CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT (Parts 700–799) > PART 792—GOOD LABORATORY PRACTICE STANDARDS > SUBPART C—Facilities (§792.41 to §792.51) > 792.47—Facilities for handling test, control, and reference substances.

792.47—Facilities for handling test, control, and reference substances.

(a) As necessary to prevent contamination or mixups, there shall be separate areas for:
(1) Receipt and storage of the test, control, and reference substances.
(2) Mixing of the test, control, and reference substances with a carrier, e.g., feed.
(3) Storage of the test, control, and reference substance mixtures.
(b) Storage areas for test, control, and/or reference substance and for test, control, and/or reference mixtures shall be separate from areas housing the test systems and shall be adequate to preserve the identity, strength, purity, and stability of the substances and mixtures.