Moisture Determination Apparatus (Dean-Stark): ASTM D95 Standard
Professional distillation setup for the precise determination of water content in petroleum, oils, and bituminous materials.
High-Precision Moisture Analysis
The Moisture Determination Apparatus, designed according to ASTM D95 and IP 74 standards, is the industry-standard equipment for measuring the water content in materials by distillation. Utilizing the Dean-Stark principle, this setup ensures that water is effectively separated from the sample and collected in a precision-graduated trap.
Manufactured from Type I Borosilicate 3.3 glass, the entire assembly is built to withstand prolonged heating and the aggressive chemical nature of organic solvents like Xylene or Toluene.
Technical Excellence & Design
- Premium Borosilicate 3.3 Glass: Offers high thermal shock resistance and superior chemical durability.
- Precision Ground Joints: Features interchangeable $B$-length joints (standardly B24/B29) for airtight connections and leak-proof distillation.
- Clear Graduations: The receiver (trap) features permanent, high-contrast markings for accurate reading of water volume.
- Complete Assembly: The kit standardly includes a Round Bottom Flask, a Dean-Stark Receiver (Trap), and a high-efficiency Liebig or Coil Condenser.
- Compliance: Designed to meet ASTM D95, IS 2363, and IP 74 testing protocols.
Standard Assembly Components & Capacities
| Component | Capacity / Size | Joint Size (Interchangeable) |
|---|---|---|
| Round Bottom Flask | 500 ml / 1000 ml | B24 or B29 |
| Receiver (Dean-Stark Trap) | 2 ml / 5 ml / 10 ml / 25 ml | B24 or B29 |
| Liebig Condenser | 200 mm / 300 mm / 400 mm | B24 or B29 |
Primary Applications
- Petroleum Industry: Measuring water in crude oil, fuel oils, and lubricating additives.
- Civil Engineering: Testing moisture content in bituminous materials and soil samples.
- Food Science: Analysis of moisture in spices, oils, and fats.


