2009DL/T 543-2009 Guideline for the acceptance of water treatment equipment used in power plant
1994DL 543-1994 Quality Inspection Standard for Water Treatment Equipment Used in Powerplant
DL 543-1994 Quality Inspection Standard for Water Treatment Equipment Used in Powerplant was changed to DL/T 543-2009 Guideline for the acceptance of water treatment equipment used in power plant .