[MW:25757] API 570 SHORT TERM CORROSIN FORMULA CHANGE FEB-2016

DEAR ALL,

REFER API 570 2009 VERSION AND API570 FEB2016 VERSION,

SHORT TERM CORROSION FORMULA IS CHANGED??

AS PER API-570 2009,

ST=       tprevios-tactual

               -------------------------

        time (years) t previous-t actual

AS PER API-570 2016,

ST=           t inital-t actual

              -----------------------------

        time (years) t previos-t actual 

pl confirm this change in equation.

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