---
kind: "section"
citation: "21 C.F.R. § 640.50"
title: "21"
number: "640.50"
heading: "Cryoprecipitated AHF."
url: "https://uscodex.org/cfr/21/640.50"
---

# §640.50. Cryoprecipitated AHF.

- (a) **Proper name and definition.** The proper name of this product shall be Cryoprecipitated AHF. The product is defined as a preparation of antihemophilic factor, which is obtained from a single unit of plasma collected and processed in a closed system.
- (b) **Source.** The source material for Cryoprecipitated AHF shall be plasma which may be obtained by whole blood collection or by plasmapheresis.

## Notes

### Amendments

[42 FR 21774, Apr. 29, 1977; 48 FR 13026, Mar. 29, 1983, as amended at 50 FR 4139, Jan. 29, 1985]

### Authority

Authority: 21 U.S.C. 321, 351, 352, 353, 355, 360, 371; 42 U.S.C. 216, 262, 263, 263a, 264.

### Source

Source: 38 FR 32089, Nov. 20, 1973, unless otherwise noted.

### Amendments

[42 FR 21774, Apr. 29, 1977; 48 FR 13026, Mar. 29, 1983, as amended at 50 FR 4139, Jan. 29, 1985]