API RP 581 - 3rd Ed.2016 - Add.2-2020 - Risk-Based Inspection Methodology

3-114 API RECOMMENDED PRACTICE 581
CA is the component damage consequence area for a jet fire associated with the n th release hole
jet
f , cmd , n
size, m 2 (ft 2 )
CA is the personnel injury consequence area for a jet fire associated with the n th release hole size,
jet
f , inj,
n
m 2 (ft 2 )
CA leak
f , inj,
n is the personnel injury nonflammable, nontoxic consequence area for steam or acid leaks,
associated with the n th release hole size, m 2 (ft 2 )
CA is the final probability weighted component damage consequence area for nonflammable,
nfnt
f , cmd
nontoxic releases, m 2 (ft 2 )
CA is the final probability weighted personnel injury consequence area for nonflammable, nontoxic
nfnt
f , inj
releases, m 2 (ft 2 )
CA is the personnel injury nonflammable, nontoxic consequence area, associated with the n th
nfnt
f , inj,
n
release hole size, m 2 (ft 2 )
CA is the component damage consequence area for a physical explosion associated with the
pexp
f , cmd
rupture case only, m 2 (ft 2 )
CA is the personnel injury consequence area for a physical explosion associated with the rupture
pexp
f , inj
case only, m 2 (ft 2 )
CA is the component damage consequence area for a pool fire associated with the n th release hole
pool
f , cmd , n
size, m 2 (ft 2 )
CA is the personnel injury consequence area for a pool fire associated with the n th release hole size,
pool
f , inj,
n
m 2 (ft 2 )
CA is the component damage consequence area for a safe release associated with the n th release
safe
f , cmd , n
hole size, m 2 (ft 2 )
CA is the personnel injury consequence area for a safe release associated with the n th release hole
safe
f , inj,
n
size, m 2 (ft 2 )
CA is the final overall personnel injury toxic consequence area, m 2 (ft 2 )
tox
f , inj
CA is the personnel injury toxic consequence area associated with the n th release hole size, m 2 (ft 2 )
tox
f , inj,
n
CA is the component damage consequence area for a VCE associated with the n th release hole
vce
f , cmd , n
size, m 2 (ft 2 )
CA is the personnel injury consequence area for a VCE associated with the n th release hole size,
vce
f , inj,
n
m 2 (ft 2 )
C
fb
is the distance from the center of the fireball to the target, m (ft)