标准摘要
[中文适用范围]： ISO 8503 的这一部分规定了光学显微镜，并描述了符合 ISO 8503-1 要求的 ISO 表面轮廓比较器的校准程序。 ISO 8503 的这一部分也适用于 hy = 20 μm 至 200 μm 范围内基本平面喷砂清理钢的表面轮廓的确定。 该测定可以在喷砂清理基材的代表性部分上进行，或者，如果直接观察表面不可行，则可以在表面的复制品上进行（参见附录 E）。 注：在适当的情况下，该程序可用于评估其他喷砂清理基材的粗糙度轮廓。 ISO 8503-4 中描述了替代程序。 [外文原描述]： ISO 8503-3:2012 specifies the optical microscope and describes the procedure for calibrating ISO surface profile comparators conforming to the requirements of ISO 8503‑1. It is also applicable to the determination of the surface profile, within the range of 20 μm to 200 μm, of essentially planar blast-cleaned steel. The determination can be carried out on a representative section of the blast-cleaned substrate or, if direct observation of the surface is not feasible, on a replica of the surface.
英文名称Preparation of steel substrates before application of paints and related products — Surface roughness characteristics of blast-cleaned steel substrates — Part 3: Method for the calibration of ISO surface profile comparators and for the determination of surface profile — Focusing microscope procedure