This hydrometer measures the specific gravity of soil samples in suspension. It has been manufactured to the specifications of the American Society for Testing and Materials (ASTM). This hydrometer is often used with a sedimentation cylinder for soil analysis.
- Calibrated for use at 20°C (68°F)
- ASTM Number: 151H
- Specific gravity range: 0.995 to 1.038
- Subdivisions: 0.001
- Length: 11 in. (280 mm)