产品详情
  • 产品名称:硫化氢气体检测管4HP Hydrogen sulphide

  • 产品型号:4HP
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
硫化氢气体检测管4HP Hydrogen sulphide H2S,Measuring Range 0.25 to 0.5% 0.5 to 10 % 10 to 20 %硫化氢气体检测管4HP Hydrogen sulphide H2S,硫化氢气体检测管价格
详情介绍:

 

硫化氢气体检测管4HP Hydrogen sulphide
Hydrogen sulphide    No.4HP

H2S

硫化氢气体检测管4HP Hydrogen sulphide

Performance
 

Measuring Range

0.25 to 0.5%

0.5 to 10 %

10 to 20 %

Number of Pump Strokes

2

1

1/2

Correction Factor

1/2

1

2

Sampling Time

3 minutes per pump stroke

Detecting Limit

0.1% (n=2)

Color Change

Pale Blue → Blackish Brown

Reaction Principle

H2S + CuSO4 → CuS + H2SO4

Coefficient of Variation10% (for 0.5 to 3 %), 5% (for 3 to 10 %)
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

Ammonia

-

Produces blackish brown and dark blue color

Produces dark blue stain

Sulfur dioxide

2.5%

Minus error

No discoloration

Mercaptans

5 %

Plus error

No discoloration



Other substance measurable with this detector tube


 
Calibration gas generationHigh pressure gas cylinder method


 


TLV-TWATLV-STELExplosive range
10ppm15ppm4.0 to 44%
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