[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR864.2875] [Page 215] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES--(Continued) PART 864--HEMATOLOGY AND PATHOLOGY DEVICES--Table of Contents Subpart C--Cell And Tissue Culture Products Sec. 864.2875 Balanced salt solutions or formulations. (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. These devices are exempt from the premarket notification procedures in subpart E of part 807 of this chapter. [45 FR 60586, Sept. 12, 1980, as amended at 54 FR 25044, June 12, 1989]