BS 2045-1965 优先数

标准号：BS 2045-1965
中文标准名称：优先数
英文标准名称：Preferred numbers
标准类型：A20
发布日期：1965/8/10 12:00:00
实施日期：1965/8/10 12:00:00
中国标准分类号：A20
国际标准分类号：17.020
适用范围：Details of the R5, R10, R20, R40 and R80 series and of the more rounded values of preferred numbers, together with a general introduction to the subject (based on BS 1638, now withdrawn) and guidance in the use of preferred numbers and series of preferred numbers. International examples of the use of preferred numbers and recommendations for calculating with them are appended.