10 CFR 71.51 - Additional requirements for Type B packages.

§ 71.51 Additional requirements for Type B packages.
(a) A Type B package, in addition to satisfying the requirements of §§ 71.41 through 71.47, must be designed, constructed, and prepared for shipment so that under the tests specified in:
(1) Section 71.71 (“Normal conditions of transport”), there would be no loss or dispersal of radioactive contents—as demonstrated to a sensitivity of 10−6 A2 per hour, no significant increase in external surface radiation levels, and no substantial reduction in the effectiveness of the packaging; and
(2) Section 71.73 (“Hypothetical accident conditions”), there would be no escape of krypton-85 exceeding 10 A2 in 1 week, no escape of other radioactive material exceeding a total amount A2 in 1 week, and no external radiation dose rate exceeding 10 mSv/h (1 rem/h) at 1 m (40 in) from the external surface of the package.
(b) Where mixtures of different radionuclides are present, the provisions of appendix A, paragraph IV of this part shall apply, except that for Krypton-85, an effective A2 value equal to 10 A2 may be used.
(c) Compliance with the permitted activity release limits of paragraph (a) of this section may not depend on filters or on a mechanical cooling system.
(d) For packages which contain radioactive contents with activity greater than 105 A2, the requirements of § 71.61 must be met.
[60 FR 50264, Sept. 28, 1995, as amended at 69 FR 3794, Jan. 26, 2004; 69 FR 58039, Sept. 29, 2004]

Title 10 published on 2014-01-01

no entries appear in the Federal Register after this date.

Title 10 published on 2014-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR 71 after this date.

  • 2014-02-11; vol. 79 # 28 - Tuesday, February 11, 2014
    1. 79 FR 8097 - Deliberate Misconduct Rule and Hearings on Challenges to the Immediate Effectiveness of Orders
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Proposed rule.
      Submit comments by May 12, 2014. Comments received after this date will be considered if it is practical to do so. However, the NRC is able to ensure consideration only of comments received on or before this date.
      10 CFR Parts 2, 30, 40, 50, 52, 60, 61, 63, 70, 71, 72, 76, 110, and 150