BS EN ISO 16859-2:2015规定了所用测试仪器的直接和间接验证方法 用于根据ISO 16859-1测定里氏硬度，还描述了 要进行的验证类型。直接验证包括检查单个仪器的性能参数是否下降 在规定的范围内，而间接验证使用参考硬度测量 根据ISO 16859-3校准的试块，用于检查 在重力方向进行测试的仪器。间接法可单独用于 服务中的定期性能检查。交叉引用:ISO 16859- 1ISO 16859-3ISO 6507-1ISO/IEC指南98-3购买时可用的所有现行修订版均包含在本文件的购买中。

BS EN ISO 16859-2:2015 specifies methods for direct and indirect verification of test instruments used for determining Leeb hardness in accordance with ISO 16859-1, and also describes when these two types of verification are to be performed.The direct verification involves checking that individual instrument performance parameters fall within specified limits, whereas the indirect verification utilizes hardness measurements of reference test blocks, calibrated in accordance with ISO 16859-3, to check the overall performance of the instrument for testing in the direction of gravity. The indirect method can be used on its own for the periodic performance checking in service.Cross References:ISO 16859-1ISO 16859-3ISO 6507-1ISO/IEC Guide 98-3All current amendments available at time of purchase are included with the purchase of this document.