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ASTM D664 ASTM D2896 Auto Petroleum Product Total Acid and Base Value Tester TAN TBN Potentiom Titration Method
1. Product Introduction
GSSZ-V Alkalinity Automatic Titrator adopts the principle of potentiometric titration. Under computer control, it realizes automatic and visualized data processing of titration process. Different electrodes can be used for acid-base neutralization titration, precipitation titration, redox titration, complexation titration, non-aqueous titration (such as determination of mercaptan sulfur, acid (base) value in petrochemical oil products; acid value (acid value) in the food industry; acid value (acid value) in resins in the chemical industry) and other titrations; the instrument adopts imported titration unit to smooth the titration curve and correct the titration end point position to ensure the accuracy of the results. It is an essential instrument for petrochemical laboratories, analysis rooms and scientific research departments.
2. Reference standard
SH/T 0251-1993 (2004 confirmed version) Petroleum product base number determination method complies with GB/T264-1983 and covers GB/T7304-2000 standard
GB/T 6909.1 "Analysis method for boiler water and cooling water Determination of hardness High hardness"
GB/T 6909.2 "Analysis method for boiler water and cooling water Determination of hardness Low hardness" analysis method.
GBT 7304 Determination of acid value of petroleum products Potentiometric titration method
GB/T 18609 Determination of acid value of crude oil (potentiometric titration method)
GB/T 264 Determination of acid value of petroleum products
GB/T 258 Determination of acidity of light petroleum products
GB/T 12574 Determination of total acid value of jet fuel
Meet the corresponding ASTM D2896, ASTM D4739, ASTM D664, ASTM D7946
3. Product Features
1. Imported titration device is used. The computer operation is highly automated and the analysis results are accurate.
2. Automatic cleaning, automatic refilling, fixed value addition, and electromechanical are organically combined.
3. Dual high-resistance input, automatic endpoint judgment, automatic filtering of false endpoints, and stable and reliable electrode potential.
4. The titration curve (E-V) and the first-order derivative curve (DE/DV) are displayed in real time, the titration process is intuitive and clear, and the curve automatically scrolls when it exceeds the boundary.
5. Dynamic equivalence point titration (DET), equivalent equivalence point titration (MET), preset endpoint potentiometric titration (SET), pH correction (CAL), pH measurement (MEAS).
4. Product Parameters
| 1. Measuring range | mV: -2000.0~2000.0mV pH: 0~20.000pH |
| 2. Resolution | mV: 0.1mV; pH: 0.001pH |
| 3. Electronic unit error | mV: ±0.03%FS± 1 word pH: ±0.001pH ± 1 word |
| 4. Electronic unit input impedance | ≥3*1012Ω |
| 5. Electronic unit input current | ≤ 1*10-12A |
| 6. Electronic unit stability | ±0.3 mV± 1 Words/8h |
| 7. Burette volume | 10mL |
| 8. Minimum sending volume | 0.001mL |
| 9. Burette capacity allowable error (accuracy) | ±0.020mL |
| 10. Burette infusion or refilling speed | 55±5s/full tube |
| 11. Titration endpoint repeatability error | ≤0.2% (0.1mol/L HCL titrates 0.1mol/L NaOH) |
