Hydrometer Analysis of Soils

Stirring Apparatus, Soil Hydrometers, Hydrometer Sedimentation Cylinder, Sodium Hexametaphosphate, and a Constant Temperature Bath are basic equipment needed for hydrometer analysis. They meet ASTM D7928 and AASHTO T 88 standards.


Stirring Apparatus

Starting at $375.50
Models: SA-12, SA-10
Model: SA-1
Model: SA-2

Sodium Hexametaphosphate

Starting at $8.50
Models: SA-20, SA-20C

Constant Temperature Bath

Starting at $3,140.00
Models: SA-25, SA-25F

Tests for complete particle size distribution in soils require sedimentation methods to determine silt and clay fractions. Soil specimens are mixed in a solution of water and sodium hexametaphosphate.

  • Stirring Apparatus thoroughly mixes soil samples with mixing blade.
  • Soil Hydrometers measure suspended solids during testing.
  • Hydrometer Sedimentation Cylinder, also called a hydrometer jar, is used with the soil hydrometers for testing suspended solids.
  • Sodium Hexametaphosphate is a dry powder dispersion agent used in mixing soil sample solutions.
  • Constant Temperature Bath maintains uniform temperature in hydrometer testing.