Test Method Title
Standard Test Method for Particle-Size Analysis of Soils
Reference Number
ASTM D422
Material
Soil
Test Property
Grain Size
Description of Test
This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75-µm (retained on the #200 sieve) is determined by sieving, while the distribution of particle sizes smaller than 75-µm is determined by a sedimentation process, using a hydrometer to secure the necessary data.
Number of Test Specimens
1
Test Specimen Size
Material passing #10 sieve of 115 grams for sandy soil and 65 grams for silt and clay soil
Keywords
grain size, hydrometer analysis, hygroscopic moisture, particle size, sieve analysis