The Soil Hydrometers meet ASTM E 100 “Specification for ASTM Hydrometers.” The S-300 is graduated to read the specific gravity of the suspension. Model S-301 is graduated in grams per liter of the suspension. The Soil Hydrometer is made from molded seamless glass to ensure uniformity of volumetric displacement.

Please refer to the ordering information tab below before making your selection.

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Part NumberDescription
S-300ASTM Soils Hydrometer 151 H, range 0.995 to 1.038 S.G. by 0.001 division
S-301ASTM Soils Hydrometer 152 H, range -5 to +60 grams per liter with g/L divs

ASTM: D 422, E 100
AASHTO: T-88