Considers the HYDROTEST case in a corroded condition for API-653 runs only. The default condition is not to corrode the TEST case, which is consistent with API-650. However, you may want to specify that API-653 tanks consider a future hydrotest by assuming a corroded TEST case.
If you select this check box, TANK includes the corrosion allowance that you specify in the TEST case.
If you clear this check box, TANK does not consider a corrosion allowance for the TEST case. This setting is consistent with API-650, and is the default setting.