BS EN ISO 14405-1:2016确立了线性尺寸的默认规范运算符（见ISO 17450-2） 并为尺寸特征定义了一些线性尺寸的特殊规格运算符，例如“圆柱体”， “球体”、“圆环体”、“圆”、“两个平行的相对平面”或“两条平行的相对直线”。它还定义了这些线性尺寸的规格修改器和图纸指示。ISO 14405的本部分涵盖以下线性尺寸:局部尺寸:两点尺寸；球形尺寸；截面尺寸；部分大小；全局大小:直接全局线性大小:最小二乘大小；最大内接尺寸；最小外切尺寸；最小最大尺寸；间接全局线性尺寸；计算尺寸:圆周直径；面积直径；体积直径；排名顺序大小:最大大小；最小尺寸；平均大小；中等大小；中段- 射程大小；尺寸范围；尺寸的标准偏差。ISO 14405的本部分定义了以下线性尺寸公差:a+和/或-极限偏差（例如0/-0019）（见图11）；尺寸上限（ULS）和/或尺寸下限（LLS）（例如最大15,2，最小12，或30,2/30181） （见图13）；符合ISO 286-1的ISO公差等级代码（例如10 h6）（见图12）； 有或没有修饰符（见表1和表2）。ISO 14405的这一部分提供了一套工具来表达几种类型的尺寸特征。事实并非如此 提供有关功能或用途与尺寸特征之间关系的任何信息。交叉引用:ISO 286-1ISO 8015ISO 17450-1ISO 17450-2:2012ISO 17450-3ISO 81714-1ISO 492ISO 1101ISO 2768-1ISO 3098-2ISO 10579:2010ISO 14638:2015ISO/TS 17863购买本文件时提供的所有当前修订版均包括在内。

BS EN ISO 14405-1:2016 establishes the default specification operator (see ISO 17450-2) for linear size and defines a number of special specification operators for linear size for features of size, e.g. "cylinder", "sphere", "torus", "circle", "two parallel opposite planes", or "two parallel opposite straight lines".It also defines the specification modifiers and the drawing indications for these linear sizes.This part of ISO 14405 covers the following linear sizes:local size:two-point size;spherical size;section size;portion size;global size:direct global linear size:least-squares size;maximum inscribed size;minimum circumscribed size;minimax size;indirect global linear size;calculated size:circumference diameter;area diameter;volume diameter;rank-order size:maximum size;minimum size;average size;median size;mid-range size;range of sizes;standard deviation of sizes.This part of ISO 14405 defines tolerances of linear sizes for the following:a + and/or - limit deviation (e.g. 0/- 0,019) (see Figure 11);an upper limit of size (ULS) and/or lower limit of size (LLS) (e.g. 15,2 max., 12 min., or 30,2/30,181) (see Figure 13);an ISO tolerance class code in accordance with ISO 286-1 (e.g. 10 h6) (see Figure 12); with or without modifiers (see Tables 1 and 2).This part of ISO 14405 provides a set of tools to express several types of size characteristic. It does not present any information on the relationship between a function or a use and a size characteristic.Cross References:ISO 286-1ISO 8015ISO 17450-1ISO 17450-2:2012ISO 17450-3ISO 81714-1ISO 492ISO 1101ISO 2768-1ISO 3098-2ISO 10579:2010ISO 14638:2015ISO/TS 17863All current amendments available at time of purchase are included with the purchase of this document.