ISO 18653:2003规定了用于渐开线、螺旋线、节距和跳动齿轮测量的测量仪器的评估方法。它既适用于直接测量跳动的仪器，也适用于通过指数测量计算跳动的仪器。它还提供了评估齿厚测量仪器的建议，必要时还包括使用校准齿轮伪影估计测量不确定度。它不涉及根据ISO 17025认证的实验室对工件的校准； 其要求也不是产品齿轮的验收规范（见ISO 1328-1、ISO 1328-2、ISO/TR 10064-1和ISO/TR 10064-2）。产品齿轮测量不确定度的估计超出其范围（建议参见ISO/TR 10064-5）。

ISO 18653:2003 specifies methods for the evaluation of measuring instruments used for gear measurements of involute, helix, pitch and runout. It is applicable both to instruments that measure runout directly and to those that compute it from index measurements. It also gives recommendations for the evaluation of tooth thickness measuring instruments and, of necessity, includes the estimation of measurement uncertainty with the use of calibrated gear artifacts. It does not address the calibration of artifacts by laboratories accredited in accordance with ISO 17025; nor are its requirements intended as an acceptance specification of product gears (see ISO 1328-1, ISO 1328-2, ISO/TR 10064-1 and ISO/TR 10064-2). The estimation of product gear measurement uncertainty is beyond its scope (see ISO/TR 10064-5 for recommendations).