This method describes the procedure for determining the field dry density of a natural or compacted soil in situ, using a balloon densometer and rings of up to 0.20 ft (cubed) capacity. In theis test the dry density can be determined for the total material or for the material finer than a specified size.
Methods of testing soil for engineering purposes - Part E - Soil compaction and density tests - Determination of the field dry density of a soil - Balloon densometer method
