{"data":{"id":"us/21-cfr-870.1450","jurisdiction":"us","citation":"21 CFR 870.1450","heading":"Densitometer.","body":"(a) Identification. A densitometer is a device used to measure the transmission of light through an indicator in a sample of blood.\n(b) Classification. Class II (performance standards).","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 870—CARDIOVASCULAR DEVICES","Subpart B—Cardiovascular Diagnostic Devices"],"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":"ea8f2b5d3a61106852c86ef47438dce4469cce80e1b7ad966056b73e9911750a","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-870.1435","next":"us/21-cfr-870.1650"},"notice":"GroundRules: Original legal text. Not legal advice."}