---
kind: "section"
citation: "21 C.F.R. § 862.1255"
title: "21"
number: "862.1255"
heading: "2,3-Diphosphoglyceric acid test system."
url: "https://uscodex.org/cfr/21/862.1255"
---

# §862.1255. 2,3-Diphosphoglyceric acid test system.

- (a) **Identification.** A 2,3-diphosphoglyceric acid test system is a device intended to measure 2,3-diphosphoglyceric acid (2,3-DPG) in erythrocytes (red blood cells). Measurements of 2,3-diphosphoglyceric acid are used in the diagnosis and treatment of blood disorders that affect the delivery of oxygen by erythrocytes to tissues and in monitoring the quality of stored blood.
- (b) **Classification.** Class I (general controls). The device is exempt from the premarket notification procedures in [subpart E of part 807](/cfr/21/part807-subpartE.md) of this chapter subject to the limitations in [§ 862.9](/cfr/21/862.9.md).

## Notes

### Amendments

[52 FR 16122, May 1, 1987, as amended at 53 FR 21449, June 8, 1988; 66 FR 38787, July 25, 2001]

### Authority

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

### Source

Source: 52 FR 16122, May 1, 1987, unless otherwise noted.

### Amendments

[52 FR 16122, May 1, 1987, as amended at 53 FR 21449, June 8, 1988; 66 FR 38787, July 25, 2001]