CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER H—MEDICAL DEVICES (parts 800 to 898) > PART 864—HEMATOLOGY AND PATHOLOGY DEVICES > SUBPART I—Hematology Reagents (§864.8100 to §864.8950) > 864.8150—Calibrator for cell indices.

864.8150—Calibrator for cell indices.

(a) Identification. A calibrator for cell indices is a device that approximates whole blood or certain blood cells and that is used to set an instrument intended to measure mean cell volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC), or other cell indices. It is a suspension of particles or cells whose size, shape, concentration, and other characteristics have been precisely and accurately determined.
(b) Classification. Class II (performance standards).

Code of Federal Regulations

[45 FR 60631, Sept. 12, 1980]