Combined, Volume 04.08 and 04.09 feature 370 geotechnical and geo-environmental standards that cover soil testing, including compaction, sampling, field investigation, cyclic and dynamic properties, soil texture, plasticity, density characteristics, hydrological properties and hydraulic barriers, and rock for erosion control. Other standards focus on ground water and vadose zone investigations, how to measure the properties of soil-cement, and tests for peats, mosses, and humus.