Glass in building - Determination of thermal transmittance (U value) - Calculation method

Inorganic fertilizers -Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C

Organic soil improvers - Methods for the determination of pH, electrical conductivity, organic carbon content and organic nitrogen content; German and English version prEN 17728:2026

Growing media - Methods for the determination of the electrical conductivity, pH, dry matter, quantity, total copper and zinc content, water soluble chloride content, and CaCl₂/DTPA extractable nitrogen, P₂O₅ and K₂O content; German and English version prEN 17731:2026

Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 4: Stainless steel cylinders with an Rₘ value of less than 1 100 MPa (ISO/FDIS 9809-4:2025); German version FprEN ISO 9809-4:2025

Air quality - Determination of ozone in ambient air - Ultraviolet photometric method - AMENDMENT 1: Consensus value for the ozone absorption cross-section at room temperature at the mercury-line wavelength (253,65 nm air) (ISO 13964:1998/Amd.1:2024); Text in German and English

Glass in building - Determination of thermal transmittance (U value) - Calculation method

Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 4: Stainless steel cylinders with an R m value of less than 1 100 MPa (ISO/FDIS 9809-4:2025)

Glass in building - Determination of thermal transmittance (U value) - Calculation method