ASTM-D7060 Historical Revision Information
Standard Test Method for Determination of the Maximum Flocculation Ratio and Peptizing Power in Residual and Heavy Fuel Oils (Optical Detection Method)

ASTM-D7060 - 2004 EDITION - SUPERSEDED
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Standard Test Method for Determination of the Maximum Flocculation Ratio and Peptizing Power in Residual and Heavy Fuel Oils (Optical Detection Method)
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Scope

1.1 This test method covers a procedure for quantifying the maximum flocculation ratio of the asphaltenes in the oil and the peptizing power of the oil medium, by an automatic instrument using an optical device.

1.2 This test method is applicable to atmospheric or vacuum distillation residues, thermally cracked residue, intermediate and finished residual fuel oils, containing at least 1 mass % asphaltenes. This test method has not been developed for asphalts.

Note 1—An optical probe detects the formation of flocculated asphaltenes. The start of flocculation is interpreted when a significant and sustained increase in rate-of-change of signal, as measured by the optical probe, ensures flocculation is in progress. The start of flocculation can be detected unambiguously when the sample contains at least 1 % mass asphaltenes as measured by Test Method D 6560.

Note 2—This test method is applicable to products typical of Specification D 396-Grades 5L, 5H, and 6, and Specification D 2880-Grades 3-GT and 4-GT.

1.3 This test method was evaluated in a within-laboratory study in the range of 16 to 57 for the maximum flocculation ratio and in the ranges of 27 to 96 for peptizing power.

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.

Keywords

compatibility; heavy fuel oil; maximum flocculation ratio; peptizing power; P-ratio; residual fuel oil; ICS Number Code 75.160.20 (Liquid fuels)

To find similar documents by ASTM Volume:

05.04 (Petroleum Products and Lubricants (IV): D6973 - latest)

To find similar documents by classification:

75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)

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Document Number

ASTM-D7060-04

Revision Level

2004 EDITION

Status

Superseded

Modification Type

New

Publication Date

Sept. 1, 2004

Document Type

Test Method

Page Count

12 pages

Committee Number

D02.14