ASTM D1265-11
ASTM D1267-12
ASTM D1826-94(2010)..
ASTM D1835-13
ASTM D1837-11
ASTM D1946-90(2011)..
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ASTM D2598-12
Standard Practice for Calculation of Certain Physical Properties of Liquefied Petroleum (LP) Gases from Compositional Analysis
Automaticky přeložený název:
Standardní praktiky pro výpočet některých fyzikálních vlastnostech zkapalněných ropných (LP) Plyny z analýzy složení
NORMA vydána dne 1.11.2012
Informace o normě:
Označení normy: ASTM D2598-12
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2012
Kód zboží: NS-20871
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D2598-12 :
Keywords:
butane, calculated physical properties, liquefied petroleum gases, motor octane number, propane, relative density, vapor pressure, ICS Number Code 75.160.30 (Gaseous fuels)
Doplňující informace
| Significance and Use | |||
|
4.1 Vapor pressure is an important specification property of commercial propane, special duty propane, propane/butane mixtures, and commercial butane that assures adequate vaporization, safety, and compatibility with commercial appliances. Relative density, while not a specification criterion, is necessary for determination of filling densities and custody transfer. The motor octane number (MON) is useful in determining the products' suitability as a fuel for internal combustion engines. |
|||
| 1. Scope | |||
|
1.1 This practice covers, by compositional analysis, the approximate determination of the following physical characteristics of commercial propane, special-duty propane, commercial propane/butane mixtures, and commercial butane (covered by Specification D1835): vapor pressure, relative density, and motor octane number (MON). 1.1.1 This practice is not applicable to any product exceeding specifications for nonvolatile residues. (See Test Method D2158.) 1.1.2 For calculating motor octane number, this practice is applicable only to mixtures containing 20 % or less of propene. 1.1.3 For calculated motor octane number, this practice is based on mixtures containing only components shown in Component |
Vapor Pressure Blend Factor, kPa-gage |
Relative Density at 15.6°C (60°F) |
MON Blend Value |
|
Methane |
17547 (2545) |
0.3 |
. . . |
|
Ethane |
4213 (611) |
0.3563 |
100.7 |
|
Ethene (Ethylene) |
8720 (1265) |
0.37 |
75.6 |
|
Propane |
1200 (174) |
0.5072 |
97.1 |
|
Propene (Propylene) |
1466 (213) |
0.5226 |
84.9 |
|
Methylpropane (Isobutane) |
400 (58) |
0.5629 |
97.6 |
|
n-Butane |
255 (37) |
0.5842 |
89.6 |
|
t-2-Butene |
242 (35) |
0.6099 |
… |
|
1-Butene |
328 (48) |
0.6004 |
80.8 |
|
2-Methylpropene (Isobutylene) |
340 (49) |
0.6004 |
… |
|
c-2-Butene |
216 (31) |
0.6275 |
83.5 |
|
2,2-Dimethylpropane (Neopentane) |
152 (22) |
0.5961 |
80.2 |
|
Cyclopentane |
-33 (-4.7) |
0.7503 |
84.9 |
|
2-Methylbutane (Isopentane) |
40 (5.8) |
0.6251 |
90.3 |
|
n-Pentane |
6.4 (0.9) |
0.6307 |
62.6 |
|
n-Hexane |
-67 (-9.7) |
0.6641 |
26.0 |
1.2 The values stated in SI units
are to be regarded as standard. The values given in parentheses are
for information only.
1.2.1 Exception—Motor octane number and relative density are given in MON numbers and dimensionless units, respectively.
|
Standard Test Method for Gauge Vapor Pressure of Liquefied Petroleum (LP) Gases (LP-Gas Method) |
|
|
Standard Test Method for Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer (Includes all amendments and changes 3/14/2023). |
|
|
Standard Specification for Liquefied Petroleum (LP) Gases |
|
|
Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography (Includes all amendments and changes 4/27/2023). |
|
|
Standard Practice for Interconversion of Analysis of C5 and Lighter Hydrocarbons to Gas-Volume, Liquid-Volume, or Mass Basis (Includes all amendments and changes 6/16/2021). |
|
|
GPSA Engineering Data Book, 12th Edition, 2004 |
|
|
Standard Test Method for Residues in Liquefied Petroleum (LP) Gases |
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