醋酸檢測管81L Acetic acid CH3CO2H 的詳細(xì)介紹
醋酸檢測管81L Acetic acid CH3CO2H
Acetic acid                    No.81L
CH3CO2H

Performance
 
Measuring Range
0.125 to 0.25 ppm
0.25 to 10 ppm
10 to 25 ppm
Number of Pump Strokes
2
1
1/2
Correction Factor
1/2
1
2.5
Sampling Time
1.5 minutes per pump stroke
Detecting Limit
0.05 ppm (n=2)
Color Change
Pink → Pale Yellow
Reaction Principle
CH3CO2H + Base → Reaction product
Coefficient of Variation 10% (for 0.25 to 3 ppm), 5% (for 3 to 10 ppm)
Shelf Life 2 Years
Corrections for
temperature & humidity Temperature correction is necessary
Store the tubes at in the refrigerator to keep at 10oC(50oF) or below.



Possible coexisting substances and their interferences (NOTE)


Substance
Concentration
Interference
Change color by itself
Ammonia
Higher than 2 times
-
No
Chlorine, sulphur dioxide, Nitrogen dioxide
 
+
Pale Yellow
Formic Acid, Acetic anhydride
 
+
Pale Yellow