(a) Identification.
         A gastric acidity test system is a device intended to measure the acidity of gastric fluid. Measurements of gastric acidity are used in the diagnosis and treatment of  patients with peptic ulcer, Zollinger-Ellison syndrome (peptic ulcer due to gastrin-secreting tumor of the pancreas), and related gastric disorders.
     
    
        
        (b) Classification.
         Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of  part 807 of this chapter subject to the limitations in  § 862.9.
     
    
        
            Code of Federal Regulations
        
        [52 FR 16122, May 1, 1987, as amended at 53 FR 21449, June 8, 1988; 66 FR 38787, July 25, 2001]