GroundRules
21 CFR 866.4600: Ouchterlony agar plate.
Where this section sits in the code
- Title 21—Food and Drugs
- CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES
- SUBCHAPTER H—MEDICAL DEVICES
- PART 866—IMMUNOLOGY AND MICROBIOLOGY DEVICES
- Subpart E—Immunology Laboratory Equipment and Reagents
(a) Identification. An ouchterlony agar plate for clinical use is a device containing an agar gel used to examine antigen-antibody reactions. In immunodiffusion, antibodies and antigens migrate toward each other through gel which originally contained neither of these reagents. As the reagents come in contact with each other, they combine to form a precipitate that is trapped in the gel matrix and is immobilized.
(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 866.9.
Collected 2026-08-27T02:24:47Z. Source file · JSON