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Normas DIN – AENOR
DIN EN 1948-4/A1:2013-07

DIN EN 1948-4/A1:2013-07

Stationary source emissions - Determination of the mass concentration of PCDDs/PCDFs and dioxin-like PCBs - Part 4: Sampling and analysis of dioxin-like PCBs; German version EN 1948-4:2010/FprA1:2013 / Note: Date of issue 2013-07-01

Émissions de sources fixes - Détermination de la concentration massique en PCDD/PCDF et PCB de type dioxine - Partie 4: Prélèvement et analyse des PCB de type dioxine; Version allemande EN 1948-4:2010/FprA1:2013 / Attention: Date de parution 2013-07-01

Emissionen aus stationären Quellen - Bestimmung der Massenkonzentration von PCDD/PCDF und dioxin-ähnlichen PCB - Teil 4: Probenahme und Analyse dioxin-ähnlicher PCB; Deutsche Fassung EN 1948-4:2010/FprA1:2013 / Achtung: Erscheinungsdatum 2013-07-01

Fecha Anulación:
2014-03 /Withdrawn
Equivalencias internacionales:

EN 1948-4/FprA1 (2013-06)

Relación con otras normas DIN:

Reemplazada por: DIN EN 1948-4:2014-03

Resumen:
1) EN 1948-4 was elaborated with special carefulness and was validated by extensive validation measurements covering a wide concentration range. Nevertheless the described selection of the sampling standards (see EN 1948-4, Table 1) causes co-elution problems of PCB 127 and PCB 105 on the most common columns. The use of the columns HT-8 or Agilent XLB can avoid these co-elution problems, but they are not so common for routine analyses. The sampling standard PCB 127 was chosen in order to monitor the similar and most toxic congener PCB 126 and is of special importance for plants which mainly emit PCBs. In order to avoid the co-elution problems during routine analyses a more flexible specification is given and the following footnote to EN 1948-4, Table 1, is added: Footnote b) Sampling standards: Attention should be paid to possible co-elution problems of PCB 127 and PCB 105 on certain commercially available columns. If the co-elution problems cannot be avoided, it is allowed to omit the sampling standard PCB 127. 2) In order to avoid any misunderstanding with regard to the sampling compartments to be spiked with labelled standards a reference to EN 1948-1 should be added to the first sentence of EN 1948-4, Clause 6.2: "The sampling standards (see Table 1) shall be added to the different sampling media before sampling and the extraction standards shall be added to the samples before extraction according to EN 1948 Part 1."
Keywords:
Air purification, Air quality, Analysis, Cleaning, Concentration, Determination, Determination of content, Emission, Emission measurement, Emission sources, Hexachlorobenzene, Mass concentration, Mathematical calculations, Measurement, Measuring techniques, Methods, PCB, PCDD, PCDF, Performance characteristics, Pollutants, Polychlorinated biphenyls, Polychlorinated dibenzodioxines, Polychlorinated dibenzofuran, Procedures, Quality requirements, Sampling methods, Specification (approval), Springs (water), Stationary, Testing, Validation
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