---
kind: "section"
citation: "21 C.F.R. § 882.1925"
title: "21"
number: "882.1925"
heading: "Ultrasonic scanner calibration test block."
url: "https://uscodex.org/cfr/21/882.1925"
---

# §882.1925. Ultrasonic scanner calibration test block.

- (a) **Identification.** An ultrasonic scanner calibration test block is a block of material with known properties used to calibrate ultrasonic scanning devices (e.g., the echoencephalograph).
- (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 [§ 882.9](/cfr/21/882.9.md).

## Notes

### Amendments

[44 FR 51730, Sept. 4, 1979, as amended at 59 FR 63011, Dec. 7, 1994; 66 FR 38807, July 25, 2001]

### Authority

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

### Source

Source: 44 FR 51730, Sept. 4, 1979, unless otherwise noted.

### Amendments

[44 FR 51730, Sept. 4, 1979, as amended at 59 FR 63011, Dec. 7, 1994; 66 FR 38807, July 25, 2001]