10 CFR § 35.2204 - Records of molybdenum-99, strontium-82, and strontium-85 concentrations.
---identifier: "/us/cfr/t10/s35.2204"source: "ecfr"legal_status: "authoritative_unofficial"title: "10 CFR § 35.2204 - Records of molybdenum-99, strontium-82, and strontium-85 concentrations."title_number: 10title_name: "Energy"section_number: "35.2204"section_name: "Records of molybdenum-99, strontium-82, and strontium-85 concentrations."chapter_name: "NUCLEAR REGULATORY COMMISSION"part_number: "35"part_name: "MEDICAL USE OF BYPRODUCT MATERIAL"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"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."regulatory_source: "67 FR 20370, Apr. 24, 2002, unless otherwise noted."cfr_part: "35"---
Identifier
/us/cfr/t10/s35.2204
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Nuclear Regulatory Commission
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, 58... 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.
# 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) and (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.[72 FR 55932, Oct. 1, 2007]