21 CFR § 640.22 - Collection of source material.
---
identifier: "/us/cfr/t21/s640.22"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 640.22 - Collection of source material."
title_number: 21
title_name: "Food and Drugs"
section_number: "640.22"
section_name: "Collection of source material."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "F"
subchapter_name: "BIOLOGICS"
part_number: "640"
part_name: "ADDITIONAL STANDARDS FOR HUMAN BLOOD AND BLOOD PRODUCTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 351, 352, 353, 355, 360, 371; 42 U.S.C. 216, 262, 263, 263a, 264."
regulatory_source: "38 FR 32089, Nov. 20, 1973, unless otherwise noted."
cfr_part: "640"
---
# 640.22 Collection of source material.
(a) Whole blood used as the source of Platelets shall be collected as prescribed in § 640.4.
(b) [Reserved]
(c) If plateletpheresis is used, the procedure for collection must be as prescribed in §§ 640.21, 640.64 (except paragraph (c)), and 640.65, or as described in an approved biologics license application (BLA) or an approved supplement to a BLA.
(d) The phlebotomy shall be performed by a single uninterrupted venipuncture with minimal damage to, and minimal manipulation of, the donor's tissue.
[40 FR 4304, Jan. 29, 1975, as amended at 45 FR 27927, Apr. 25, 1980; 49 FR 23834, June 8, 1984; 50 FR 4139, Jan. 29, 1985; 55 FR 11013, Mar. 26, 1990; 59 FR 49351, Sept. 28, 1994; 64 FR 45372, Aug. 19, 1999; 64 FR 56453, Oct. 20, 1999; 72 FR 45887, Aug. 16, 2007; 80 FR 29904, May 22, 2015]