Isopropyl Alcohol Detection Tubes (20 to 440 ppm)
Gastec Detection Tube No. 113LL measures Isopropyl Alcohol with a Range of 20 to 460 ppm
- Measuring Range: 20 to 200 ppm, 300 yo 460 ppm
- Number of Pump Strokes: 2, 1
- Correction Factor: 1, 2.3
- Sampling Time: 2 minutes per pump stroke
- Detecting Limit: 7 ppm (2 pump strokes)
- Changes from Pale vermilion to Pale blue
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle: CH3CH(OH)CH3 + Cr6+ + H2SO4 → Cr3+
- Relative Standard Deviation: 10% (for 20 to 60 ppm), 4% (for 60 to 200 ppm)
- 2 Year Shelf Life
- Store the tubes at cool and dark place.
Possible coexisting substances and their interferences:
| Substance |
Interference |
Changes color by itself to |
| Alcohols |
+ |
Pale blue |
| Esters, Ketones |
No |
No |
| Aliphatic hydrocarbons |
No |
No |
| Aromatic hydrocarbons |
No |
No |
Other substance measurable with this detector tube:
| Substance: |
Correction Factor |
No. of Pump Strokes: |
Measuring Range:
(ppm) |
| Propyl alcohol |
by scale |
2 |
55 to 170 |
Ethylene glycol
monobutyl ether |
by scale |
2 |
60 to 400 |
Ethylene glycol
monoethyl ether |
2.3 |
2 |
46 to 460 |
Ethylene glycol
monomethyl ether |
2.2 |
2 |
44 to 440 |
| 1-Methoxy-2-propanol |
1.3 |
2 |
26 to 260 |
Isopropyl Alcohol Detection Tubes (20 to 440 ppm)
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