Gastec 75L Quick-measuring Detector tubes tert-Butyl mercaptan (CH3)3CSH (0.5-30mg/m3)
Manufacturer: Gastec Model: 75L - Contact
See more: Equipment Calibration-Inspection & Repair Service
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Indicator: 1 to 15 mg/m^3
Measuring Range:
+ 0.5 to 1 mg/m^3, Number of Pump Strokes 2
+ 1 to 15 mg/m^3, Number of Pump Strokes 1
+ 15 to 30 mg/m^3, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Yellow → Pink
Reaction Principle: (CH3)3CSH +HgCl2 → (CH3)3CSHgCl + HCl
Coefficient of Variation: 10% (for 1 to 4 mg/m^3), 5% (for 4 to 15 mg/m^3)
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 minute per pump stroke | |||
| Detecting Limit | 0.1 mg/m3 (n=2) | |||
| Colour Change | Yellow → Pink | |||
| Reaction Principle | (CH3)3CSH +HgCl2 → (CH3)3CSHgCl + HCl HCl + Basic compounds → Chlorides |
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| Coefficient of Variation | 10% (for 1 to 4 mg/m3), 5% (for 4 to 15 mg/m3) | |||
| Shelf Life | 2 Years | |||
| Corrections for temperature & humidity | Temperature correction is necessary | |||
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Hydrogen sulphide | + | Pink | |
| Other mercaptans | + | Pink | |
| Dimethyl disulphide | No | No |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| 2-Mercaptoethanol | 0.5 | 1 | 0 |
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