[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR862.1170] [Page 189] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 862--CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES--Table of Contents Subpart B--Clinical Chemistry Test Systems Sec. 862.1170 Chloride test system. (a) Identification. A chloride test system is a device intended to measure the level of chloride in plasma, serum, sweat, and urine. Chloride measurements are used in the diagnosis and treatment of electrolyte and metabolic disorders such as cystic fibrosis and diabetic acidosis. (b) Classification. Class II.