牙科.旋转器械试验方法

[中文适用范围]： 本文件规定了牙科用旋转器械的一般测试方法。 这些测试方法用于测量旋转器械的尺寸特征、颈部强度和表面粗糙度，例如车针、铣刀、抛光机、研磨器械和口腔外科用旋转器械（例如钻头和埋头孔）。 如果有的话，具体测试在相应的仪器标准中指定。 本文件没有规定旋转仪器所用材料的测试方法。 注：对于旋转仪器使用的材料，请参见 ISO 21850-1 和相应的仪器标准。 本文件不适用于牙髓器械。 对于牙髓器械，请参阅 ISO 3630-1。 [外文原描述]： This document specifies general test methods for rotary instruments used in dentistry. These test methods are used for measuring the dimensional characteristics, neck strength and surface roughness of rotary instruments, such as burs, cutters, polishers, grinding instruments and rotary instruments used for oral surgery such as drills and countersinks. Specific tests are specified in the respective instrument standards, if available. This document does not specify test methods for materials used for rotary instruments. NOTE For materials used for rotary instruments, see ISO 21850 - 1 and respective instrument standards. This document is not applicable to endodontic instruments. For endodontic instruments, see ISO 3630 - 1 .