ISO 10390 Soil, treated biowaste and sludge - Determination of pH*, 2021-03-31 Update
ISO 10694 Soil quality - Determination of organic and total carbon after dry combustion (elementary analysis)
ISO 5725-2 Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method*, 2019-12-06 Update
BS ISO 20130:2018 history
2018BS ISO 20130:2018 Soil quality. Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates