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

3.B-4 API RECOMMENDED PRACTICE 581
Table 3.B.2.1—SI and U.S. Customary Conversion Factors for Equations in Part 3
Conversion
Factor
Equation
Reference
SI Units
sec ⋅bbl
C
32
(5.5) 0.543
2
day ⋅mm
⋅m
U.S. Customary Units
sec ⋅bbl
106.8
2
day ⋅inch
⋅ ft
sec ⋅bbl
C
33
(5.37) 0.0815
2
day ⋅mm
⋅m
sec ⋅bbl
16.03
2
day ⋅inch
⋅
ft
m
C
34
(5.37) 86.4
2
day ⋅ mm
bbl
C
35
(5.38) 29.6195
0.26 0.2 1.64
day ⋅mm ⋅m
1.829 x 10
5
ft
day ⋅inch
bbl
8.0592
day ⋅inch ⋅ ft
0.26 0.2 1.64
2
C
36
(5.53) 30.5 m 100 ft
C
37
(5.38)
1.408 x 10
−8
1.4
m
day ⋅ mm
1.8
6.995 x 10
−5
1.4
ft
day ⋅inch
1.8
C
38
(5.39) 1.1341 403.95
C (5.39) 3.9365 7.2622
39
C (5.39) 5.9352 5.0489
40
C
41
(3.90) 32 o C
0 o F