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Feather and down - Test methods - Determination of the quantitative composition of feather and down blended with other materials; German and English version prEN 18226:2025

Project

prEN 18226

Feather and down - Test methods - Determination of the quantitative composition of feather and down blended with other materials

Hydraulic bound and unbound mixtures (including byproducts and waste materials)

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 a detection method for Salmonella spp. and an enumeration method for Escherichia coli and enterococci

Project

prEN 17733

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

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

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

Project

prEN 17728

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 — Determination of the inorganic arsenic content

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