DD Form 1794. Grain-Size Analysis (Hydrometer Method)

DD Form 1794 - Grain-Size Analysis (Hydrometer Method) is utilized for conducting grain-size analysis of soil samples using the hydrometer method within the Department of Defense.

The form consists of sections where the testing personnel document information about the soil sample, test procedure details, test results, and calculations. The form may include sections for sample identification, hydrometer readings, and particle size distribution graphs.

When filling out DD Form 1794, it's crucial to accurately record the hydrometer readings and follow the correct testing procedure. The form helps in determining the particle size distribution of soil, which is essential for various engineering and construction projects.

Application Example: Civil engineers at a military construction site need to assess the suitability of soil for building foundations. By using DD Form 1794, they conduct a grain-size analysis to understand the distribution of particles in the soil, aiding in making informed engineering decisions.

No additional documents are typically required for filling out DD Form 1794. An alternative form could be ASTM D422, Standard Test Method for Particle-Size Analysis of Soils, which is a widely recognized standard for conducting grain-size analysis.