GB/T 9966.6-2020 specifies the test method for the acid resistance of natural stone. It involves immersing stone samples in a sulfuric acid solution of a specified concentration. After a designated period, the ability of the stone to resist corrosion by acidic substances is evaluated by observing surface changes and calculating the mass loss rate.
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 | Q21 | ICS | 91.100.15 |
| Release Date | 2020-03-06 00:00:00 | Implementation Date | 2021-02-01 00:00:00 |