Indicator: 2~50 ppm
Measuring Range:
+ 1 ~ 2 ppm, 2 Number of Pump Strokes
+ 2 ~ 50 ppm, 1 Number of Pump Strokes
+ 50 ~ 100 ppm, 1/2 Number of Pump Strokes
Sampling Time: 45 seconds per pump stroke
Colour Change: Pink → Yellow
Reaction Principle: CH3CO2H + Base → Reaction product
Coefficient of Variation: 10% (for 2 to 10 ppm), 5% (for 10 to 50 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Details
Catalog
Manual tube
Manual
Performance
Measuring Range |
1 to 2 ppm |
2 to 50 ppm |
50 to 100 ppm |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
45 seconds per pump stroke |
Detecting Limit |
0.2 ppm (n=2) |
Colour Change |
Pink → Yellow |
Reaction Principle |
CH3CO2H + Base → Reaction product |
Coefficient of Variation |
10% (for 2 to 10 ppm), 5% (for 10 to 50 ppm) |
Shelf Life |
3 Years |
Corrections for temperature & humidity |
Humidity correction is necessary |
Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
Substance |
Concentration |
Interference |
Change colour by itself to |
Hydrogen chloride, Hydrogen cyanide,Nitric acid |
3 times or higher |
+ |
Yellow |
Chlorine, sulphur dioxide, Nitrogen dioxide |
1/2 times or higher |
+ |
Yellow |
Other substance measurable with this detector tube
Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
Acetic anhydride |
Factor: 0.3 |
1 |
0.6 to 15 ppm |
Acrylic acid |
Factor: 1.0 |
1 |
2 to 50 ppm |
Formic acid |
Factor: 2.6 |
1 |
5.2 to 130 ppm |
Isovaleric acid |
Factor: 1.0 |
1 |
2 to 50 ppm |
Maleic anhydride |
Factor: 0.4 |
1 |
0.8 to 20 ppm |
Methacrylic acid |
Factor: 0.9 |
1 |
1.8 to 45 ppm |
Propionic acid |
Factor: 1.5 |
1 |
3to 75 ppm |
Calibration gas generation |
Diffusion tube method |
TLV-TWA |
TLV-STEL |
Explosive range |
10 ppm(2014) |
15 ppm(2014) |
- |