DIN ISO 13964/A1
-
Draft
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
At a glance
- Publication date
- 2025-06
- German title
-
Luftbeschaffenheit - Bestimmung von Ozon in der Außenluft - UV-photometrisches Verfahren - ÄNDERUNG 1: Konsenswert für den Absorptionsquerschnitt von Ozon bei Raumtemperatur bei der Quecksilberlinien-Wellenlänge (253,65 nm Luft) (ISO 13964:1998/Amd.1:2024); Text Deutsch und Englisch
- End date of the objection deadline
- 2025-06-25
- Number of pages
- 10
- Available in
- German, English
- Related manuals
Abstract
Noting that the major national measurement and standards bodies around the world have recommended that the new value for the absorption cross-section of ozone at room temperature at the mercury-line wavelength (253,65nm, air) (CCQM.O3.2019) be adopted into the methods and standards for measuring ozone in air it was decided to amend ISO 13964:1998 in order - to incorporate the change in the ozone absorption cross section value at 253.65 nm (air), (CCQM.O3.2019), - to correct the typographical errors in the reference pressure value in ISO 13964, - to harmonize the use of significant figures used in temperature and pressure values in the two methods, - to limit the amendments to changing only the ozone absorption cross-section value, the correction of the typographical errors in the reference pressure value, and the harmonization of temperature and pressure values.
Purchase VDI Standard
FAQ
Please note that the objection period has already expired.