Isopropyl Alcohol Detection Tubes (25 to 800 ppm)
Gastec Detection Tube No. 113L measures Isopropyl Alcohol with a Range of 20-800 ppm.
- Measuring Range: 20 to 50 ppm, 50 to 800 ppm
- Number of Pump Strokes: 2, 1
- Correction Factor: 0.4, 1
- Sampling Time: 2 minutes per pump stroke
- Detecting Limit: 15 ppm (2 pump strokes)
- Color Change: Pale vermilion → Pale blue
- Corrections for temperature & humidity: Temperature correction is necessar
- Reaction Principle: CH3CH(OH)CH3 + Cr6+ + H2SO4 → Cr3+
- Relative Standard Deviation: 15% (for 50 to 200 ppm), 10% (for 200 to 800 ppm)
- 3 Year Shelf Life
- Store the tubes at cool and dark place.
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Alcohols |
|
+ |
Pale Blue |
| Acetone |
≦ 1200 ppm |
No |
No (≦ 1200) |
| Ethyl acetate |
≦ 450 ppm |
No |
No (≦ 450 ppm) |
| Toluene |
≦ 230 ppm |
No |
No (≦ 230 ppm) |
| Benzene |
≦ 75 ppm |
No |
No |
Other substances measurable with this detector tube
| Substance: |
Correction Factor: |
No of Pump Strokes: |
Measuring Range:
(ppm) |
| Propyl alcohol |
by scale |
1 |
130 to 560 |
| Vinyl trimethoxysilane |
by scale |
2 |
6.5 to 25.0 |
| Divinyl methoxysilane |
by scale |
2 |
6.5 to 25.0 |
Ethylene glycol
monomethyl ether |
by scale |
2 |
75 to 760 |
Ethylene glycol
monoethyl ether |
by scale |
2 |
110 to 1000 |
Ethylene glycol
monobutyl ether |
by scale |
2 |
200 to 1000 |
Ethylene glycol
monomethyl ether acetate
(2-Methoxyethyl acetate) |
by scale |
2 |
300 to 1300 |
Isopropyl Alcohol Detection Tubes (25 to 800 ppm)
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