Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
Standard Test Method for Determination of the Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels and Aviation Turbine Fuels By Supercritical Fluid Chromatography
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení obsah aromátů a polyjaderných aromatických Obsah motorové nafty a letecké turbínové paliv chromatografie s nadkritickou tekutinou
NORMA vydána dne 1.4.2015
Označení normy: ASTM D5186-15
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2015
Kód zboží: NS-591131
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
aromatic hydrocarbons, aromatics, diesel fuel, monoaromatics, polynuclear, supercritical fluid chromatography ,, ICS Number Code 75.160.20 (Liquid fuels)
Significance and Use | ||||||||
5.1 The aromatic hydrocarbon content of motor diesel fuels is a factor that can affect their cetane number and exhaust emissions. The aromatic hydrocarbon content and the naphthalenes content of aviation turbine fuels affect their combustion characteristics and smoke-forming tendencies. These properties represent specifications for aviation turbine fuels (see Specification D1655). 5.2 The United States Environmental Protection Agency (USEPA) regulates the aromatic content of diesel fuels. California Air Resources Board (CARB) regulations place limits on the total aromatics content and polynuclear aromatic hydrocarbon content of motor diesel fuel, thus requiring an appropriate analytical determination to ensure compliance with the regulations. Producers of diesel fuels will require similar determinations for process and quality control. This test method can be used to make such determinations. 5.3 This test method is applicable to materials in the boiling range of motor diesel fuels and is unaffected by fuel coloration. Test Method D1319, which has been mandated by the USEPA for the determination of aromatics in motor diesel fuel, excludes materials with final boiling points greater than 315 °C (600 °F) from its scope. Test Method D2425 is applicable to the determination of both total aromatics and polynuclear aromatic hydrocarbons in diesel fuel, but is much more costly and time-consuming to perform. 5.4 Results obtained by this test method have been shown to be statistically more precise than those obtained from Test Method D1319 for typical diesel fuels, and this test method has a shorter analysis time.3 Cooperative study data1.1 This test method covers the determination of the total amounts of monoaromatic and polynuclear aromatic hydrocarbon compounds in motor diesel fuels, aviation turbine fuels, and blend stocks by supercritical fluid chromatography (SFC). The range of aromatics concentration to which this test method is applicable is from 1 to 75 mass %. The range of polynuclear aromatic hydrocarbon concentrations to which this test method is applicable is from 0.5 to 50 mass %. 1.2 The values stated in SI units are to be regarded as standard. The values stated in inch-pound units are for information only. 1.3 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. |
||||||||
2. Referenced Documents | ||||||||
|
Chcete pravidelně odebírat informace o nově vycházejících normách z celého světa a to zcela zdarma?
Přihlašte se k odběru. Vše je velice jednoduché a absolutně ZDARMA.
Na výběr máte vydavatele z celého světa.
Poslední aktualizace: 02.05.2024 (Počet položek: 2 896 910)
© Copyright 2024 NORMSERVIS s.r.o.