過氧化氫檢測管32 Hydrogen peroxide 的詳細介紹
 過氧化氫檢測管32 Hydrogen peroxide
Hydrogen peroxide     No.17L H2O2
Performance
 
Measuring Range
0.5 to 10 ppm
Number of Pump Strokes
5
Correction Factor
1
Sampling Time
1minute per pump stroke
Detecting Limit
0.1 ppm (n=5)
Color Change
White → Yellow
Reaction Principle
H2O2 + TiSO4 → Yellow Product
Coefficient of Variation 10% (for 0.5 to 2 ppm), 5% (for 4 to 10 ppm)
Shelf Life 3 Years
Corrections for
temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)


Substance
Concentration
Interference
Change color by itself
Chlorine
-
No effect
No discoloration
Ozone
-
No effect
No discoloration
Nitrogen dioxide
-
No effect
No discoloration
Acetaldehyde
50 ppm
Faint demarcation
No discoloration
Formaldehyde
10 ppm
Minus error
No discoloration


Other substance measurable with this detector tube


 
Calibration gas generation Diffusion tube method


 

TLV-TWA TLV-STEL Explosive range
1ppm - -