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Purpose:

GD-1792 Mercaptans Application Kit is designed and made as per the National Standard GB/T1792 “Test Methods for Mercaptan Sulfur in Distillate Fuels (Potentiometric Titration Methods)”. It 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.

GD-1792 Fuels Mercaptan Sulfur Testeris composed of GD-1792-1 PHS-3B pH meter, GD-1792-2 95-1 Magnetic Stirrer and other accessories. It is a standard instrument used for determining mercaptan sulfur in distillate fuels.

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;