I.
Reference method for the analysis of sulphur dioxide: ISO/FDIS 10498 (Standard in draft) Ambient air - determination of sulphur dioxide - ultraviolet fluorescence method. A Member State may use any other method which it can demonstrate gives results equivalent to the above method.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.