Download or read book OECD Series on Testing and Assessment Guidance on Grouping of Chemicals, Second Edition written by OECD and published by OECD Publishing. This book was released on 2017-04-13 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidance document is part of the OECD effort to provide guidance for assessing the hazards of chemical substances while gaining efficiencies and improving animal welfare. The approach described in this guidance document is to consider closely related chemicals as a group, or category ...