What does DNEL and PNEC stand for?
DNEL and PNEC values can increasingly be found in safety data sheets. What then distinguishes these values from occupational exposure limit values (OELVs) and biological limit values (BLVs)? In contrast to the German occupational exposure limit values and biological limit values, DNWL and PNEC values are derived from a European Regulation, whereby the DNEL values