… or particulate substance that is washed out of the atmosphere and deposited in the soil per unit of time during a precipitation event. In the convention of the … (April 2006 edition), which AUSTAL applied up to version 3.1.2, the input into the soil is calculated exactly under the position at which the substance is washed out … or particulate substance that is washed out of the atmosphere and deposited in the soil per unit of time during a precipitation event. In the convention of the …