| 8 | | 2021 43 | | | 2023 4 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GB / T 11615 2010 | DZ / T 03312020 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1 . | | | 2 . | 25 °C | | | | | 3 . | | 4 . | | | | | | | | | | | 1 | | 5. | | | | | | | 2 | | | | | | | | | | 2 . | | 6 . | | | | | | | | 7 . | | | | | | | | | |