GB 15146.1-2008Nuclear criticality safety for fissile materials outside reactors - Part 1: Administrative practices for nuclear criticality safety (English PDF)

Foreword

All technical content in this section is mandatory. GB 15146 "Nuclear criticality safety for fissile materials outside reactor" has so far released the following 11 sections.

--- GB 15146.1 Part 1. Nuclear Criticality Safety Administration regulations (instead of GB 15146.1-1994)

--- GB 15146.2 - Part 2. Operation fissile material, processing and handling of basic technical rules and subcritical limits (instead of GB 15146.2-1994)

--- GB 15146.3 Part 3. storage of fissile material for nuclear criticality safety requirements (instead of GB 15146.3-1994)

--- Aqueous solutions of fissile material for nuclear criticality safety criteria for steel - pipe intersections containing GB 15146.4

--- GB 15146.5 plutonium - nuclear criticality safety control criteria of natural uranium mixtures and subcritical limits

--- GB/T 15146.6 borosilicate glass Raschig rings and its application criteria

--- GB 15146.7 subcritical neutron multiplication measurements in situ

--- GB 15146.8 Part 8. heap outside the handling, storage and transport of nuclear criticality safety criteria for LWR fuel (instead of GB 15146.8-1994)

--- GB 15146.9 performance and testing requirements for nuclear criticality detection and alarm systems

--- GB 15146.10 Safety requirements for fixed neutron absorber

--- GB/T 15146.11 based nuclear criticality safety limits and controls moderator GB 15146 fissile materials outside the reactor operation, processing, handling, storage and transport of nuclear criticality safety requirements and recommendations made. This section GB Part of 115,146. This Part replaces GB 15146.1-1994 "for fissile materials outside reactor - Nuclear criticality safety for nuclear criticality safety administration regulations." The revision focuses on the introduction of quality assurance system, but the vast majority of editorial changes. In this edition, with the auxiliary verb "shall" indicates a mandatory requirement, "should" indicates recommendations; and the auxiliary verb "can" represented by the previous version of the same, Not requested nor suggested that only a license. This part of the National Standardization Technical Committee proposed nuclear energy. This part of the National Standardization Technical Committee centralized nuclear energy. This section drafted by: China Corporation, Ministry of Environmental Protection of Nuclear and Radiation Safety Center, China Institute of Physics Engineering. The main drafters of this section. Liu River, Wu Dejiang, Liukai Wu. This section was first released in 1994. Nuclear criticality safety for fissile materials outside reactors Part 1. Nuclear Criticality Safety Administration regulations

1 Scope

Part 1 of GB 15146 is the management side of criticality safety: who is responsible, how evaluations are made and approved, what operating procedures must contain, how operations are inspected, how staff are trained, how fissile material is accounted for and controlled, and what must be prepared in advance for a criticality accident. It applies wherever fissile material is handled outside a reactor - fuel fabrication, reprocessing, storage and transport - and it is the part that the rest of the series operates within. Issued on 19 September 2008, in force since 1 August 2009, replacing GB 15146.1-1994. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the edition it replaces are taken from there. The clause text, the tables and the numeric limits are not reproduced on this page - they are in the document itself, which is delivered in full in English translation.

This section provides the basic requirements for fissile materials outside reactor processing, handling, operation, storage of nuclear criticality safety administration. This section applies to reactors for fissile materials outside the processing, handling, operation, storage of nuclear criticality safety administration. This section does not apply to the assembly under controlled conditions fissile material (such as sub-critical and critical experiments under controlled conditions) Nuclear criticality safety Administration.

2 Terms and definitions

The following terms and definitions apply to this standard.

2.1 Approved by national authorities and (or) nuclear safety supervision department, responsible for the operation, management and legal entities running nuclear facilities.

2.2 Contract or mission statement mode by nuclear facility operators or national authorities units, nuclear safety supervision departments commissioned to undertake the business units Legal entities and certain aspects of nuclear facilities task.

3 General

3.1 Nuclear criticality safety administration should follow safety first, prevention-oriented approach, pipe production must adhere to strict requirements of safety and tubes in principle.

3.2 Nuclear Criticality Safety Administration should be incorporated into the overall security management system, follow the general safety regulations, standards and systems, and should When the adaptation of nuclear criticality safety expertise and highly technical features.

