The ASTM D86 test provides a distribution of normal boiling points (Tb) on the commutative volume fraction distilled.
Here is some data for the distillation a petroleum naphtha cut
Feed (lv %)
GC
D-86
Diff
-Isobutane
0
0
0.00
-N-Butane
0
0
0.00
-Pentanes
0.46
0.00
0.46
-C6 Paraffins
11.48
8.04
3.45
-C7 Paraffins
23.57
26.51
-2.95
-C8 Paraffins
25.65
30.23
-4.59
-C9 Paraffins
10.73
7.45
3.28
-C10 Paraffins
0.32
0.44
-0.12
-C11+ Paraffins
0.00
0.00
0.00
-MCP
1.51
0.68
0.83
-C6 Naphthenes
1.58
1.58
0.00
-C7 Naphthenes
6.20
6.44
-0.24
-C8 Naphthenes
5.70
6.31
-0.62
-C9 Naphthenes
1.50
1.16
0.34
-C10 Naphthenes
0.00
0.04
-0.04
-C11+ Naphthenes
0.00
0.00
0.00
-Benzene
0.63
1.52
-0.89
-Toluene
4.12
4.40
-0.27
-C8 Aromatics
5.96
4.35
1.60
-C9 Aromatics
0.60
0.82
-0.22
-C10 Aromatics
0.00
0.03
-0.03
-C11+ Aromatics
0.00
0.00
0.00
-Total Paraffins
72.21
72.67
-0.47
-Total Naphthenes
16.48
16.21
0.28
-Total Aromatics
11.31
11.12
0.19
-Total
100
100
0
D-86
Def C
Deg F
-00%
80.0
176.0
-10%
96.0
204.8
-30%
103.0
217.4
-50%
110.5
230.9
-70%
119.5
247.1
-90%
131.0
267.8
-99%
148.5
299.3
One of the most important parameters that characterize the volatility of an automotive gasoline is the fractional composition for a motor gasoline.43 There are three different sections on the ASTM distillation curve at different distillation temperatures, i.e., a distillation temperature of 10% characterizes the starting characteristics of a motor gasoline and its ability to form steam plugs; a distillation temperature of 50% characterizes the speed of engine warming-up, the stability of its operation at low speeds, and throttle response; and a distillation temperature of 90% and the end of boiling characterizes the presence of heavy fractions in automotive gasoline that do not have time to evaporate.
for crude oil analysis, typically a True Boiling Point distillation (TBP) is performed for evaluating the potential in yield of different fractions (i.e. LPG, naphtha, Kerosene, Diesel, VGO, VR).
For petroleum fractions (Naptha, Kerosene, Diesel) ASTM D86 distillation method and for heavier fractions ASTM D1160 distillation method is carried out for analysis. A typical Naptha cut (of Arab Mix crude) ASTM D86 data is provided below:
ASTM D 86 Data
LV%
1( IBP) - 48 C
5% - 59 C
10%- 62 C
30%- 83 C
50%- 101.5 C
70%- 118.5 C
90%- 140 C
95%- 148 C
EP- 162 C
Here is the TBP (15/5) distillation procedure. It is not usually used on naphtha
https://www.astm.org/Standards/D2892.htm. A"Sim-Dist" D2887 or a D-86 (which can be converted to estimate TBP) is typically used instead.
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