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  • 产品名称:苯乙烯检测管 124 Styrene

  • 产品型号:124
  • 产品厂商:日本GASTEC
  • 产品文档:
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简单介绍:
苯乙烯检测管 124 Styrene,Measuring Range 10 to 20 ppm 20 to 500 ppm 500 to 1500 ppm,苯乙烯检测管价格,氨气、氯气、二氧化氮、二氧化硫、甲醛、硫酸二甲酯、氟化氢、硫化氢、氯化氢、砷化氢、汞蒸气、苯、甲苯、二甲苯、甲醇、乙醇、乙烯、乙炔、乙醚、汽油、光气、氰化氢、丙烯腈、磷化氢等几十种检测管
详情介绍:

 

苯乙烯检测管 124 Styrene
Styrene               No.124

C6H5CH:CH2

苯乙烯检测管 124 Styrene

Performance
 

MeasuringRange

10 to 20 ppm

20 to 500 ppm

500 to 1500ppm

Number of Pump Strokes

2

1

1/2

Correction Factor

1/2

1

3

SamplingTime

30 seconds per pumpstroke

DetectingLimit

1 ppm (n=2)

ColorChange

White → Yellow

ReactionPrinciple

C6H5CH:CH2+H2S2O7 → CondensationPolymer

Coefficient ofVariation15% (for20 to 100 ppm), 10% (for 100 to 500 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

Alcohols

0.5%

Plus error(Bleaching)

Nodiscoloration

Esters

0.5%

Plus error(Bleaching)

Nodiscoloration

Ketones

0.5%

Plus error(Bleaching)

Nodiscoloration



Othersubstance measurable with this detector tube


 

 
Calibration gasgenerationDiffusion tubemethod


 


TLV-TWATLV-STELExplosive range
20ppm40ppm1.1to 6.1%
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