{"data":{"id":"us/21-cfr-862.2920","jurisdiction":"us","citation":"21 CFR 862.2920","heading":"Plasma viscometer for clinical use.","body":"(a) Identification. A plasma viscometer for clinical use is a device intended to measure the viscosity of plasma by determining the time period required for the plasma to flow a measured distance through a calibrated glass tube. Measurements obtained by this device are used to monitor changes in the amount of solids present in plasma in various disorders.\n(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.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 862—CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES","Subpart C—Clinical Laboratory Instruments"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"aa1202b27467b513106b6918a280ce70426bad44d857dc149132f128c176caa0","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-862.2900","next":"us/21-cfr-862.3030"},"notice":"GroundRules: Original legal text. Not legal advice."}