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

RISK-BASED INSPECTION METHODOLOGY, PART 3—CONSEQUENCE OF FAILURE METHODOLOGY 3-47
Table 4.2—Properties of the Representative Fluids Used in Level 1 Consequence Analysis
Fluid
MW
Liquid
Density
(lb/ft 3 )
NBP
(°F)
Ambient
State
Ideal Gas
Specific
Heat Eq.
Ideal Gas
Constant
A
Ideal Gas
Constant
B
Cp
Ideal Gas
Constant
C
Ideal Gas
Constant
D
Ideal Gas
Constant
E
AIT
(°F)
C 1 -C 2 23 15.639 −193 Gas Note 1 12.3 1.150E-01 −2.87E-05 −1.30E-09 N/A 1036
C 3 -C 4 51 33.61 −6.3 Gas Note 1 2.632 0.3188 −1.347E-04 1.466E-08 N/A 696
C 5 72 39.03 97 Liquid Note 1 −3.626 0.4873 −2.6E-04 5.3E-08 N/A 544
C 6 -C 8 100 42.702 210 Liquid Note 1 −5.146 6.762E-01 −3.65E-04 7.658E-08 N/A 433
C 9 -C 12 149 45.823 364 Liquid Note 1 −8.5 1.01E+00 −5.56E-04 1.180E-07 N/A 406
C 13 -C 16 205 47.728 502 Liquid Note 1 −11.7 1.39E+00 −7.72E-04 1.670E-07 N/A 396
C 17 -C 25 280 48.383 651 Liquid Note 1 −22.4 1.94E+00 −1.12E-03 −2.53E-07 N/A 396
C 25+ 422 56.187 981 Liquid Note 1 −22.4 1.94E+00 −1.12E-03 −2.53E-07 N/A 396
Pyrophoric 149 45.823 364 Liquid Note 1 −8.5 1.01E+00 −5.56E-04 1.180E-07 N/A Note 4
Aromatic 104 42.7 293 Liquid Note 2 8.93E+04 2.15E+05 7.72E+02 9.99E+04 2.44E+03 914
Styrene 104 42.7 293 Liquid Note 2 8.93E+04 2.15E+05 7.72E+02 9.99E+04 2.44E+03 914
Water 18 62.3 212 Liquid Note 3 2.76E+05 −2.09E+03 8.125 −1.41E-02 9.37E-06 N/A
Steam 18 62.3 212 Gas Note 2 3.34E+04 2.68E+04 2.61e+03 8.90E+03 1.17E+03 N/A
Acid/Caustic-
LP
Acid/Caustic-
MP
Acid/Caustic-
HP
18 62.3 212 Liquid Note 2 2.76E+05 −2.09E+03 8.125 −1.41E-02 9.37E-06 N/A
18 62.3 212 Liquid Note 2 2.76E+05 −2.09E+03 8.125 −1.41E-02 9.37E-06 N/A
18 62.3 212 Liquid Note 2 2.76E+05 −2.09E+03 8.125 −1.41E-02 9.37E-06 N/A
Methanol 32 50 149 Liquid Note 2 3.93E+04 8.79E+04 1.92E+03 5.37E+04 8.97E+02 867
Ammonia 17.03 38.55 −28.2 Gas — — — — — — N/A
H 2 2 4.433 −423 Gas Note 1 27.1 9.270E-03 −1.38E-05 7.650E-09 N/A 752
H 2 S 34 61.993 −75 Gas Note 1 31.9 1.440E-03 2.430E-05 −1.18E-08 N/A 500
HF 20 60.37 68 Gas Note 1 29.1 6.610E-04 −2.03E-06 2.500E-09 N/A 32000
HCl 36 74 −121 Gas — — — — — — N/A
CO 28 50 −312 Gas Note 2 2.91E+04 8.77E+03 3.09E+03 8.46E+03 1.54E+03 1128
DEE 74 45 95 Liquid Note 2 8.62E+04 2.55E+05 1.54E+03 1.44E+05 −6.89E+02 320
Nitric acid 63 95 250 Liquid — — — — — — N/A
AlCl 3 133.5 152 382 Powder Note 1 4.34E+04 3.97E+04 4.17E+02 2.40E+04 N/A 1036
NO 2 90 58 275 Liquid — — — — — — N/A
Phosgene 99 86 181 Liquid — — — — — — N/A
TDI 174 76 484 Liquid — — — — — — 1148
PO 58 52 93 Liquid Note 2 4.95E+04 1.74E+05 1.56E+03 1.15E+05 7.02E+02 840