---
kind: "section"
citation: "21 C.F.R. § 173.342"
title: "21"
number: "173.342"
heading: "Chlorofluorocarbon 113 and perfluorohexane."
url: "https://uscodex.org/cfr/21/173.342"
---

# §173.342. Chlorofluorocarbon 113 and perfluorohexane.


A mixture of 99 percent chlorofluorocarbon 113 (1,1,2-trichloro-1,2,2-trifluoroethane) (CAS Reg. No. 76-13-1, also known as fluorocarbon 113, CFC 113 and FC 113) and 1 percent perfluorohexane (CAS Reg. No. 355-42-0) may be safely used in accordance with the following prescribed conditions:

- (a) The additive chlorofluorocarbon 113 has a purity of not less than 99.99 percent.
- (b) The additive mixture is intended for use to quickly cool or crust-freeze chickens sealed in intact bags composed of substances regulated in parts [174](/cfr/21/part174.md), [175](/cfr/21/part175.md), 177, 178, and [§ 179.45](/cfr/21/179.45.md) of this chapter and conforming to any limitations or specifications in such regulations.

## Notes

### Amendments

[55 FR 8913, Mar. 9, 1990]

### Authority

Authority: 21 U.S.C. 321, 342, 348.

### Source

Source: 42 FR 14526, Mar. 15, 1977, unless otherwise noted.

### Amendments

[55 FR 8913, Mar. 9, 1990]