The Split-Spoon Sampler is a commonly used soil sampling method for obtaining undisturbed samples for laboratory testing. It is typically used in conjunction with Standard Penetration Testing (SPT) to collect soil samples at specific depths.

The Standard Penetration Test (SPT) is a widely used in-situ soil testing method that serves multiple purposes. It is primarily used to determine soil density, measure soil strength, and assess soil liquefaction potential.

The Unified Soil Classification System (USCS) is a widely used soil classification system in geotechnical engineering. It classifies soils based on their grain size distribution, plasticity, and other properties.

The primary purpose of performing a soil compaction test is to determine the maximum dry density and optimum moisture content of a soil. This information is crucial for achieving proper compaction during construction to ensure adequate soil strength and stability.

Direct Shear Test, Triaxial Shear Test, and Unconfined Compression Test are all commonly used soil tests to determine the shear strength parameters of a soil. These tests measure the soil's resistance to shear forces and provide valuable information for geotechnical design.

The primary purpose of performing a consolidation test on a soil sample is to determine the soil's compressibility and consolidation characteristics. This information is crucial for evaluating the settlement behavior of soils under applied loads.

Constant Head Permeability Test, Falling Head Permeability Test, and Pumping Test are all commonly used soil tests to determine the permeability of a soil. These tests measure the soil's ability to allow water to flow through it.

The primary purpose of performing a sieve analysis on a soil sample is to determine the grain size distribution of the soil. This information is crucial for soil classification and understanding the soil's engineering properties.

Liquid Limit Test, Plastic Limit Test, and Shrinkage Limit Test are all commonly used soil tests to determine the Atterberg limits of a soil. These tests provide valuable information about the soil's consistency and plasticity characteristics.

The primary purpose of performing a Proctor compaction test on a soil sample is to determine the maximum dry density and optimum moisture content of the soil. This information is crucial for achieving proper compaction during construction to ensure adequate soil strength and stability.

The pH Test is commonly used to determine the pH of a soil. It measures the acidity or alkalinity of the soil, which is an important factor in assessing soil fertility and suitability for various agricultural and environmental applications.

The primary purpose of performing a soil resistivity test is to determine the soil's electrical resistivity. This information is useful for various applications, including subsurface exploration, groundwater investigations, and corrosion studies.

Loss on Ignition Test, Walkley-Black Method, and Total Organic Carbon Analysis are all commonly used soil tests to determine the organic matter content of a soil. These tests provide valuable information about the soil's fertility and carbon storage potential.

The primary purpose of performing a soil moisture content test is to determine the water content of a soil. This information is crucial for various applications, including geotechnical engineering, agriculture, and environmental studies.

Ammonium Acetate Extraction Method, Barium Chloride-Triethanolamine Method, and Sodium Acetate Method are all commonly used soil tests to determine the cation exchange capacity (CEC) of a soil. CEC is an important soil property that influences nutrient retention and availability for plant growth.