Edaphologic tests: soil tests

Benefit description

The following specific soil tests, analyzes or determinations are carried out at the IGME Laboratories: Granulometric analysis of 8 sieved fractions and sedimentation (Stokes' law). Texture. Soil mechanics tests in the laboratory . See provision of the same name. pH determination: m:V ratio 1:2.5, 1:5, etc. pH measurement in a medium of H2O, CaCl2, UNE-EN ISO 10390:2022 Sludge, soils and treated biological waste. Determination of electrical conductivity. CEC Determination: Ammonium Acetate Method pH=7. Determination of exchange cations: Na, K, Mg and Ca. These determinations are made by AAS. See Feature: FAAS element analysis Determination of metallic elements by AAS in liquid samples (4 determinations). Determination of exchange acidity (Al, H). Determination of Organic Matter: UNE 103204:2019. Determination of the oxidizable organic matter content of a soil by the potassium permanganate method. Organic matter can also be determined with potassium dichromate. Sulfate determination: UNE-EN 1744-1:1999 Tests to determine the chemical properties of aggregates. Part 1: Chemical analysis. UNE 103201:2019. Quantitative determination of the content of soluble sulfates in water in a soil.. Determination of carbonate: Determination of Inorganic Carbon by difference between Total Carbon and Organic Carbon Det. of the Total Organic Carbon with an elemental analyzer in Performance: Elemental analysis CHSN Variants: Det. of carbon, nitrogen and sulfur with an analyzer elem.y Det. of Total Organic Carbon with an elemental analyzer. Determination of nitrogen: Performance: Elemental analysis CHSN Variant: Det. of carbon, nitrogen and sulfur with an elem analyzer. Determination of neutralization potential, limestone requirement or active limestone. For the determinations it is necessary to make a granulometric cut at 2 mm to keep the soil fraction. See in Performance: Sieving-Granulometry Variant: Sieving: 1 cut. The determinations require samples to be ground to test size. If this is not the case, the following must be requested: Sample treatment: crushed variant: Grinding in an agate ring mill (<100g).