Property | Unit | Type 2-D | Reference procedure1 |
(i) Cetane Number | 40-50 | ASTM D613 | |
(ii) Cetane Index | 40-50 | ASTM D976 | |
(iii) Distillation range: | |||
(A) IBP | 340-400 (171.1-204.4) | ||
(B) 10 pct. point | 400-460 (204.4-237.8) | ||
(C) 50 pct. point | °F ( °C) | 470-540 (243.3-282.2) | STM D86 |
(D) 90 pct. point | 560-630 (293.3-332.2) | ||
(E) EP | 610-690 (321.1-365.6) | ||
(iv) Gravity | °API | 32-37 | ASTM D4052 |
(v) Total sulfur | ppm | 7-15 | ASTM D2622 |
(vi) Hydrocarbon composition: Aromatics, minimum (Remainder shall be paraffins, naphthenes, and olefins) | pct | 27 | ASTM D5186 |
(vii) Flashpoint, min | °F ( °C) | 130 (54.4) | ASTM D93 |
(viii) Viscosity | centistokes | 2.0-3.2 | ASTM D445 |
1 ASTM procedures are incorporated by reference in § 86.1 .
Property | Unit | Type 2-D | Reference procedure1 |
(i) Cetane Number | 38-58 | ASTM D613 | |
(ii) Cetane Index, minimum | 40 | ASTM D976 | |
(iii) 90 percent distillation | °F | 540-630 | ASTM D86 |
(iv) Gravity | °API | 30-39 | ASTM D4052 |
(v) Total sulfur | Ppm | 7-15 | ASTM D2622 |
(vi) Flashpoint, minimum | °F ( °C) | 130 (54.4) | ASTM D93 |
(vii) Viscosity | centistokes | 1.5-4.5 | ASTM D445 |
1 ASTM procedures are incorporated by reference in § 86.1 .
Item | Value1 |
Methane, CH4 | Minimum, 89.0 mole percent. |
Ethane, C2H6 | Maximum, 4.5 mole percent. |
C3 and higher | Maximum, 2.3 mole percent. |
C6 and higher | Maximum, 0.2 mole percent. |
Oxygen | Maximum, 0.6 mole percent. |
Inert gases (sum of CO2 and N2) | Maximum, 4.0 mole percent. |
1 All parameters are based on the reference procedures in ASTM D1945 (incorporated by reference in § 86.1 ).
40 C.F.R. §86.113-94