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Committee Announces Instrumentation Activities

Committee E37 on Thermal Measurements invites participation at its August 19 meeting at Carroll Knicely Conference Center, Boardroom 110, Western Kentucky University South Campus, Bowling Green.

According to Roger Blaine, chairman of Subcommittee E37.01 on Test Methods and Recommended Practices, the committee has extended its field of interest to include rheological applications and apparatus. “The first activity under this extended scope is the calibration (or conformance) of rheological apparatus within the new Task Group E37.01.29,” says Blaine, senior scientist, TA Instruments, New Castle, Del. The group’s first project is calibration or conformance of viscosity measurements using new NIST SRM 2490.

The subcommittee is developing two standards. A new Standard for Penetration Softening Temperature by Thermomechanical Analysis (TMA) is a test “intended to produce results similar to the Vicat Softening Temperature test but to use a lower applied force applied to a smaller penetration needle,” says Blaine, who has worked in thermal analysis 30 years.

A new Standard for Sulfated Ash or Residue-on-Ignition (ROI) by Thermogravimetry (TGA) is “intended to be equivalent to the ROI measurement common to the pharmaceutical industry and to the sulfated ash test in the lubrication field,” says Blaine, “but will use a smaller test specimen and automated thermogravimetrical analysis equipment. The test quantifies inorganic metal content in hydrocarbon samples.”

To comment or participate, contact Blaine (phone: 302/427-4017). For Committee E37 membership or meeting details, contact Tom O’Toole, manager, Technical Committee Operations, ASTM International (phone: 610/832-9739). //

Copyright 2003, ASTM