---
kind: "section"
citation: "10 C.F.R. § 35.2204"
title: "10"
number: "35.2204"
heading: "Records of molybdenum-99, strontium-82, and strontium-85 concentrations."
url: "https://uscodex.org/cfr/10/35.2204"
---

# §35.2204. Records of molybdenum-99, strontium-82, and strontium-85 concentrations.


A licensee shall maintain a record of the molybdenum-99 concentration or strontium-82 and strontium-85 concentration tests required by § [35.204(b)](/cfr/10/35.204.md?p=b) and [(c)](/cfr/10/35.204.md?p=c) for 3 years. The record must include:

- (a) For each measured elution of technetium-99m, the ratio of the measures expressed as kilobecquerel of molybdenum-99 per megabecquerel of technetium-99m (or microcuries of molybdenum per millicurie of technetium), the time and date of the measurement, and the name of the individual who made the measurement; or
- (b) For each measured elution of rubidium-82, the ratio of the measures expressed as kilobecquerel of strontium-82 per megabecquerel of rubidium-82 (or microcuries of strontium-82 per millicurie of rubidium), kilobecquerel of strontium-85 per megabecquerel of rubidium-82 (or microcuries of strontium-85 per millicurie of rubidium), the time and date of the measurement, and the name of the individual who made the measurement.

## Notes

### Amendments

[72 FR 55932, Oct. 1, 2007]

### Authority

Authority: Atomic Energy Act of 1954, secs. 81, 161, 181, 182, 183, 223, 234, 274 (42 U.S.C. 2111, 2201, 2231, 2232, 2233, 2273, 2282, 2021); Energy Reorganization Act of 1974, secs. 201, 206 (42 U.S.C. 5841, 5846); 44 U.S.C. 3504 note.

### Source

Source: 67 FR 20370, Apr. 24, 2002, unless otherwise noted.

### Amendments

[72 FR 55932, Oct. 1, 2007]