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DIN EN 673
Glass in building - Determination of thermal transmittance (U value) - Calculation method; German version EN 673:2024
DIN EN 674 rev
Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method
DIN EN 675 rev
Glass in building - Determination of thermal transmittance (U value) - Heat flow meter method
DIN EN 17721
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH; German version EN 17721:2024
DIN EN ISO 9809-4
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/DIS 9809-4:2024); German and English version prEN ISO 9809-4:2024
DIN ISO 13964/A1
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)
EN 17721
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH
ISO/DIS 9809-4
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
NA 119-01-03-01-17 AK -dormant
pH value
