(a) Identification.
         A balanced salt solution or formulation is a defined mixture of salts and glucose in a simple medium. This device is included as a necessary component of most cell culture systems. This media component controls for pH, osmotic pressure, energy source, and inorganic ions.
     
    
        
        (b) Classification.
         Class I (general controls). These devices are exempt from the premarket notification procedures in subpart E of  part 807 of this chapter subject to the limitations in  § 864.9.
     
    
        
            Code of Federal Regulations
        
        [45 FR 60586, Sept. 12, 1980, as amended at 54 FR 25044, June 12, 1989; 66 FR 38789, July 25, 2001]