1.1本标准概述了建筑物设计和施工中常用的国际单位制（包括倍数和子倍数）。 1.2此外，给出了国际单位制单位和符号的表示以及与国际单位制一起显示的数值的规则和建议。 1.3附录X1中给出了适用于施工社区的转换系数选择。 1.4本文件中包含的国际单位符合并补充了ASTM公制惯例E380-82标准，并且通常符合国际标准组织（ISO）1000-1981国际单位和使用其倍数和某些其他单位的建议，以及ISO/31系列标准、数量和国际单位制。

1.1 This standard outlines a selection of SI units, with multiples and submultiples, for general use in building design and construction. 1.2 In addition, rules and recommendations are given for the presentation of SI units and symbols, and for numerical values shown in conjunction with SI. 1.3 A selection of conversion factors appropriate for use within the construction community is given in Appendix X1. 1.4 The SI units included in this document comply with and augment the ASTM Standard for Metric Practice E380 - 82 and are generally consistent with International Standards Organization (ISO) 1000 - 1981 SI Units and Recommendations for the Use of Their Multiples and Certain Other Units, and the ISO/31 Series of Standards, Quantities, and Units of SI.