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Acetic acid detection tube 145 Propyl acetate
Acetic acid detection tube 145 Propyl acetate, measuring range 20 to 500 ppm, is a semi quantitative method, but it has large errors, multiple interfe
Product details
乙酸检测管145 Propyl acetate
Propyl acetate No.145
CH3CO2CH2CH2CH3(CH3CO2C3H7)
| Performance |
Measuring Range |
20 to 500 ppm |
Number of Pump Strokes |
2 |
Correction Factor |
1 |
Sampling Time |
4 minutes per pumpstroke |
Detecting Limit |
4 ppm (n=2) |
Color Change |
Yellow → Blackishbrown → Pale blue after few minutes |
Reaction Principle |
CH3CO2CH2CH2CH3+ Cr6++ H2SO4→ Cr3+ |
| Coefficient ofVariation | 15% (for 20 to 100ppm), 10% (for 100 to 500 ppm) |
| ShelfLife | 2 Years |
| Correctionsfor temperature & humidity |
Temperature correction isnecessary |
| Store the tubes at cool and darkplace. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance |
Concentration |
Interference |
Change color by itself |
Alcohols |
- | Plus error |
Produce blackishbrown |
Ketones |
- | Plus error |
Produce blackishbrown |
Esters |
- | Plus error |
Produce blackishbrown |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 200ppm | 250ppm | 1.7to 8% |
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