Download or read book OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 420: Acute Oral Toxicity - Fixed Dose Procedure written by OECD and published by OECD Publishing. This book was released on 2002-02-08 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A principle of the method is that in the main study only moderately toxic doses are used, and the administration of doses that are expected to be lethal should be avoided. This Guideline is intended primarily for use with rat. Groups of animals of a ...