Achieve precise geological and agricultural analytics with Heathrow Scientific ASTM Soil Hydrometers. Specifically engineered to measure the specific gravity and colloidal content of heavy soil samples held in suspension, these precision glass instruments are an absolute necessity for geotechnical engineering, civil construction testing, and advanced agricultural diagnostics.Calibrated strictly for use at 20°C (68°F), the ASTM 151H model provides a highly accurate specific gravity measurement range from 0.995 to 1.038, while the ASTM 152H model is geared toward measuring soil colloids from -5 to 60g. When paired with a standard sedimentation cylinder, these hydrometers allow researchers to easily determine particle size distribution in fine-grained soils, clay, and silt. Manufactured to strict quality standards, they ensure repeatable, reliable data for compliance-driven environmental testing. Features and Benefits Calibrated for use at 20°C/68°F Specifications ASTM No.: 151H Color: Clear Length: 11 in (28 cm) Material: Glass Measuring Type(s): Specific Gravity Quantity: 1 Each Specific Gravity Range: 0.995 to 1.038 Subdivisions: 0.001 Type: Soil Warranty: 1 Year Ordering Authorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide. Catalog Numbers (MPN) Catalog / Item No. (MPN) Configuration 67151H ASTM 151H (0.995 to 1.038 Specific Gravity), 1 Each 67152H ASTM 152H (-5 to 60 g Soil Colloids), 1 Each
