Product standard:
　The instrument is designed according the national standard of People’s Republic of China GB/T259 Test Method for Water Soluble Acid & Alkali of Petroleum Products. It is applies to determine the water soluble acid & alkali in the liquid petroleum products, additives, lubricant greases, paraffin and waxy components as per GB/T259.
　what its operation steps is to extracts the water soluble acid & alkali in the sample using distilled water or ethanol solution. Then check color change of extracted solvent by methyl orange or phenolphthalein indicator respectively or determine the pH value of extracted solvent by acidity meter to ascertain whether there exists the soluble acid and alkali in the extracted solvent.

II. Main technical specifications and parameters
  1. Power supply: AC 220 V±10%, 50 Hz
  2. Total power consumption: ≤1200 W

3. Acidity meter:
    (1) Full scale: 0～14.00 pH
    (2) Accuracy: ±0.01 pH
  4. Separatory funnel: 250 ml
  5. Graduated flask: 100 ml, 50 ml
  6. Test tube: Φ18 mm×100 mm
  7. Conical flask: 100 ml
  8. Ambient temperature: -10 ℃～+35 ℃
  9. Relative humidity: ≤85%
  10. Heating power: 100 W～1000 W continuously adjustable

More Acid&Base Number Tester:

DSHD-251 Base Number Tester

DSHD-259  Water- Soluble  Acid & Base Tester

DSHD-264 Acid Number and Acidity Tester

DSHD-264A Automatic Acid Number Tester