2021DIN EN ISO 20130:2021 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018); German version EN ISO 20130:2020
1970DIN EN ISO 20130 E:2019-12 Soil Quality Determination of Enzyme Activity Patterns in Soil Samples Using Colorimetric Substrates in Microplates (Draft)