Indicator: 50 ~ 4000 ppm
Measuring Range:
+ 50 ~ 4000 ppm, Number of Pump Strokes 2
+ 4000 ~ 12000 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: 3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4, H3PO4+ Base → Phosphate
Coefficient of Variation: 15% (for 50 to 500 ppm), 10% (for 500 to 4000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Details
Catalog
Manual
Manual tube
Performance
Measuring Range |
50 to 4000 ppm |
4000 to 12000 ppm |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
2 minutes per pump stroke |
Detecting Limit |
5 ppm (n=2) |
Colour Change |
Yellow → Red |
Reaction Principle |
3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4 H3PO4+ Base → Phosphate |
Coefficient of Variation |
15% (for 50 to 500 ppm), 10% (for 500 to 4000 ppm) |
Shelf Life |
2 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 |
Acrolein, Acetaldehyde |
1/10 time |
+ |
Red |
Aromatic hydrocarbons |
|
No |
No |
Methyl isobutyl ketone |
|
+ |
Red |
Methyl ethyl ketone |
|
+ |
Red |
Other substance measurable with this detector tube
Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
Methyl ethyl ketone |
Factor: 0.42 |
5 |
21 to 1680 ppm |
Propionaldehyde |
Factor: 0.47 |
2 |
24 to 1880 ppm |
Calibration gas generation |
Diffusion tube method |
TLV-TWA |
TLV-STEL |
Explosive range |
500 ppm(2014) |
750 ppm(2014) |
2.1 to 13% |