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

RISK-BASED INSPECTION METHODOLOGY, PART 3, ANNEX 3.B—SI AND U.S. CUSTOMARY CONVERSION FACTORS 3.B-3
Table 3.B.2.1—SI and U.S. Customary Conversion Factors for Equations in Part 3
Conversion
Factor
C
16
C
17
Equation
Reference
(3.113),
(3.114),
(3.116),
(3.117)
SI Units
(3.128),
kg
0.001
2
(3.129) m ⋅ sec
U.S. Customary Units
294.44 K 530 o R
2.048 x 10
−4
lb
2
ft ⋅ sec
C
18
(3.132) 0.0050 m 0.0164 ft
C
19
(3.140)
1.085 (kPa ⋅ m)
0.092
1.015 (psia ⋅ ft)
0.092
C
20
(3.141) 1.013 kPa 0.147 psia
C
21
(3.141) 5,328 K 9,590 o R
m
C
22
(3.158) 5.8
0.333
kg
C
23
(3.160) 0.45 sec
0.333
kg
C
24
(3.161) 2.6 sec
0.167
kg
ft
14.62
lb
0.333
0.346 sec
0.333
lb
2.279 sec
0.167
lb
1
1
C
25
(3.163) 0.0296 0.0549 kPa
0.32
psia
0.32
C
26
(3.170) 100 kPa
bar
14.5 psi
bar
C
27
(3.171)
C
28
(3.172)
C
29
(3.192)
1 kg
1
3
m⋅
s
1
3
lbm
0.3967
ft ⋅ s
1
1
1,000 6,895
kPa psia
4.303 x 10 sec
m
2
− 4
−4
2
1
3
lbm
1.85 x 10
psi ⋅ ft
3
C
30
(3.195)
7
2.150 x 10 kg −
J
6.43 x 10
−7 1
lb
f
⋅ ft
C
31
(5.35) 864 sec ⋅ m
cm ⋅ day
sec ⋅ ft
7,200
inch ⋅ day