| Acetone | CH3COCH3 | NO.151L | |
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| Performance |
|
Measuring Range |
50 to 4000 ppm |
4000 to 12000 ppm |
|
Number of Pump Strokes |
2 |
1 |
|
Correction Factor |
1 |
3 |
|
Sampling Time |
2 minutes per pump stroke |
|
|
Detecting Limit |
5 ppm (n=2) |
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|
Color Change |
Yellow |
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Reaction Principle |
CH3COCH3 + (NH2OH)3・H3PO4 |
|
| 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 color by itself |
|
Acrolein, Acetaldehyde |
1/10 time |
Plus error |
Produce reddish stain |
|
Aromatic hydrocarbons |
- |
No effect |
No discoloration |
|
Methyl isobutyl ketone |
- |
Plus error |
Produce reddish stain |
|
Methyl ethyl ketone |
- |
Plus error |
Produce reddish stain |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
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 |
| 500ppm | 750ppm | 2.1 to 13% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Red
H3PO4+ Base
Reddish product