ASTM E621-94 (R1999)e1 PDF Download

ASTM E621-94 (R1999)e1 is a standard that provides guidelines for the use of the metric system (SI units) in building design and construction. It outlines a selection of SI units, along with their multiples and submultiples, that are deemed appropriate for use in this industry.

The standard also offers rules and recommendations for the presentation of SI units and symbols, as well as for numerical values displayed in conjunction with SI. This ensures a consistent and uniform approach to the use of SI units in building design and construction.

Furthermore, the standard includes a selection of conversion factors that are relevant and useful within the construction community. These conversion factors help facilitate the conversion between SI units and other commonly used measurement systems, providing flexibility and convenience in the construction process.

The SI units specified in this standard comply with the ASTM Standard for Metric Practice E380-82 and are generally consistent with the International Standards Organization (ISO) 1000-1981 SI Units and Recommendations for the Use of Their Multiples and Certain Other Units. The ISO/31 Series of Standards, Quantities, and Units of SI is also considered when determining the appropriate SI units for building design and construction.