This standard specifies the method for determining the ash content of direct coal liquefaction residues, including terms and definitions, method overview, reagents and materials, instruments and equipment, determination steps, result calculation, method precision and test report. It is suitable for evaluating the ash content remaining in the direct coal liquefaction process.
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 | D21 | ICS | 73.040 |
| Release Date | 2013-09-18 00:00:00 | Implementation Date | 2014-03-01 00:00:00 |