Gas analysis - Conversion of gas mixture composition data (ISO 14912:2025); German version EN ISO 14912:2025

Soil improvers and growing media - Overview of sampling and sample preparation methods

Soil improvers and growing media - Overview of a detection method for Salmonella spp. and an enumeration method for Escherichia coli and enterococci

Soil improvers and growing media - Overview of sampling and sample preparation methods

Growing media - Overview of methods for the determination of the electrical conductivity, pH, dry matter, quantity, the total copper and zinc content, the water soluble chloride content, and the CaCl2/DTPA extractable nitrogen, P2O5 and K2O content

Soil improvers - Overview of methods for the determination of the dry matter, quantity, the copper, zinc, chloride, nitrogen, P2O5 and K2O content

Organic soil improvers - Overview of methods for the determination of the pH, electrical conductivity, the organic carbon content and the organic nitrogen content

Soil improvers and growing media - Overview of methods for the determination of the cadmium, lead, nickel, chromium (VI), mercury, inorganic arsenic, phosphonates, total chromium and the bioavailable nickel content

Soil improvers - Overview of methods for the determination of the dry matter, quantity, the copper, zinc, chloride, nitrogen, P2O5 and K2O content

Growing media - Overview of methods for the determination of the electrical conductivity, pH, dry matter, quantity, the total copper and zinc content, the water soluble chloride content, and the CaCl2/DTPA extractable nitrogen, P2O5 and K2O content