DIN EN 16143:2013-05

This document (EN 16143:2013) has been prepared by Technical Committee CEN/TC 19 "Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin" (secretariat: NEN, Netherlands). The responsible national committee is Working Committee NA 062-06-14 AA "Chromatographische Analyse" ("Chromatographic analysis") at the Standardization Committee for Petroleum, Fuels, Lubricants and Related Products (FAM) of the Materials Testing Standards Committee (NMP) at DIN. This document specifies a procedure for the determination of the content of benzo[a]pyrene (BaP) in extender oils which are commonly used in the rubber industry for the production of tyres or parts of tyres. This method also yields the sum of the eight individual polycyclic aromatic hydrocarbons (PAHs) listed in Table 1. The intended working range for this method is in the 0,1 mg/kg to 10 mg/kg range. This document has been prepared under a mandate given to CEN by the European Free Trade Association and supports essential requirements of the European Directive 2005/69/EC. This European Directive contains restrictions on the marketing and use of polycyclic aromatic hydrocarbons (PAHs) in extender oils and tyres. Tyres are produced using extender oils that may contain PAHs not added intentionally. Due to the fact that PAHs can be incorporated during the production process into the rubber matrix, they can be present in various amounts in the final products. The presence of PAHs can be detected qualitatively and quantitatively using benzo[a]pyrene as marker. BaP and PAHs are dangerous substances classified according to the Directive 67/548/EEC as carcinogenic, mutagenic and toxic for reproduction.