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U.S. Department of Health and Human Services

CFR - Code of Federal Regulations Title 21
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Help | More About 21CFR
[Code of Federal Regulations]
[Title 21, Volume 8]
[Revised as of April 1, 2012]
[CITE: 21CFR874.1120]
 See Related Information on 874.1120 in CDRH databases



TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION
DEPARTMENT OF HEALTH AND HUMAN SERVICES
SUBCHAPTER H--MEDICAL DEVICES

PART 874 -- EAR, NOSE, AND THROAT DEVICES

Subpart B--Diagnostic Devices

Sec. 874.1120 Electronic noise generator for audiometric testing.

(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.
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