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BESMAK

SEDIMENTATION (HYDROMETER) TEST SET – BSO-205

The Sedimentation (Hydrometer) Test Set is designed to determine the particle size distribution of fine-grained soils, including silt and clay, using the hydrometer sedimentation method. Manufactured in accordance with ASTM D422 and AASHTO T88, the system provides accurate and reliable soil classification for geotechnical laboratories.

Standards:

  • ASTM D422
  • AASHTO T88
Category:

Sedimentation (Hydrometer) Test Set for Soil Particle Size Analysis

The Sedimentation (Hydrometer) Test Set is designed to determine the quantitative particle size distribution of fine-grained soils that cannot be accurately analyzed using sieve testing alone.

Based on the sedimentation principle and hydrometer readings, the system measures the percentage of clay and silt particles suspended in water, enabling accurate soil classification for geotechnical engineering, highway construction, foundation engineering, and laboratory quality control.

The BESMAK Sedimentation (Hydrometer) Test Set is supplied with all essential accessories required to perform complete hydrometer analysis in accordance with internationally recognized testing standards.


Key Features

  • Designed for hydrometer sedimentation analysis
  • Suitable for clay, silt, and other fine-grained soils
  • Accurate particle size distribution determination
  • Complies with ASTM D422 and AASHTO T88
  • Complete laboratory testing system
  • Thermostatically controlled transparent water bath
  • Precision hydrometer included
  • High-power soil mixer
  • 250 ml glass beaker supplied
  • Laboratory thermometer included
  • Durable laboratory construction
  • Reliable and repeatable test results
  • Easy operation and maintenance
  • Long service life

Standards

  • ASTM D422
  • AASHTO T88

Standard Accessories

The Sedimentation (Hydrometer) Test Set includes:

  • Transparent Water Bath
  • 151 H Hydrometer
  • 151 H Hydrometer Meter
  • Glass Thermometer (0–50°C)
  • 250 ml Glass Beaker
  • Glass Baglet
  • High-Power Soil Mixer
  • Six 1000 ml Sedimentation Cylinders

Available Models

Product Code Product Name
BSO-205 Sedimentation (Hydrometer) Test Set
BSO-205/1 Stirrer for Hydrometer Test
BSO-205/2 Hydrometer Hand Mixer
BSO-205/5 Hydrometer 152 H

Hydrometer Sedimentation Test Principle

The hydrometer test is based on the sedimentation rate of soil particles suspended in water.

As the particles settle under the influence of gravity, hydrometer readings are taken at specified time intervals to determine the proportion of fine particles remaining in suspension. These measurements are then used to establish the particle size distribution curve of fine-grained soils.

Hydrometer analysis is commonly performed after sieve analysis to provide a complete particle size distribution of soils containing significant amounts of silt and clay.


Applications

The Sedimentation (Hydrometer) Test Set is suitable for:


Why Choose the BESMAK Sedimentation (Hydrometer) Test Set?

The BESMAK Sedimentation (Hydrometer) Test Set provides a complete and reliable solution for determining the particle size distribution of fine-grained soils.

Its comprehensive accessory package, precision measuring instruments, durable laboratory construction, and compliance with ASTM and AASHTO standards ensure accurate, reliable, and repeatable hydrometer analysis for routine and advanced geotechnical testing applications.


Frequently Asked Questions

What is a Sedimentation (Hydrometer) Test Set?

A Sedimentation (Hydrometer) Test Set is laboratory equipment used to determine the particle size distribution of fine-grained soils using the hydrometer sedimentation method.


What is the Hydrometer Test used for?

The hydrometer test is used to determine the percentage of clay and silt particles in a soil sample, allowing engineers to classify fine-grained soils and evaluate their engineering properties.


Which soils can be tested?

The apparatus is suitable for testing:

  • Clay
  • Silt
  • Fine-grained soils
  • Mixed fine soils

Which standards does the equipment comply with?

The equipment complies with the following standards:

  • ASTM D422
  • AASHTO T88

What accessories are included?

The standard package includes:

  • Transparent Water Bath
  • Hydrometer
  • Hydrometer Meter
  • Glass Thermometer
  • Glass Beaker
  • High-Power Soil Mixer
  • Six Sedimentation Cylinders

Why is hydrometer analysis important?

Hydrometer analysis provides an accurate determination of the particle size distribution of fine-grained soils where conventional sieve analysis alone is insufficient. It is an essential method for soil classification, geotechnical investigations, and foundation design.