Work Item
ASTM WK84450

Revision of D2129-17 Standard Test Method for Color of Clear Electrical Insulating Liquids (Platinum-Cobalt Scale)


Ballot Number: D27 (22-03)
No statement of expiration time for Platinum-Cobalt color standards is listed in the
method. For example, Lovibond recommends the samples be stored at 4C for no more
than 24 hours, and warmed before use. Even Millipore Aldrich puts an expiration date
on their stock reference solution. What is known about the stability of the standard
should be referenced in the standard if it has a negative impact on the measurement.


Developed by Subcommittee: D27.07

Committee: D27

Staff Manager: Kelly Paul

Work Item Status

Date Initiated: 12-07-2022

Technical Contact: Kevin Wirtz

Item: 000