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Landschaftsbauarbeiten 1
Vegetationstechnik, Sport- und Spielplätze, Grund- und Planungsnormen
Edition
2021-10
Öl- und Gasfeuerungen
Edition
2022-01
Energiemanagement
Energiemanagementsysteme und Energieaudits
Edition
2019-07
Edition
2020-11
Abwassertechnik 5
Rohre und Formstücke für Abwasserkanäle und erdverlegte Abwasserleitungen
Edition
2024-06
PR NF C93-830-1 ; PR NF EN IEC 60875-1
Fibre optic interconnecting devices and passive components - Non-wavelength-selective fibre optic branching devices - Part 1: Generic specification
SN EN IEC 61753-043-02
Fibre optic interconnecting devices and passive components - Performance standard - Part 043-02: Simplex patch-cord style single-mode fibre wavelength selective devices with cylindrical ferrule connectors for category C - Controlled environment
Edition
2022-10
SN EN IEC 61755-6-2
Fibre optic interconnecting devices and passive components - Connector optical interfaces - Part 6-2: Connection of 50 µm core diameter multimode physically contacting fibres - Non-angled for reference connector application, at wavelength of 850 nm using selected A1a fibre only
Edition
2018-08
SN EN 62788-1-4
Measurement procedures for materials used in photovoltaic modules - Part 1-4: Encapsulants - Measurement of optical transmittance and calculation of the solar-weighted photon transmittance, yellowness index, and UV cut-off wavelength
Edition
2016-12
UNE-EN ISO 14597
PETROLEUM PRODUCTS . DETERMINATION OF VANADIUM AND NICKEL CONTENT. WAVELENGTH-DISPERSIVE X-RAY FLUORESCENCE SPECTROMETRY (ISO 14597:1997)
Edition
1999-07-30