Analysis and discussion of uncertainty mcasurement in international standard methol of rockwell handness test 国外标准中洛氏硬度值测量不确定度的评定方法对比与分析
The measured hardness value is the result of a test performed under standard conditions , and is based on a convention 量得的硬度值乃根据标准情况及惯例而进行测试所得的结果。
Polyurethane type : we usually use this type squeegee which rubber value should be 70 - 90 tested by the durometer 橡胶或聚氨酯刮板：当使用橡胶刮板时，需使用橡胶硬度值为70 - 90的刮板。
Iso 6507 - 4 - metallic materials - vickers hardness test - part 4 : tables of hardness values iso 6507 - 4 : 2005 ; german version en iso 6507 - 4 : 2005 金属材料.维氏硬度试验.第4部分:硬度值表
All springs have an ideal length , and a stiffness that limits how far you can stretch or squeeze the spring 所有弹簧都有一个自身的长度，还有一个硬度值来决定它能够被拉伸和挤压的程度。
