The hydrometer jar tests for complete particle size distribution in soils that require sedimentation methods to determine silt and clay fractions. Soil specimens mix in a solution of water and sodium hexametaphosphate. Hydrometers measure suspended solids in sedimentation cylinders over time periods of up to 24 hours. The cylinder features a heavy-wall clear glass scribed at the 1,000 ml mark. The optional solid rubber stopper prevents sample loss during agitation.
Accessory:
- RST13-S Solid Rubber Stopper #13
