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  • 产品名称：氮氧化物检知管11HA Nitrogen oxides

  • 产品型号：11HA
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
氮氧化物检知管11HA Nitrogen oxides，Measuring Range 50 to 2500ppm，氮氧化物检知管价格，一氧化碳、光气、氢氰酸、硫化氢、甲醛、乙醛、二氧化氮、次氯酸、过氧化氢，氯化氢、氮氧化物、碳氢化合物总量
详情介绍：

 

氮氧化物检知管11HA Nitrogen oxides
Nitrogen oxides       No.11HA

NO+NO2

氮氧化物检知管11HA Nitrogen oxides

Performance
 

Measuring Range

50 to 2500 ppm

Number of PumpStrokes

1

CorrectionFactor

1

Sampling Time

1 minute per pumpstroke

Detecting Limit

10 ppm (n=1)

Color Change

White → Green

Reaction Principle

NO + Cr6++ H2SO4→NO2
NO2 + (C6H5)2NH 仺 Green product

Coefficient ofVariation10% (for 50 to 400ppm), 5% (for 400 to 2500 ppm)
ShelfLife2 Years
Correctionsfor
temperature & humidity		Unnecessary
Store the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Hydrogenchloride

500 ppm

Faintdemarcation

Produce bluishpurple
at 100 ppm

Ozone

200 ppm

Faintdemarcation
two layers

Browndiscoloration

Sulfur dioxide,
Hydrogen sulfide

-

No effect

Nodiscoloration

Othersubstance measurable with this detector tube


 
Calibration gasgenerationNO2:Permeation tube method
NO:High pressure gas cylinder method


 


TLV-TWATLV-STELExplosive range
NO2:3ppm
NO:25ppm		NO2:5ppm-
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