Thank you for responding.
And to conclusion,
In your opinion, If tank is repaired by any reason (Bottom Patching, Accessory Replacement, etc), API653 1/100 & 5inch. criteria for plumbness should be applied ??
In API 653, plumbness criteria is "not exceeding 1/100 of tank height, with max of 5 inch." in 10.5.2
I think that criteria is for reconstructed tank case. Because that criteria in under "Section 10. Dismantling and Reconstruction". And 10.5.1 said "The tolerances given in this section have...