ATTENZIONE, per chi esegue i metalli alle emissioni è stata aggiornata la UNI EN 14385:2025, Emissioni da sorgente fissa – Determinazione dell’emissione totale di As, Cd, Cr, Co, Cu, Mn, Ni, Pb, Sb, Tl e V.
Ecco cosa è cambiato:
The main changes compared to the previous edition are listed below:
— in the Scope: Range of specific elements widened from 0,5 mg/m3 to 5 mg/ms;
— in the Scope: Table 1 Exhaust Gas matrix composition deleted; — in Clause 3: Definitions clarified and widened;
— in Clause 3: Elements split into Groups A and B for clarity;
— in5.1.2.7.2: Correction using a wet gas meter has been clarified;
— in Clause 5: Definitions of Chemicals and Quality have been clarified;
— inClause 5: Leak check methods has been moved to Annex B;
— in Clause 8: Treatment of Data from field blanks has been clarified and made explicit;
— in Clause 9: Expression of results has been clarified and treatment of data where a wet gas meter has been used has been expanded;
— in Annex F: Example of an Uncertainty Budget Assessment of the Standard has been added;
— in Annex G: Determination and reporting of limits of detection and quantification added and information on how to deal with elements below the level of quantification; — in Annex H: Alternative digestion method for filters by use of an HF-free digestion Mixture.