(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).

(b) The following GLP standards shall not apply to studies designed to determine physical and chemical characteristics of a test, control, or reference substance:

Section 792.31 (c), (d), and (g)Section 792.35 (b) and (c)Section 792.43Section 792.45Section 792.47Section 792.49Section 792.81(b) (1), (2), (6) through (9), and (12)Section 792.90Section 792.105 (a) through (d)Section 792.113Section 792.120(a) (5) through (12), and (15)Section 792.185(a) (5) through (8), (10), (12), and (14)Section 792.195 (c) and (d)