§ 173.448 General transportation requirements.
发布08-07
生效09-08
摘要总结AI 辅助解读
本条款规定了美国境内第7类（放射性）材料的一般运输要求。核心内容包括：货物必须固定以防移位；在满足特定热输出或表面热通量限制且周围货物不阻碍空气流通时，可与普通包装货物混装；严禁在载客飞机客舱内运输（除指定押运员区域外）；载客飞机上单个包裹的运输指数不得超过3.0，且仅限用于科研、医疗诊断或治疗的材料；使用外包装（Overpack）时需符合特定的标记、标签及运输指数限制（客机≤3.0，货机≤10.0）。
- (a) Each shipment of Class 7 (radioactive) materials must be secured to prevent shifting during normal transportation conditions.
- (b) Except as provided in §§ 174.81, 176.83, and 177.848 of this subchapter, or as otherwise required by the Competent Authority in the applicable certificate, a package or overpack of Class 7 (radioactive) materials may be carried among packaged general cargo without special stowage provisions, if—
- (1) The heat output in watts does not exceed 0.1 times the minimum package dimension in centimeters; or
- (2) The average surface heat flux of the package or overpack does not exceed 15 watts per square meter and the immediately surrounding cargo is not in sacks or bags or otherwise in a form that would seriously impede air circulation for heat removal.
- (c) Packages or overpacks bearing labels prescribed in § 172.403 of this subchapter may not be carried in compartments occupied by passengers, except in those compartments exclusively reserved for couriers accompanying those packages.
- (d) Mixing of different kinds of packages that include fissile packages is authorized only in accordance with § 173.459.
- (e) No person shall offer for transportation or transport aboard a passenger-carrying aircraft any single package or overpack with a transport index greater than 3.0.
- (f) No person shall offer for transportation or transport aboard a passenger-carrying aircraft any Class 7 (radioactive) material unless that material is intended for use in, or incident to, research, medical diagnosis or treatment.
- (g) If an overpack is used to consolidate individual packages or to enclose a single package of Class 7 (radioactive) materials, the package(s) must comply with the packaging, marking, and labeling requirements of this subchapter, and:
- (1) The overpack must be labeled as prescribed in § 172.403(h) of this subchapter;
- (2) The overpack must be marked as prescribed in subpart D of part 172 of this subchapter and § 173.25(a); and
- (3) The transport index of the overpack may not exceed 3.0 for passenger-carrying aircraft shipments, or 10.0 for cargo-aircraft shipments.
[69 FR 3691, Jan. 26, 2004]