(a) Identification.
A calibrator for platelet counting is a device that resembles platelets in plasma or whole blood and that is used to set a platelet counting instrument. 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 60633, Sept. 12, 1980]