GBZ 125-2009Radiological protection requirements for gauges containing sealed radioactive source (English PDF)

5.3.2 The radiation protection and safety acceptance test of new-purchased detection

instrument shall be carried out according to this Standard.

5.3.3 At the regular use place of detection instrument, source container shall be fixed firmly

and reliably; it shall adopt security protection measures to avoid the lost of sealed source;

PREVENT people entering into the useful beam area between source container and tested

substances.

5.3.4 The operation staffs related to the installation, inspection and maintenance of sealed

source must be familiar with the structure of source container; GRASP the skills of radiation

protection; OBTAIN the qualification certificate of radiation staff; and ACCQUIRE

authorization of operation.

5.3.5 According to GBZ 128, radiation operation staffs in supervision area; and radiation

operation staffs during the reloading of radioactive source of various instrument and the

maintenance of source related to instrument shall be subject to personal dose monitoring.

5.3.6 Decommissioned sealed source shall be managed strictly as the radioactive dangerous

articles; they shall be sent back to manufacturer or transmitted to the preservation department of

decommissioned source and be provided with permanent records.

5.3.7 "ionizing radiation warning sign" (see GB 18871) shall be set up clearly at striking

position of use-place of detection instrument's source container.

5.4 Transportation requirements

The transportation of sealed source and source container containing sealed source shall

comply with the requirements of GB 11806.

5.5 Accident emergency requirements

5.5.1 For instrument and its used sealed source, the hazard index and corresponding hazard

classification of radioactive source shall be judged according to GBZ/T 208 and according to

the contingent radiation accident risk; so as to provide basis for accident emergency preparation.

The hazard classification of major detection instruments are listed in Appendix C.

5.5.2 According to the situations of production, utilization, storage of sealed source and

instrument, and the contingent radiation accident risk, and according to the classification

requirements of radiation accident specified by the nation, corresponding radiation accident

emergency plan shall be formulated; and emergency preparation shall be well done.

Appendix B

(Informative)

Catalogue of Radiation Protection and Safety Management System

B.1 The reference catalogue of radiation protection and safety management system for the

organizations which manufacture and use the instrument with sealed source is as follows.

1) Radiation protection management organization and the responsibilities;

2) License management system for radiation source and instrument;

3) The standing book of radiation source and detection instrument, and management system for

manufacturing, utilization, storage and decommissioning;

4) The management system for radiation operational staffs;

5) Safety operation, maintenance and safety inspection system;

6) The dose-monitoring system for the device, site and staffs;

7) The emergency treatment plan for radiation accident;

8) Protection, safety evaluation and annual summarization system for radiation source and

detection instrument.

Translation References and Original Chinese

Documents

[1] GBZ 125-2009 Radiological protection requirements for gauges containing sealed

radioactive source.

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