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ASTM D5191-13
Standard Test Method for Vapor Pressure of Petroleum Products (Mini Method)
Automaticky přeložený název:
Standardní zkušební metoda pro tlak par ropných produktů (Mini Method)
NORMA vydána dne 1.12.2013
Informace o normě:
Označení normy: ASTM D5191-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.12.2013
Kód zboží: NS-30208
Počet stran: 9
Přibližná hmotnost: 27 g (0.06 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D5191-13 :
Keywords:
dry vapor pressure, gasoline, hydrocarbon-oxygenate blends, mini method, petroleum products, vapor pressure, ICS Number Code 75.080 (Petroleum products in general)
Doplňující informace
| Significance and Use | ||||||||||||||||||
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5.1 Vapor pressure is a very important physical property of volatile liquids. 5.2 The vapor pressure of gasoline and gasoline-oxygenate blends is regulated by various government agencies. 5.3 Specifications for volatile petroleum products generally include vapor pressure limits to ensure products of suitable volatility performance. 5.4 This test method is more precise than Test Method D4953, uses a small sample size (1 mL to 10 mL), and requires about 7 min to complete the test. |
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| 1. Scope | ||||||||||||||||||
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1.1 This test method covers the use of automated vapor pressure instruments to determine the total vapor pressure exerted in vacuum by air-containing, volatile, liquid petroleum products, including automotive spark-ignition fuels with or without oxygenates (see Note 1). This test method is suitable for testing samples with boiling points above 0 °C (32 °F) that exert a vapor pressure between 7 kPa and 130 kPa (1.0 psi and 18.6 psi) at 37.8 °C (100 °F) at a vapor-to-liquid ratio of 4:1. Measurements are made on liquid sample sizes in the range from 1 mL to 10 mL. No account is made for dissolved water in the sample. 1.1.1 Some gasoline-oxygenate blends
may show a haze when cooled to 0 °C to 1 °C. If a haze is observed
in 1.2 This test method is suitable for
calculation of the dry vapor pressure equivalent (DVPE) of gasoline
and gasoline-oxygenate blends by means of a correlation equation
(see Eq 1 in 1.3 The values stated in SI units
are regarded as standard. The inch-pound units given in parentheses
are provided for information only.
1.4 WARNING—Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s website – http://www.epa.gov/mercury/faq.htm - for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. 1.5 This standard does not
purport to address all of the safety concerns, if any, associated
with its use. It is the responsibility of the user of this standard
to establish appropriate safety and health practices and determine
the applicability of regulatory limitations prior to use.
Standard Test Method for Determination of
Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and
Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method) Standard Practice for Preparing
Volumetric Blends of Denatured Fuel Ethanol and Gasoline
Blendstocks for Laboratory Analysis Standard Test Method for Distillation of
Crude Petroleum (15-Theoretical Plate Column) Test Method for Determination of the Air
Saturated Vapour Pressure (ASVP) of Crude Oil Available from the
Energy Institute, 61 New Cavendish St., London, WIG 7AR, U.K. Standard Practice for Manual Sampling of
Petroleum and Petroleum Products Standard Test Method for Vapor Pressure
of Gasoline and Gasoline-Oxygenate Blends (Dry Method) Standard Specification for Ethanol Fuel
Blends for Flexible-Fuel Automotive Spark-Ignition Engines Standard Practice for Applying
Statistical Quality Assurance and Control Charting Techniques to
Evaluate Analytical Measurement System Performance (Includes all
amendments and changes 12/12/2023). Standard Test Method for Determination of
Vapor Pressure of Crude Oil: VPCRx (Expansion Method) |
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