In the frame of regulation, it may be requested to check the harmlessness of asphalt mixes for any roadwork. In addition to asbestos, PAHs (Polynuclear Aromatic Hydrocarbons) investigation is carried out.

In this interlaboratory comparison (programme 51C) , laboratories will be assessed for the measurement of 16 PAHs in bituminous waste.

This proficiency test was successfully conducted in 2021.

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