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.
| 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 |
| Electric Muffle Furnace |
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| Temperature controller |
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| Electric heating plate |
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| Refrigeration system | New-type refrigeration compressor |
| Controlling temperature of cold trough | Cold trough I: RT ~ (-51) °C, ± 1°; Cold trough II:RT ~ (-80) °C, ± 1 °C |
| Ambient temperature | ≤ 30 ℃ |
| Relative humidity | ≤ 85 % |
| Ambient temperature | (-10)℃ ~ 35 ℃ |
| Relative humidity | ≤ 85 % |
| Sample cup Inner diameter | 31.0 ~ 32.0 mm |
| Sample cup Wall thickness | 1.0 ~ 1.5 mm |
| Temperature controlling accuracy | ± 0.5 ℃ |
| Refrigeration system | New-type refrigeration compressor |
| Cold trough | Two holes in one trough, and same temperature |
| Ambient temperature | ≤ 30 ℃ |
| 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 |
| Calorimeter type | Isoperibol |
| Oxygen filling | Fully automatic oxygen filling & releasing, fully automatic bomb raising & lowering |
| Bomb volume | 250 ml |
| Analysis time | < 8 min full test process: <10 min |
| Calorimeter type | Isoperibol |
| Temperature range | 5 to 40°C |
| Measurement range | 5 to 40 MJ/ kg |
| Operation Mode | A. Outer barrel temperature follows room temperature change mode Or B. Outer barrel temperature constant mode |
| Calorimeter type | Isoperibol |
| Temperature range | 5 to 40°C |
| Measurement range | 5 to 40 MJ/ kg |
| Operation Mode | The outer barrel temperature is constant |