OEM No/Model: GD-1792
Purpose: The instrument 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 0.00030.01% (m/m), in the jet fuels, gasoline, kerosene, and light diesel, which do not contain hydrogen sulfide. The instrument is 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: (014.00) pH; (2) mV: (0±1999) mV (automatic polarity display); (3) Temperature: (0100.0) ; 3. Display resolution: 0.01 pH, 1 mV, 0.1 ; 4. Temperature compensation range: (060) ; 5. Basic error of the instrument: (1) pH: ±0.02 pH±1 number; (2) Temperature: ±0.5±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; 5. Temperature controlling range: 5 over room temperature100; 6. Timing range: 20 to 1200 min; 7. Reversal time: 530 s; (III) Titration tube: 10 ml, each scale division is 0.05 ml;
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