标准摘要
[中文适用范围]： 最佳尺度将通过特别考虑以下两个矛盾的趋势来确定：步长太宽的尺度会导致材料浪费和制造成本的增加，而间距太近的尺度会导致制造成本的增加。 模具成本以及库存价值。 在选择数值范围时，选择与所要满足的要求一致的比例最高的系列，顺序为：R 5、R 10 等。 [外文原描述]： The best scale will be determined by taking into consideration, in particular, the two following contradictory tendencies: a scale with too wide steps involves a waste of materials and an increase in the cost of manufacture, whereas a too closely spaced scale leads to an increase in the cost of tooling and also in the value of stock inventories. In selecting a scale of numerical values, choose that series having the highest ratio consistent with the desiderata to be satisfied, in the order: R 5, R 10, etc.
英文名称Guide to the use of preferred numbers and of series of preferred numbers