(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]