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Chemicals used for treatment of water intended for human consumption - Ozone; German and English version prEN 1278:2024

Household and similar electrical air cleaners - Methods for measuring the performance - Part 2-7: Particular requirements for determination of ozone reduction

Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry; German version EN 14625:2024

IEC 60811-403 Ed.1: Electric and optical fibre cables - Test methods for non-metallic materials - Part 403: Miscellaneous tests - Ozone resistance test on crosslinked compounds

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