Petroleum Analysis Instrument
- DSHD-264A Automatic Acid Number Tester
- DSHD-5096A Copper Strip Corrosion Tester
- DSHD-1884 Petroleum Products Density Tester
- DSHD-264 Acid Number and Acidity Tester
- DSHD-0536 Coulometric Salt Content Analyzer
- DSHD-507 Insulating Oils Breakdown Voltage Tester
- DSHD-421 Insulating Oils Volumetric Resistivity Tester
- DSHD-0168 Petroleum Products Color Tester
- DSHD - 0059A lubricating oil evaporation loss tester
- DSHD-0232 Gas(LPG) Copper Strip Corrosion Tester-old type