The instrument is designed and made as per the Industry Standard of Petrochemical SH/T0251-93 "Test Methods for Base Number of Petroleum Products". It is composed of ZD-2 Automatic Potential Titrimeter and DZ-1 Titration Device. It is suitable to determine base number of petroleum products and additive. It determines and calculates base number of sample based on acid-alkali neutralization principle, perchloric acid potentiometric titration methods, and potential changes to detect end point.

Characteristics

1. It is based on acid-alkali neutralization principle.

2. Five pieces measuring electrodes and three titrimeters with different sizes.

3. Wide measuring scale and high precision test.

Technical Parameters

1. Volumetric analysis:

(1) Titration condensation: 0.1 N;

(2) Controlling accuracy: ≤±0.02ml;

2. Automatic acid titration:

(1) Titration condensation: 0.1 N;

(2) Controlling accuracy: ≤±0.1pH;

3. Automatic potential control:

(1) Titration condensation: 0.1 N;

(2) Controlling accuracy: ≤10mV;

4. Temperature compensation:

(1) Manual compensation;

(2) 5~60°C;

5. Preset adjustment range of end point: pH 1 to 13 or ±100~1300 mV;

6. Preset controlling range for titration: 1~3 pH or 100~300 mV from end point;

7. Power supply: AC 220V±10%, 50 Hz;

8. Ambient temperature: 0~35°C;

9. Relative humidity: ≤85%;