API MPMS 11.3.3 2019 pdf download.Manual of Petroleum Measurement Standards Chapter 11.3.3 Miscellaneous Hydrocarbon Product Properties—Denatured Ethanol Density and Volume Correction Factors.
1 Scope 1.1 General This standard covers density and volume correction factors for denatured fuel ethanol. The actual standard consists of the explicit implementation procedures set forth in this document. Sample tables and other examples created from a computerized version of this implementation procedure are presented as examples only and do not represent the standard. 1.2 Limits of Application This standard is applicable at any operating temperature to bulk (e.g. tank trucks, tank cargos, barges) denatured 95 % to 99 % fuel ethanol containing D4806 allowed denaturants (natural gasoline, gasoline blend stocks, and unleaded gasoline) and denatured, 99+ % fuel ethanol containing less than 1 % denaturant. This standard does not apply to undenatured ethanol of any purity. Annex E extends the range of application to –40 to 60 °C (–40 to 140 °F) over the pressure range of 0 to 15 MPa (0 to 2200 psi). 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. API MPMS Ch. 11.1–2004, Temperature and Pressure Volume Correction Factors for Generalized Crude Oils, Refined Products, and Lubricating Oils (includes Addendum dated September 2007). API MPMS Ch. 12.1.1–2012, Calculation of Static Petroleum Quantities—Upright Cylindrical Tanks and Marine Vessels. 3 Terms and Definitions For the purposes of this document, the following definitions apply. 3.1 absolute density RHO The mass of a substance per unit of volume at a specified temperature and pressure. 3.2 alpha a A product-specific thermal coefficient of expansion used in the API MPMS Ch. 11.1 equations for VCFs (Annex A). 3.3 correction for the effect of pressure on liquid CPL Compensates for the effect of pressure on a liquid.
3.5 correction for the effect of temperature and pressure on liquid CTPL Corrects a volume at an observed temperature and pressure to an equivalent volume at a reference temperature and pressure and is equal to CTL x CPL. This combination of factors is also often referred to as a VCF. 3.6 denaturants Materials added to ethanol under a formula approved by a regulatory agency to make it unsuitable for beverage use. 3.7 denatured 95 % to 99 % fuel ethanol Fuel ethanol denatured with natural gasoline, gasoline blendstocks, or regular gasoline in accordance with US federal regulations. 3.8 denatured 99+ % fuel ethanol Fuel ethanol denatured with less than 1 % federally approved denaturants in accordance with US federal regulations. 3.9 denatured fuel ethanol Fuel ethanol made unfit for beverage use by the addition of denaturants allowed by D4806 for automotive spark- ignition engine fuel under formula(s) approved by the applicable regulatory agency to prevent the imposition of beverage alcohol tax. 3.10 ethanol Ethyl alcohol, the chemical C 2 H 5 OH. 3.11 fuel ethanol A grade of undenatured ethanol with other components common to its production (including small amounts of water) that do not affect the use of the product as a component for automotive spark ignition engine fuels. 3.12 gasoline A volatile mixture of liquid hydrocarbons, generally containing small amounts of additives, suitable for use as a fuel in spark-ignition internal combustion engines. 3.13 gross observed volume GOV The total volume of all petroleum or chemical liquids and sediment and water, excluding free water, at observed temperature and pressure. 3.14 gross standard volume GSV The GOV gross observed volume corrected by the appropriate factors from the observed temperature and pressure to the specified reference conditions.
3.15 gross volume GV The actual volume at flowing temperature and pressure. 3.16 natural gasoline A natural gas liquid with a vapor pressure intermediate between condensate and liquefied petroleum gas. This liquid hydrocarbon mixture is recovered at normal pressure and temperature and is much more volatile and unstable than commercial gasoline. 3.17 net standard volume NSV The gross standard volume (GSV) corrected to exclude non-merchantable components such as sediment and water (S&W). 3.18 volume correction factor VCF The ratio of the density of a liquid at a given temperature and pressure to its density at a reference temperature and pressure.