UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASTM International - ASTM D2140-97

Standard Test Method for Carbon-Type Composition of Insulating Oils of Petroleum Origin

inactive
Buy Now
Organization: ASTM International
Publication Date: 10 April 1997
Status: inactive
Page Count: 6
ICS Code (Petroleum products in general): 75.080
ICS Code (Lubricants, industrial oils and related products): 75.100
scope:

1.1 This test method may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. For routine analytical purposes it eliminates the necessity for complex fractional separation and purification procedures. The test method is applicable to oils having average molecular weights from 200 to above 600, and 0 to 50 aromatic carbon atoms.

1.2 Carbon-type composition is expressed as percentage of aromatic carbons, percentage of naphthenic carbons, and percentage of paraffinic carbons. These values can be obtained from the correlation chart, Fig. 1, if both the viscosity-gravity constant (VGC) and refractivity intercept (r) of the oil are known. Viscosity, density and specific gravity, and refractive index are the only experimental data required for use of this test method.

1.3 This test method is useful for determining the carbon-type composition of electrical insulating oils of the types commonly used in electric power transformers and transmission cables. It is primarily intended for use with new oils, either inhibited or uninhibited.

1.4 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.

Document History

January 1, 2017
Standard Practice for Calculating Carbon-Type Composition of Insulating Oils of Petroleum Origin
1.1 This practice may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. For routine analytical purposes it eliminates the...
November 1, 2008
Standard Practice for Calculating Carbon-Type Composition of Insulating Oils of Petroleum Origin
1.1 This practice may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. For routine analytical purposes it eliminates the...
March 10, 2003
Standard Test Method for Carbon-Type Composition of Insulating Oils of Petroleum Origin
1.1 This test method may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. For routine analytical purposes it eliminates the...
ASTM D2140-97
April 10, 1997
Standard Test Method for Carbon-Type Composition of Insulating Oils of Petroleum Origin
1.1 This test method may be used to determine the carbon-type composition of mineral insulating oils by correlation with basic physical properties. For routine analytical purposes it eliminates the...
Advertisement