Final answer:
The OSHA standard for soil classification often requires at least one visual or manual test. Soil scientists examine soil properties and horizons such as O, A, B, and C to aid in understanding and maintaining soil stability, which is integral to workplace safety under OSHA regulations.
Step-by-step explanation:
The OSHA standard referenced pertains to the classification of soil which should be based on at least one visual or manual test. Soil classification is critical for understanding how to protect workers from hazards related to soil stability, particularly in construction environments where soil integrity can affect trenching, excavations, and the stability of structures. Soil scientists play an essential role in such classification by examining the soil's physical properties, horizons, and composition. The soil scientist might look at various horizons in the soil profile, such as the O, A, B, and C horizons which include organic matter, topsoil, subsoil, and soil base respectively. The knowledge of soil properties and environmental factors are crucial in assessing soil quality and stability as part of a soil management program. This interdisciplinary domain requires a strong background in life sciences, physical sciences, and mathematics.
When it comes to OSHA standards, before issuing a new standard, there is an extensive process that involves public engagement and comment. The agency must demonstrate that a significant risk exists and that there are feasible measures employers can take to safeguard their employees. For the classification of soils, the results of testing methodologies, possibly developed by organizations like AOAC, are used to inform safe practices in the workplace including handling of soil and protection against soil-related hazards.