Work Item
ASTM WK74368

Revision of D7157-18 Standard Test Method for Determination of Intrinsic Stability of Asphaltene-Containing Residues, Heavy Fuel Oils, and Crude Oils (n-Heptane Phase Separation; Optical Detection)


None Provided


The current instrument is to retire. The new instrument is more automated. The purpose of this ballot is to introduce the new instrument. The method will be split into two parts. The first will contain the original instrument; which ahs precision from an ILS. Thus protecting legacy owners. The second will contain the new instrument which has limited precison to allow take up and subsequent ILS within five years.


Developed by Subcommittee: D02.14

Committee: D02

Staff Manager: Alyson Fick

Work Item Status

Date Initiated: 10-14-2020

Technical Contact: James Barker

Item: 003

Ballot: D02.14 (20-05)

Status: Will Reballot Item

Item: 001

Ballot: D02.14 (21-05)

Status: Item Going To Next Ballot Level

Item: 001

Ballot: D02.14 (22-01)

Status: Ballot Item Approved

Item: 002

Ballot: D02.14 (22-01)

Status: Ballot Item Approved