Mercaptan Sulfur Tester LMST-A10 determines mercaptan sulfur content present in petroleum products with help of the computer. This detection method is based on principle of Potentiometric titration method. It offers 0 to ±1999.5 Mv potential measuring range and 3 to 100 μg/g (ppm) Mercaptan sulfur measuring range. It ensures the accuracy of the results by titration curve smoothing and titration end position correction. It is used in laboratory, analysis room and petrochemical research departments of the ideal of the necessary device. Mercaptan Sulfur Tester detection method meets the international standard ASTM D3227.
| Potential measuring range | (0 to ±1999.5) Mv |
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| Intrinsic error | 0.1 % ±0.5 mV |
| Input impedance | Ri ≥1 × 1012 Ω |
| Burette capacity | 10 mL |
| Burette accuracy | ±0.1 % (F•S) |
| Titrating time | (60±20) s (F•S) |
| Mercaptan sulfur measuring range | (3 to100) μg/g (ppm) |
| Precision | r = 0.00007+0.027 X1 [X1 is the mean value of two test results., %( m/m)] |
| Ambient temperature | 10℃ to 40℃ |
| Relative humidity | ≤ 85 ％ |
| Power consumption | 300 W |
| Power supply | AC 220V±10V, 50Hz ±0.5Hz |
| Dimension | 260 × 380 × 400 mm (PC is not included) |
| Net weight | 8 kg (PC is not included) |
Mercaptan Sulfur Tester is used to automatically determine the end point, without indicator and suitable for a variety of petrochemical products in the light and dark oil basic nitrogen analysis. The titration results and automatic data storage, automatic printing, and can provide a complete analysis of titration data for use.
| Temperature Range | Ambient to 100°C |
| Temperature Precision | ± 0.1°C |
| Air Flow | 94 mL ± 5 mL/min, with flowmeters |
| Timing Unit | 0 to 99 min 59 s, resolution 1 s |
| Vessel Volume | 4000 ml × 2 |
| Power of Vacuum pump | 160 W |
| Negative power | 3.7 kPa（27.75 mmHg） |
| Power of shaking machine | 30 W |
| Penetrometer |
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| Circulatory Water Bath |
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| Measurement range | 0 to 600 penetration scale |
| Timing controller | 5 sec or 60 sec |
| Time accuracy | ± 0.1 seconds |
| Resolution | 0.01 mm |
| Measurement range | 0 to 600 penetration scale |
| Timing controller | 5 sec, 8 sec, 10 sec, 12 sec, 30 sec and 60 sec |
| Time accuracy | ± 0.1 seconds |
| Resolution | 0.01 mm |
| Bath type | Oil bath |
| Bath capacity | 5000 ml ± 50 ml |
| Ambient temperature | Room temperature to 35 °C |
| Relative humidity | ≤ 85 % |
| Evaporation bath type and size | Aluminum block bath, φ260 × 130 mm |
| Holes for testing | 3 pieces |
| Size of holes for testing cylinder | φ51 × 70 mm |
| Flow rate display | Flow meter |
| Evaporation bath type and size | Aluminum bath φ260 × 130 mm |
| Holes for testing | 5 pieces |
| Size of holes for testing cylinder | φ51 × 70 mm |
| Working temperature | 160 ℃ ~ 165℃ |
| Measuring range | 0 to 700 taper degree (digital display table 0-70 mm) |
| Timing device | Timing error is less than ±0.1 s |
| Resolution | 0.01 mm |
| Needle insertion accuracy | ±1 cone insertion degree |