GB/T 9966.3-2020 specifies the test methods for fundamental physical properties of natural stone, including water absorption, bulk density, true density, and true porosity. These key parameters, which characterize the compactness and pore characteristics of the material, are calculated by measuring the mass of the specimen under different conditions (dry, water-saturated, and suspended in water).
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 |