8.6　Deoxidization Water Tank

8.6.1　For installation of deoxidization water tank，its longitudinal and horizontal center lines shall be adjusted，and the measurement by plumb wire should be carried out，with the allowable deviation of 5.0mm.The elevation shall be adjusted，and the measurement by optical instrument should be carried out，with the allowable deviation of±5.0mm.The levelness shall be adjusted with the allowable deviation of 2.0mm for the overall length.

8.6.2　During the installation，the sundries in the deoxidization water tank shall be removed to keep inside clean.

8.6.3　During the installation，the deoxidization water tank shall be subject to a hydrostatic test according to the requirement of the design technical document，during of which the pressure shall be slowly boostered or lowered.