critical study 

https://doi.org/10.1351/goldbook.CT06820
Investigation yielding the no observed adverse effect level that is used by the USEPA as the basis of the reference dose.
Source:
PAC, 2004, 76, 1033. (Glossary of terms used in toxicokinetics (IUPAC Recommendations 2003)) on page 1038 [Terms] [Paper]
Citation: 'critical study' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.CT06820 RIS BibTex EndNote
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Last revised: February 24, 2014