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ASTM D4863-08
Standard Test Method for Determination of Lubricity of Two-Stroke-Cycle Gasoline Engine Lubricants
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení mazivosti dvoudobých cyklu Lubricants benzínový motor
NORMA vydána dne 1.12.2008
Informace o normě:
Označení normy: ASTM D4863-08
Poznámka: NEPLATNÁ
Datum vydání normy: 1.12.2008
Kód zboží: NS-28934
Počet stran: 9
Přibližná hmotnost: 27 g (0.06 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D4863-08 :
Keywords:
Air-cooled gasoline engines, Combustion chamber, Dynamometer testing, Heating tests--petroleum products, Instrumental measurement--petroleum products, Lubricants (fluid), Lubricating oils, Lubricity/lubricating properties, Performance--petroleum products/applications, Piston rings, Spark plugs, Temperature tests--petroleum products, Two-stroke-cycle engines, Yamaha CE-50S test engine, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||
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The oil in a two-stroke-cycle gasoline engine is either mixed with the fuel prior to use or is metered into the fuel supply at, or at some point prior to, its passage into the engine crankcase. The possibility of the amount of oil actually present in the engine being less than optimum always exists. Also, with some oil metering systems short periods of operation with less oil than desirable can occur when the power is increased suddenly. It has also been found that the incidence of piston scuff early in the life of the engine may be related to the lubricity of the oil used as defined by test procedures of this type. |
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| 1. Scope | ||||||||||||||||||||||||||
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1.1 This test method evaluates the ability of lubricants to minimize piston and bore scuffing in two-stroke-cycle spark-ignition gasoline engines. 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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