标准摘要
[中文适用范围]： 本文档说明了使用尺寸规格来控制线性或角度尺寸以外的属性所引起的歧义，以及使用几何规格来代替的好处。 尺寸公差可以用±公差或几何规格来表示。 对于除线性或角度尺寸以外的尺寸使用 ± 公差（根据 ISO 2768-1 和 ISO 8062-3 等的个别公差和一般公差）而引起的歧义在附录 A 中进行了解释。 注 1：如图所示的数字本文档仅说明文字，并不反映实际用法。 因此，附图被简化以仅指示相关原理。 注 2：关于尺寸规格的指示，请参见以下内容： 注 3：ISO 1101 中给出了几何规格的规则。 [外文原描述]： This document illustrates the ambiguity caused by the use of dimensional specifications to control properties other than linear or angular size and the benefit of using geometrical specifications instead. Dimensional tolerancing can be indicated by ± tolerancing or geometrical specifications. The ambiguity caused by using ± tolerances for dimensions other than linear or angular sizes (for individual tolerances and general tolerances according to, e.g. ISO 2768-1 and ISO 8062-3) is explained in Annex A. NOTE 1 The figures, as shown in this document, merely illustrate the text and are not intended to reflect actual usage. The figures are consequently simplified to indicate only the relevant principles. NOTE 2 For indications of dimensional specifications, see the following: — ISO 14405-1 for linear size; — ISO 14405-3 for angular size; — ISO 2538-1 and ISO 2538-2 for wedges; — ISO 3040 for cones. NOTE 3 The rules for geometrical specifications are given in ISO 1101.
英文名称Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear or angular sizes