BS 2856-1973 工程图纸的英制与公制尺寸的精确换算

标准号：BS 2856-1973
中文标准名称：工程图纸的英制与公制尺寸的精确换算
英文标准名称：Precise conversion of inch and metric sizes on engineering drawings
标准类型：J04
发布日期：1973/10/8 12:00:00
实施日期：1973/10/8 12:00:00
中国标准分类号：J04
国际标准分类号：01.060;01.100.01;17.040.10
适用范围：Provides a procedure for the conversion of inch and metric sizes on engineering drawings which will give the essential accuracy required for precise dimensional interchangeability. The standard gives specific guidance on the optimum fineness of rounding the converted size, and recommends a procedure for conversion which takes the form of simple rules covering successive steps in the conversion. Examples of the application of the rules are given for a variety of cases. Tables of conversion from inches to millimetres, and vice versa, are included in an appendix to facilitate the work.