8/19/2019 570 Calculator
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API 570
Page 1
Dates of Inspections (Convert months to decimals)Initial LT Time
rame 0Previo!sLast "T Time rame 0
LI#$ "I%$ ote' "et T min to !se in cal!lation on ne t ta*
C+,,+"I+# ,AT$ L+#- T$,. / C+,,+"I+# ,AT$ " +,T T$,. /
time *et een last and initial inspections time *et een last and
previo!s inspections2 2
0time (3rs) 0 time / 0
L4T4 rate "4T4 rate
,$.AI#I#- LI $ L+#- T$,. / ,$.AI#I#- LI $ " +,T T$,. /t act!al t
minim!m t act!al t minim!mcorrosion rate (C,) corrosion rate
(C,)
0 2 0 204000 04000
LTC,/ "TC,/
LT Remaining life (yrs) ST Remaining life (yrs)
#e ,etirement #e ,etirement
T3pe of Circ!it e t Inspection Interva#e t InspectionClass
IClass IIClass IIIClass I +PTI+#AL +PTI+#AL
In6ection Point
5.1.1 REMAINING LIFE CALCULATIONS ER A I 5!" ( ased on 8+P
retirement th9)
t initial - t last t previous - t last
t initial = t prev4 =t last = t last =
t actual = t actual =t minimum t minimum
