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Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter (Includes all amendments And changes 7/20/2017).
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení a počítání částic v lehké a střední destiláty paliv, Automatický čítač částic
NORMA vydána dne 1.12.2012
Označení normy: ASTM D7619-12b
Poznámka: NEPLATNÁ
Datum vydání normy: 1.12.2012
Kód zboží: NS-38840
Počet stran: 10
Přibližná hmotnost: 30 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
automatic particle counting, automotive diesel, biodiesel, fuel cleanliness, gas oil, gasoline, kerosine, marine diesel, ICS Number Code 75.160.20 (Liquid fuels)
Significance and Use | ||||||||||||||||||||||||||||||||||||
5.1 This test method is intended for use in the laboratory or in the field for evaluating the cleanliness of distillate fuels, and liquid bio fuels. It is not applicable to on or in-line applications. 5.2 This test method offers advantage over traditional filtration methods in that it is a precise rapid test, and advantage over visual methods as it is not subjective. 5.3 An increase in particle counts can indicate a change in the fuel condition caused by storage or transfer for example. 5.4 High levels of particles can cause filter blockages and have a serious impact on the life of pumps, injectors, pistons and other moving parts. Knowledge of particle size in relation to the metallurgy can provide vital information especially if the hardness of particles is also known from other sources. 5.5 This test method specifies a minimum requirement for reporting measurements in particle size bands (see 5.6 Obtaining a representative sample and following the recommended sample and test specimen preparation procedures and timescales is particularly important with particle counting methods. (See Sections 8, 10, 14.1.4 and Note 8.) |
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1. Scope | ||||||||||||||||||||||||||||||||||||
1.1 This test method uses a specific automatic particle counter2 (APC) to count and measure the size of dispersed dirt particles, water droplets and other particles, in light and middle distillate fuel, and bio fuels such as biodiesel and biodiesel blends, in the overall range from 4 µm(c) to 100 µm(c) and in the size bands ≥4 µm(c), ≥6 µm(c), and ≥14 µm(c). 1.2 The values stated in SI units
are to be regarded as standard. No other units of measurement are
included in this 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||||||||||||||||||||||
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