[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR868.1900] [Page 299] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 868_ANESTHESIOLOGY DEVICES--Table of Contents Subpart B_Diagnostic Devices Sec. 868.1900 Diagnostic pulmonary-function interpretation calculator. (a) Identification. A diagnostic pulmonary-function interpretation calculator is a device that interprets pulmonary study data to determine clinical significance of pulmonary-function values. (b) Classification. Class II (performance standards).