Gastec 70L 快速硫醇测量探测管R-SH (0.1-8ppm)
制造商: Gastec Model: 70L - 联系
Indicator: 0.5 ~ 4 ppm
Measuring Range:
+ 0.1 ~ 0.2 ppm, Number of Pump Strokes 4
+ 0.2 ~ 0.5 ppm, Number of Pump Strokes 2
+ 0.5 ~ 4 ppm, Number of Pump Strokes 1
+ 4 ~ 8 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: RSH + HgCl2 → RSHgCl + HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (for 0.5 to 1 ppm), 5% (for 1 to 4 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Details
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 1.5 minutes per pump stroke | ||||
| Detecting Limit | 0.05 ppm (n=4) | ||||
| Colour Change | Yellow → Red | ||||
| Reaction Principle | R SH + HgCl2 → RSHgCl + HClHCl + Base → Chloride |
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| Coefficient of Variation | 10% (for 0.5 to 1 ppm), 5% (for 1 to 4 ppm) | ||||
| Shelf Life | 2 Years | ||||
| Corrections for temperature & humidity | Unnecessary | ||||
| Store the tubes at cool and dark place. | |||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Acid gases | + | Red | |
| Hydrogen sulphide | No | No |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Butyl mercaptan | 1.6 | 1/2,1,2 or 4 | 0.16 to 12.8 ppm |
| tert-Butyl mercaptan | 1.0 | 0.1 to 8 ppm | |
| Ethyl mercaptan | 1.0 | 0.1 to 8 ppm | |
| Methyl mercaptan | 1.0 | 0.1 to 8 ppm | |
| Propyl mercaptan | 1.2 | 0.12 to 9.6 ppm |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
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