A modification mas made to a current brinell hardness tester so that it can be used to test hardness of soft material under the condition of F/D 2=15 according to ASTM E10.

• 通过对现有布氏硬度计结构原理的分析 ,采用添加砝码的方法满足了ASTME10中F/D2 值为 15的软质材料的硬度测试。