Water Vapor Detection Tubes (0.05 to 2 mg/L)
Gastec Detection Tube No. 6L measures Water Vapor with a Range of (0.05) to 2 mg/l.
- Measuring Range: (0.05) to 1 mg/L, 1 to 2 mg/l
- Number of Pump strokes: 1, 1/2
- Correction Factor: 1, 2
- Sampling Time: 30 seconds per pump stroke
- Detecting Limit: 0.03 mg/l (1 pump stroke)
- Changes from Yellow to Purple
- Corrections for temperature & humidity: Unnecessary
- 3 Year Shelf Life
- Reaction Principle: H2O + Mg(ClO4)2 → Mg(ClO4)2・H2O
- Relative Standard Deviation: 10 % (for 0.05 to 0.2 mg/l), 5 % (for 0.2 to 1 mg/L)
- Store the tubes at cool and dark place
Possible coexisting substances and their interferences:
Substance |
Concentration |
Interference |
Changes color by itself to |
Alochols |
|
Unclear demarcation |
Purple (whole layer) |
Aldehydes |
|
Unclear demarcation |
Purple (whole layer) |
Ammonia |
≧ 10 ppm |
Unclear demarcation |
Yellowish green |
Ketones |
|
Unclear demarcation |
Purple (whole layer) |
Nitriles |
|
Unclear demarcation |
Purple (whole layer) |
Hydrocarbons |
|
No |
No |
Nitrogen dioxide |
|
No |
No |
Sulfur dioxide |
≧ 100 ppm |
+ |
No |
Water Vapor Detection Tubes (0.05 to 2 mg/L)
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