NB/T 20233-2013 Cleanliness and cleanliness requirements for nuclear steam supply system equipment in pressurized water reactor nuclear power plants has been changed from EJ/T 433-1989 Equipment cleaning and packaging requirements for nuclear steam supply system.
NB/T 20233-2013 Cleanliness and cleanliness requirements for nuclear steam supply system equipment in pressurized water reactor nuclear power plants has been changed from EJ/T 434-1989 Cleanliness requirements for nuclear steam supply system equipment during storage construction, installation and start-up.
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