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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: 21CFR868.1640]
 See Related Information on 868.1640 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 868 -- ANESTHESIOLOGY DEVICES

Subpart B--Diagnostic Devices

Sec. 868.1640 Helium gas analyzer.

(a)Identification. A helium gas analyzer is a device intended to measure the concentration of helium in a gas mixture during pulmonary function testing. The device may use techniques such as thermal conductivity, gas chromatography, or mass spectrometry.

(b)Classification. Class II (performance standards).
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