Gastec 165L 便携式气体检测管乙二醇检测管HOCH2CH2OH(10~100 mg / m3)

Indicator: 10 ~ 100 mg/m3
Measuring Range: 10 ~ 100 mg/m3, Number of Pump Strokes 2
Sampling Time: 3 minute per pump stroke
Colour Change: Yellow → Reddish brown
Reaction Principle: 
+ HOCH2CH2OH + Oxidiser → 2HCHO
+  3HCHO + (NH2OH)3H3PO4 → H3PO4
+ H3PO4 + Base → Phosphate
Coefficient of Variation: 15% (for 10 to 20 mg/m3),10% (for 20 to 100 mg/m3)
Nr. of tests: 5
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range 10 to 100 mg/m3
Number of Pump Strokes 2
Correction Factor 1
Sampling Time 3 minutes per pump stroke
Detecting Limit 2 mg/m3 (n=2)
Colour Change Yellow → Reddish brown
Reaction Principle HOCH2CH2OH + Oxidiser → 2HCHO
3HCHO + (NH2OH)3H3PO4 → H3PO4
H3PO4 + Base → Phosphate
Coefficient of Variation 15% (for 10 to 20 mg/m3),10% (for 20 to 100 mg/m3)
Shelf Life 3 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Aldehydes, Ketones, Acid gases   + Reddish brown
Tetrahydrothiophene, tert-Butyl mercaptan   + Reddish brown(1mg/m3)
Calibration gas generation Vaper pressure method
TLV-TWA TLV-STEL Explosive range
- C 100 mg/m3(H)(2014) 3.2 to 33%
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