In view of urgent requirements for decommissioning of existing nuclear facilities, the current Standard (Interim) is formulated in accordance with internationally recommended principle, method and some examples. In calculation, it combines the Chinese dietary and some practical parameter based on national conditions. At the same time, in internal radiation dose conversion factor, it adopts the recently recommended value by international communities for the convenience of looking up the assumptions and conditions induced by the current Regulation when necessary. Annex A lists relevant calculation mode and parameters. The current Standard is issued for the first time and implemented as of December 1, 2000.
