eCFR Reference Browser

---

title: "21 CFR §874.1120"

source: "https://www.ecfr.gov/current/title-21/section-874.1120"

title_number: "21"

volume_number: "8"

chapter_number: "Unknown"

subchapter_code: "H"

subchapter_subject: "MEDICAL DEVICES"

part_code: "874"

part_subject: "EAR, NOSE, AND THROAT DEVICES"

subpart_code: "B"

subpart_subject: "Diagnostic Devices"

section_number: "874.1120"

section_subject: "Electronic noise generator for audiometric testing."

cfr_reference: "21 CFR 874.1120"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 800 to 1299"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

(a)Identification. An electronic noise generator for audiometric testing is a device that consists of a swept frequency generator, an amplifier, and an earphone. It is intended to introduce a masking noise into the non-test ear during an audiometric evaluation. The device minimizes the non-test ear's sensing of test tones and signals being generated for the ear being tested.

(b)Classification. Class II.

§874.1120 - Electronic noise generator for audiometric testing.