[Code of Federal Regulations] [Title 40, Volume 23] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR160.135] [Page 161] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 160_GOOD LABORATORY PRACTICE STANDARDS--Table of Contents Subpart G_Protocol for and Conduct of a Study Sec. 160.135 Physical and chemical characterization studies. (a) All provisions of the GLP standards 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) of test, control, or reference substances. (b) The following GLP standards shall not apply to studies, other than those designated in paragraph (a) of this section, designed to determine physical and chemical characteristics of a test, control, or reference substance: Sec. 160.31 (c), (d), and (g) Sec. 160.35 (b) and (c) Sec. 160.43 Sec. 160.45 Sec. 160.47 Sec. 160.49 Sec. 160.81(b) (1), (2), (6) through (9), and (12) Sec. 160.90 Sec. 160.105 (a) through (d) Sec. 160.113 Sec. 160.120(a) (5) through (12), and (15) Sec. 160.185(a) (5) through (8), (10), (12), and (14) Sec. 160.195 (c) and (d) Subparts H-I [Reserved]