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  • 产品名称:一氧化碳气体检测管1L CO Carbon monoxide

  • 产品型号:1L
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
一氧化碳气体检测管1L CO Carbon monoxide,Measuring Range 2.5 to25 ppm 25 to 1000 ppm 1000 to 2000 ppm Number of Pump Strokes,一氧化碳气体检测管1L CO Carbon monoxide,一氧化碳气体检测管价格
详情介绍:

 

一氧化碳气体检测管1L CO Carbon monoxide
Carbonmonoxide         No.1L

CO

一氧化碳气体检测管1L CO Carbon monoxide

Performance
 

MeasuringRange

2.5to25ppm

25 to 1000 ppm

1000 to 2000ppm

Number of Pump Strokes

2 to 10

1

1/2

CorrectionFactor

1/2 to 1/10

1

2

SamplingTime

1 minute per pumpstroke

DetectingLimit

1 ppm (n=10)

ColorChange

Yellow → Blackishbrown

ReactionPrinciple

CO +Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3

Coefficient ofVariation10% (for25 to 300 ppm), 5% (for 300 to 1000 ppm)
ShelfLife3Years
Correctionsfor
temperature & humidity
Unnecessary
Store the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Acetylene

1/50 time

Plus error

Discolors darkbrown

Ethylene

2000 ppm

No effect

Discolors whole layerto brown

Hydrogen

5000 ppm

Plus error

Dark brown (wholelayer)(1%)

Sulfurdioxide

1/10 time

Plus error

Discolors blackishbrown

Nitrogendioxide

40 ppm

Plus error

60 ppmNO2 gives redstain

Carbondisulfide

1/50 time

Plus error

Discolors darkbrown

Halogens

1/5 time

Plus error

Discolors darkbrown

Mercaptans

1/5 time

Plus error

Discolors darkbrown

Hydrogensulfide

1/5 time

Plus error

Discolors darkbrown



Calibration gasgenerationDiffusion tubemethod



TLV-TWATLV-STELExplosive range
25 ppm-12.5 to 74%
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