ASTM-D2503 1997

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D2503-92(1997) Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure

Published By	Publication Date	Number of Pages
ASTM	1997	3

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Description

ASTM D2503-92-Reapproved1997

Historical Standard: Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure

ASTM D2503

Scope

1.1 This test method covers the determination of the average relative molecular mass (molecular weight) of hydrocarbon oils. It can be applied to petroleum fractions with molecular weights (relative molecular mass) up to 3000; however, the precision of the method has not been established above 800 molecular weight (relative molecular mass). The method should not be applied to oils having initial boiling points lower than 220°C.

1.2 Values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.3 This standard does not purport to address all of the safety problems, 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.> For specific hazard statements, 5.2.1, 5.2.3, and 5.2.3.

Keywords

hydrocarbons; molecular weight; osmometer; relative molecular mass; thermoelectric measurement; vapor pressure

ICS Code

ICS Number Code n/a

DOI:

Additional information

Standard Title	D2503-92(1997) Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure
Published Code	ASTM
Publication Date	1997
Pages Count	3