864.8200—Blood cell diluent.
        
        (a) Identification.
         A blood cell diluent is a device used to dilute blood for further testing, such as blood cell counting.
    
    
        
        (b) Classification.
         Class I (general controls). This device is exempt from the premarket notification procedures in subpart E of  part 807 of this chapter subject to the limitations in  § 864.9.