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  • 产品名称：乙二醇气体检测管165L Ethylene glycol

  • 产品型号：165L
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
乙二醇气体检测管165L Ethylene glycol，Measuring Range 10 to 100 mg/m3 Number of Pump Stroke 2 Correction Factor 1 Sampling Time 2 minutes per pump stroke Detecting乙二醇气体检测管165L Ethylene glycol
详情介绍：

乙二醇气体检测管165L Ethylene glycol
Ethylene glycol    No.165L

HOCH2CH2OH

乙二醇气体检测管165L Ethylene glycol

Performance
 

MeasuringRange

10 to 100mg/m3

Number of PumpStroke

2

CorrectionFactor

1

SamplingTime

2 minutes per pumpstroke

DetectingLimit

2 mg/m3(n=2)

ColorChange

Yellow → Reddishbrown

ReactionFormula

HOCO2CH2OH + Oxidiser → 2HCHO
3HCHO + (NH2OH)3H3PO4 → H3PO4
H3PO4 + Base→ Phosphate

Coefficient ofVariation15% (for 10 to 50mg/m3),10% (for 50 to 150 mg/m3)
ShelfLife3 Years
Correctionsfor
temperature & humidity		Temperature correction is necessary
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow.

Possible coexisting substances and theirinterferences(NOTE)


Substance

Concentration

Interference

Change color by itself

Aldehydes,Ketones,
Acid gases

-

Plus error

Discolor reddishbrown stain

Tetrahydrothiophene,
tert-Butyl mercaptan

1mg/m3

Plus error

Discolor reddishbrown
at 1 mg/m3 or higher



Othersubstance measurable with this detector tube


Calibration gasgenerationVaper pressuremethod



TLV-TWATLV-STELExplosive range
-C 100 mg/m33.2to 33%
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