5 to 60 ppm

60 to120 ppm

Number of Pump Strokes

5

2

1

1/2

CorrectionFactor

1/7

1/2

1

2

SamplingTime

2 minutes per pumpstroke

DetectingLimit

0.1 ppm (n=5)

ColorChange

Yellow → Red

ReactionPrinciple

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

Coefficient ofVariation

10% (for 2.5 to 20ppm), 5% (for 20 to 60 ppm)

ShelfLife2Years
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

Sulfurdioxide

20 ppm

Plus error

Reddiscoloration

Hydrogensulfide

5 ppm

Plus error

Reddiscoloration



Othersubstance measurable with this detector tube


Substance

Correction Factor

Pump Strokes

Measuring Range

Acetone cyanohydrine

1.15

1

2.88 to 69 ppm

Boron trichloride

by scale

2

0.5 to 20ppm



Calibration gasgenerationDiffusion tubemethod


 


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