{"data":{"id":"us/40-cfr-792.135","jurisdiction":"us","citation":"40 CFR 792.135","heading":"Physical and chemical characterization studies.","body":"(a) All provisions of the GLPs shall apply to physical and chemical characterization studies designed to determine stability, solubility, octanol water partition coefficient, volatility, and persistence (such as biodegradation, photodegradation, and chemical degradation studies).\n(b) The following GLP standards shall not apply to studies designed to determine physical and chemical characteristics of a test, control, or reference substance:\nSection 792.31 (c), (d), and (g)\nSection 792.35 (b) and (c)\nSection 792.43\nSection 792.45\nSection 792.47\nSection 792.49\nSection 792.81(b) (1), (2), (6) through (9), and (12)\nSection 792.90\nSection 792.105 (a) through (d)\nSection 792.113\nSection 792.120(a) (5) through (12), and (15)\nSection 792.185(a) (5) through (8), (10), (12), and (14)\nSection 792.195 (c) and (d)","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT","PART 792—GOOD LABORATORY PRACTICE STANDARDS","Subpart G—Protocol for and Conduct of A Study"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"c8956539e866de22712dc9107f4d94bba55c027a578b815c4b33aaaafc2fccea","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-792.130","next":"us/40-cfr-792.185"},"notice":"GroundRules: Original legal text. Not legal advice."}