GB/T 26930.7-2014 "Carbonaceous materials for the production of primary aluminium — Coal tar pitch — Part 7: Determination of softening point (Mettler method)" specifies the method for determining the softening point of coal tar pitch used in the production of primary aluminium using the Mettler thermomechanical method. This method involves programmed heating to automatically measure the penetration displacement of a small plunger pressed into the asphalt sample under a specific pressure, with the temperature corresponding to a specified displacement amount defined as the softening point.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Q52 | ICS | 71.100.10 |
| Release Date | 2014-07-24 00:00:00 | Implementation Date | 2015-04-01 00:00:00 |
