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  • 产品名称：氨气气体检测管3LA Ammonia NH3

  • 产品型号：3LA
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
氨气气体检测管3LA Ammonia NH3，Measuring Range 2.5 to 5ppm 5 to 100 ppm 100 to 200ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2 Sampling Time 30 seconds per pump，氨气气体检测管价格
详情介绍：
氨气气体检测管3LA Ammonia NH3 Ammonia                     No.3LA

NH3

氨气气体检测管3LA Ammonia NH3
Performance
 

Measuring Range

2.5to 5ppm

5 to 100 ppm

100 to 200ppm

Number of PumpStrokes

2

1

1/2

Correction Factor

1/2

1

2

Sampling Time

30 seconds per pumpstroke

Detecting Limit

0.5ppm (n=2)

Color Change

Purple →Yellow

Reaction Principle

3NH3 + H3PO4 → (NH4)3PO4

Coefficient ofVariation10% (for5 to 20 ppm), 5% (for 20 to 100 ppm)
ShelfLife3Years
Correctionsfor
temperature & humidity		Temperature correction is necessary
Store the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Carbondioxide

1%

Minuserror(20%)

-

Hydrazine

-

Plus error

Produce yellowdiscoloration

Amines

1/15

Plus error

Discolors at 5ppm(Yellow)



Calibration gasgenerationDiffusion tubemethod



TLV-TWATLV-STELExplosive range
25ppm35ppm15 to 28%
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