酸性氣體檢測管80 Acid gases 的詳細(xì)介紹
酸性氣體檢測管80 Acid gases
Acid gases                        No.80 

Performance (Acetic acid)
 
Measuring Range
1 to 2 ppm
2 to 40 ppm
40 to 80 ppm
Number of Pump Strokes
4
2
1
Correction Factor
1/2
1
2
Sampling Time
45 seconds per pumpstroke
Detecting Limit
0.5 ppm (n=4)
Color Change
Palereddish purple → Pale Yellow
Reaction Principle
Acid gases react withdetecting layer to produce yellow stain.
Coefficient ofVariation 10% (for2 to 40 ppm)
ShelfLife 2Years
Correctionsfor
temperature & humidity Unnecessary
Store the tubes in dark and coolplace

Possible coexisting substances and theirinterferences (NOTE)


Substance
Correction
Pump
strokes
Color Change
Measuring range
Hydrogen chloride
4
2
Pale reddishpurple
4 to 320 ppm
Chlorine
0.35
2
White
0.35 to 28 ppm
Nitric acid
2.5
2
Pale reddishpurple
2.5 to 200 ppm
Sulfur dioxide
0.75
2
Yellow
0.75 to 60 ppm
Nitrogen dioxide
0.1
2
Pinkish gray
0.1 to 80 ppm
Iodine
0.06
2
Light bluishgray