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

3-70 API RECOMMENDED PRACTICE 581
Table 4.18M—Fluid Leak Properties
Fluid
MW
Density
(kg/m 3 )
NBP
(°C)
Fraction Evaporated in 24 Hours a
fract
evap
C1-C2 23 250.513 −125 1.00
C3-C5 58 580.012 −1 1.00
C6-C8 100 684.020 99 0.90
C9-C12 149 734.014 184 0.50
C13-C16 205 764.529 261 0.10
C17-C25 280 775.021 344 0.05
C25+ 422 900.029 527 0.02
Acid 18 997.950 100 0.90
H2 2 71.010 −253 1.00
H2S 34 993.032 −59 1.00
HF 20 967.034 20 1.00
CO 28 800.923 −191 1.00
DEE 74 720.831 35 1.00
HCL 36 1185.366 −85 1.00
Nitric acid 63 1521.754 121 0.80
NO2 90 929.071 135 0.75
Phosgene 99 1377.588 83 1.00
TDI 174 1217.403 251 0.15
Methanol 32 800.923 65 1.00
PO 58 832.960 34 1.00
Styrene 104 683.988 145 0.60
EEA 132 977.126 156 0.65
EE 90 929.071 135 0.75
EG 62 1105.274 197 0.45
EO 44 881.015 0 1.00
a
Estimated values.