HI 38084 Total Exchangeable Acidity Test Kit Product Description: The total exchangeable acidity (TEA) is a measure of the amount of acidic cations (hydrogen, aluminum, iron and manganese) present in soil. It is expressed in milliequivalent per 100 grams (meq/100 g) of soil. The more acidic it is a soil, the lower the soil pH value will be. Soils in ... Read More »