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  • 产品名称：甲醇检测管111 CH3OH Methanol

  • 产品型号：111
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
甲醇检测管111 CH3OH Methanol，Measuring Range 0.002 to 0.004% 0.004 to 0.02% 0.02 to 1.5% 1.5 to 4.5%，气体检测管有一氧化碳、硫化氢、氨、甲醛、苯 、苯系物中苯 、甲苯 、二甲苯 、二氧化硫、氮氧化物、汽油 、液化石油汽 、氯气 、氯化氢、二氧化碳、磷化氢、二硫化碳、臭氧 、氟化氢 、甲醇 、乙醇
详情介绍：

 

甲醇检测管111 CH3OH Methanol
Methanol               No.111

CH3OH

甲醇检测管111 CH3OH Methanol

Performance
 

Measuring Range

0.002to 0.004%

0.004to 0.02%

0.02to 1.5%

1.5to 4.5%

Number of Pump Strokes

4

2

1

1/2

Correction Factor

1/9

1/5

1

3

Sampling Time

3 minutes per pumpstroke

Detecting Limit

0.0004% (n=4)

Color Change

Pink → Paleblue

Reaction Principle

CH3OH + Cr6+ + H2SO4 → Cr3+

Coefficient ofVariation

15% (for 0.02 to 0.5%), 10% (for 0.5 to 1.5 %)

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 byitself

Otheralcohols

-

Plus error

Produce similar stainby themselves

Carbondioxide

-

No effect

Nodiscoloration

Carbonmonoxide

-

No effect

Nodiscoloration

Sulfurdioxide

-

No effect

Nodiscoloration



Othersubstance measurable with this detector tube


 
Calibration gasgenerationStatic gas dilutionmethod


 


TLV-TWATLV-STELExplosive range
200ppm250ppm6 to36%
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