DIN EN 1948-4:2010-12

The European Standard DIN EN 1948-4 describes the sampling and analysis of dioxin-like PCBs and supplements the standards DIN EN 1948-1 on sampling of PCDDs/PCDFs, DIN EN 1948-2 on extraction and clean-up of PCDDs/PCDFs and DIN EN 1948-3 on identification and quantification of PCDDs/PCDFs. It specifies sampling from stationary sources, extraction, clean-up, identification and quantification procedures of the dioxin-like PCBs and PCBs designated by the World Health Organization (WHO). This method is optimised to measure PCB concentrations of about 0,01 ng WHO-TEQ_PCB/m³. In addition to the 12 non- and mono-ortho-PCBs, the present document is also applicable to measure further PCB-congeners like the so-called "marker PCB" 28, 52, 101, 138, 153, 180. The European Standard DIN EN 1948-4 has been prepared under a mandate given by the EU and EFTA and supports essential requirements of EC Directives. For validation of the method, PCB measurements have been carried out at a waste incinerator and a shredder plant with the participation of German sampling and analytical laboratories. Therefore, the standard contains performance characteristics and important guidance for sampling and analysis over a broad PCB concentration range gained during the mandated validation measurements. The European Standard DIN EN 1948-4 is a process standard and deals in particular with aspects of environmental protection focusing on dioxins, PCBs, POPs and related compounds which fall under the Stockholm Convention. It is directed at users from regulatory authorities, test institutes, research institutes as well as plant operators and equipment manufacturers. The European Standard DIN EN 1948-4 has been prepared by CEN/TC 264 "Air quality" with the intensive collaboration of German experts in WG 1 "Dioxins and PCBs (Emissions)" (secretariat and chairmanship: DIN).