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Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry
Přeložit název
NORMA vydána dne 15.1.2019
Označení normy: ASTM D2425-19
Poznámka: NEPLATNÁ
Datum vydání normy: 15.1.2019
Kód zboží: NS-937108
Počet stran: 14
Přibližná hmotnost: 42 g (0.09 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
conventional hydrocarbons, hydrocarbon types, mass spectrometry, middle distillates, synthesized hydrocarbons,, ICS Number Code 75.080 (Petroleum products in general)
Significance and Use | ||||
5.1 A knowledge of the hydrocarbon composition of process streams and petroleum products boiling within the range of 160 °C to 343 °C (320 °F to 650 °F) i is useful in following the effect of changes in process variables, diagnosing the source of plant upsets, and in evaluating the effect of changes in composition on product performance properties. 5.2 A test method to determine total cycloparafins and low level aromatic content is necessary to meet specifications for aviation turbine fuel containing synthesized hydrocarbons. |
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1. Scope | ||||
1.1 This test method covers an analytical scheme using the mass spectrometer to determine the hydrocarbon types present in conventional and synthesized hydrocarbons that have a boiling range of 160 °C to 343 °C (320 °F to 650 °F), 5 % to 95 % by volume as determined by Test Method D86. Samples with average carbon number value of paraffins between C12 and C16 and containing paraffins from CNote 1: This test method was developed on Consolidated Electrodynamics Corporation Type 103 Mass Spectrometers. Operating parameters for users with a Quadrupole Mass Spectrometer are provided. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||
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