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ＪＢ／Ｔ５１１５６—９４《气腿式凿岩机产品质量分等》及该标准修订后的报批稿ＪＢ／Ｔ５１１５６—××××《气腿式凿岩机产品质量分等》标准，在指标体系的设置、分等指标的选择和分等指标值的确定上均存在一定问题。从分析两个标准存在的问题入手，经查阅有关文献和标准并对各产品的检测数据进行统计分析与研究，最后提出了解决两个标准存在问题的方法，完成了本课题的研究工作。本研究对完成该标准的修订工作，提高标准的水平和可操作性，具有重要的参考价值。
JB / T51156-94 “air leg rock drill product quality classification” and the revised draft for approval of the standard JB / T51156- ×××× “Air leg rock drill Product Quality Grading” standard, in the index system settings, points There are some problems on the choice of indicators and the determination of index values. Beginning with the analysis of the problems existing in the two standards, the relevant documents and standards were consulted, and statistical analysis and research were made on the test data of each product. Finally, the methods to solve the problems existing in the two standards were put forward and the research work of this topic was completed. This study has important reference value for completing the revision work of this standard and improving the standard level and operability.