| Grade A Brinell Hardness Standard Blocks | |
| Type | Dimensions |
| 250-350HBW10/3000 | Round Ф90mm×16mm or Ф65 mm×10 mm 0.85 kg or 0.3 kg Each |
| 250-350HBW5/750 | |
| 250-350HBW2.5/187.5 | |
| 150-250HBW10/3000 | |
| 150-250 HBW5/750 | |
| 150-250HBW2.5/187.5 | |
| 75-125HBW10/1000 | |
| 75-125HBW5/250 | |
| 75-125HBW2.5/62.5 | |