Ⅰ. Purpose
GD-1792 Mercaptan Sulfur Tester for Distillate Fuels is designed and made as per the National Standard GB/T1792 Test Methods for Mercaptan Sulfur in Distillate Fuels (Potentiometric Titration Methods).
The mercaptan sulfur tester is suitable to determine mercaptan sulfur, which is in the range of 0.0003~0.01% (m/m), in the jet fuels, gasoline, kerosene, and light diesel, which do not contain hydrogen sulfide.
Ⅱ. Technical specification
(I) PHS-3B pH meter
1. Instrument grade: Grade 0.01;
2. Measurement range:
(1) pH: (0~14.00) pH;
(2) mV: (0~±1999) mV (automatic polarity display);
(3) Temperature: (0~100.0) °C;
3. Display resolution: 0.01 pH, 1 mV, 0.1 °C;
4. Temperature compensation range: (0~60) °C;
5. Basic error of the instrument:
(1) pH: ±0.02 pH±1 number;
(2) Temperature: ±0.5°C±1 number;
6. Temperature compensation error: ±0.01pH;
7. Repeatability error for electronic unit:
(1) pH: not more than 0.01 pH;
(2) mV: not more than 1 mV;
8. Repeatability error for the instrument: not more than 0.01 pH;
9. Stability of electronic unit: ±0.01pH±1 number/3h;
(II) 95-1 Magnetic stirrer:
1. Working mode: continuous;
2. Maximum stirring capacity: 2000 ml;
3. Heating power: 300 W, continuously adjusted;
4. Temperature controlling accuracy: ±0.1°C;
5. Temperature controlling range: 5 °C over room temperature~100°C.
6. Timing range: 20 to 1200 min.
7. Reversal time: 5~30 s.
(III) Titration tube: 10 ml, each scale division is 0.05 ml.