3.3 should establish and improve nuclear criticality safety responsibility, clearly defined the relevant departments, units and individuals nuclear criticality safety responsibilities. Should make Each staff member (regardless of rank) are aware that nuclear criticality safety for my work area is their own responsibility.

3.4 processing, handling, operation, storage of fissile material nuclear facilities operating units should be at least equipped with a full-time or part-time nuclear criticality safety Critical security professionals the whole work. These professionals should be equipped with general in the security management functions of the operating organization, they have the right to Comments and suggestions directly to the leadership.

3.5 units operate nuclear installations Nuclear Criticality Safety may establish technical advisory bodies.

4 Nuclear criticality safety responsibility

Responsibility for security of nuclear facilities

5 Nuclear Criticality Safety Evaluation

5.1 Before the start of a new operation involving fissile material or changes to existing operations, particularly in the design of new processes or change existing There are certain process conditions, equipment before, should nuclear criticality safety analysis and evaluation, to confirm the whole operation process or the entire process stream Cheng under normal conditions and credible abnormal conditions are safe in the subcritical state.

5.2 Nuclear criticality safety evaluation should clearly determine and define nuclear criticality safety depends controlled parameters and their limits. It should be understood that these parameters Or a number of changes in the conditions of use of the impact.

5.3 Nuclear criticality safety evaluation should use detailed, clear and sufficient information to prepare a technical paper to be able to independently analyze separately sentenced Off the results of the evaluation.

5.4 Before starting the practical operation, the conditions should have been verified with the previous nuclear criticality safety analysis is based on the conditions are consistent with the verification Nuclear criticality safety analysis is appropriate.

5.5 In the new, expanded the presence of nuclear criticality safety issues remodeling nuclear facilities, design and safety analysis report documents these facilities should pack Including nuclear criticality safety of the contents.

6 Run rules

Any operation involving

6.1 operating nuclear criticality safety shall be conducted according to the provisions of the written operation procedures. These procedures should include nuclear Critical safety-critical controlled parameters and their limits and to guarantee a single, occasional deviation will not lead to a nuclear criticality accident. When necessary, this These procedures should also be checked by the operating table, operation flowchart or automated inventory control system limits be added.

6.2 The current rules should be run periodically by the person in charge of operation of nuclear facilities or nuclear facilities operation and management departments for review. This These activities should be reviewed by the familiar nuclear criticality safety knowledge and as far as possible in conjunction with the implementation and operation of an operator not directly related to personnel. for Long-term outage of facilities or job number, should determine the content and frequency of review based on the process conditions after the outage, the inspection should be recorded and save.

6.3 New and existing operation procedures of review and the review should participate in nuclear criticality safety professionals. Nuclear criticality safety checks 7 OPERATION

7.1 Running The operator shall be responsible for nuclear criticality safety of the operation of the operation always check to ascertain whether the compliance procedures run Keep the process conditions affect the existence of nuclear criticality safety changes.

7.2 Any violation of operation rules that affect nuclear criticality safety of a violation, and unexpectedly affect nuclear criticality safety conditions Changes should be recorded in detail, and in charge of the security operation management function reports to take prompt measures to prevent a recurrence of nuclear facilities.

7.3 operation of nuclear facilities operation and management of the competent person or organization departments should run nuclear criticality safety operations for regular or occasional round This check should participate in nuclear criticality safety professionals.

8 training and education

Nuclear facilities operating organization should establish and improve fissile material for operators, nuclear criticality safety professionals and managers concerned Nuclear criticality safety training and assessment system, regularly or irregularly actual nuclear criticality safety training and retraining.

9 fissile materials management

9.1 Transfer of fissile material should be controlled in accordance with written procedures. There should be someone responsible for fissile material inventory and statistics Meter track the distribution of fissile material accumulation and metastasis.

9.2 storage of fissile material should have a label material, storage place should be added signs. Labels and signs should indicate the type of fissile material All controlled parameters and limits. It should ensure that the labeling, signage is correct.

9.3 should carry out controls on the processing, treatment, handling and storage area of fissile material.

9.4 pairs in long-term memory is idle and characteristics of fissile material may change occurs on a device, in particular, need attention. 10 nuclear criticality accident emergency response preparation