Table 8 Toughness evaluation index standard.
Index | Low level | Slightly lower level | Medium level | Slightly higher level | High level |
|---|---|---|---|---|---|
C1 | 0, 1 | 1, 2 | 2, 3 | 3, 4 | 4, 5 |
C2 | 1050, 1000 | 1000, 950 | 950, 900 | 900, 850 | 850, 800 |
C3 | 25, 40 | 40, 55 | 55, 70 | 70, 85 | 85,100 |
C4 | 0, 500 | 500, 1000 | 1000, 3000 | 3000, 5000 | 5000, 7000 |
C5 | 130, 90 | 90, 50 | 50, 10 | 10, 5 | 5, 0 |
C6 | 150, 100 | 100, 60 | 60, 30 | 30, 15 | 15, 0 |
C7 | 30,000, 20,000 | 20,000, 15,000 | 15,000, 10,000 | 10,000, 5000 | 5000, 0 |
C8 | 0, 100 | 100, 200 | 200, 300 | 300, 400 | 400, 500 |
C9 | 0, 1 | 1, 2 | 2, 3 | 3, 4 | 4, 5 |
C10 | 55, 65 | 65, 75 | 75, 85 | 85, 95 | 95, 100 |
C11 | 0, 30,000 | 30,000, 60,000 | 60,000, 90,000 | 90,000, 120,000 | 120,000, 150,000 |
C12 | 0, 5000 | 5000, 10,000 | 10,000, 50,000 | 50,000, 100,000 | 100,000, 200,000 |
C13 | 0, 2000 | 2000, 4000 | 4000, 6000 | 6000, 8000 | 8000, 10,000 |
C14 | 0, 5 | 5, 10 | 10, 20 | 20, 30 | 30, 40 |
C15 | 0, 150 | 150, 300 | 300, 450 | 450, 600 | 600, 750 |
C16 | 30,000, 24,000 | 24,000, 18,000 | 18,000, 12,000 | 12,000, 6000 | 6000, 0 |
C17 | 0, 20 | 20, 40 | 40, 60 | 60, 80 | 80, 100 |
C18 | 0, 60 | 60, 120 | 120, 180 | 180, 240 | 240, 300 |
C19 | 0, 40 | 40, 60 | 60, 80 | 80, 100 | 100, 120 |
C20 | 0, 1,000,000 | 1,000,000, 2,000,000 | 2,000,000, 3,000,000 | 3,000,000, 4,000,000 | 4,000,000, 5,000,000 |
C21 | 0, 30,000 | 30,000, 60,000 | 60,000, 90,000 | 90,000, 120,000 | 120,000, 150,000 |
C22 | 0, 14,000 | 14,000, 28,000 | 28,000, 42,000 | 42,000, 56,000 | 56,000, 70,000 |
C23 | 25, 20 | 20, 15 | 15, 10 | 10, 5 | 5, 0 |
C24 | 5, 4 | 4, 3 | 3, 2 | 2, 1 | 1, 0 |
C25 | 10, 8 | 8, 6 | 6, 4 | 4, 2 | 2, 0 |
C26 | 0, 5000 | 5000, 10,000 | 10,000, 20,000 | 20,000, 30,000 | 30,000, 40,000 |
C27 | 3000, 1500 | 1500, 900 | 900, 700 | 700, 500 | 500, 0 |
