PBT and vPvB refer to substances with "Persistent, Bioaccumulative and Toxic" or "very Persistent and very Bioaccumulative" properties.

The assessment of PBT and vPvB properties is part of the chemical safety assessment required under the REACH Regulation. The chemical safety assessment shall be conducted for substances that are subjects to registration and manufactured or imported into EU in quantities of 10 tonnes or more per year, and for substances that are subjects to authorization.

ISO and GLP compliance
DHI performs ecotoxicological tests and QSARs aiming at the screening as well as the definitive criteria for P, vP, B, vB and T (see list below). At our ecotoxicological laboratory we perform tests in accordance with ISO 17025, accredited by DANAK (the Danish Accreditation and Metrology Fund) and in compliance with the OECD Principles of Good Laboratory Practice (GLP).