---
kind: "section"
citation: "21 C.F.R. § 866.5080"
title: "21"
number: "866.5080"
heading: "Alpha -1-antichymotrypsin immunological test system."
url: "https://uscodex.org/cfr/21/866.5080"
---

# §866.5080. Alpha -1-antichymotrypsin immunological test system.

- (a) **Identification.** An alpha-1-antichymotrypsin immunological test system is a device that consists of the reagents used to measure by immunochemical techniques alpha-1-antichymotrypsin (a protein) in serum, other body fluids, and tissues. Alpha-1-antichymotrypsin helps protect tissues against proteolytic (protein-splitting) enzymes released during infection.
- (b) **Classification.** Class II (performance standards).

## Notes

### Authority

Authority: 21 U.S.C. 351, 360, 360c, 360e, 360j, 360 l, 371.

### Source

Source: 47 FR 50823, Nov. 9, 1982, unless otherwise noted.