Appendix J Conversion Factors and Constants
SI Units and Conversion Factors
Table J-l shows the basic units and some derived units of the International System of Units (SI).1 The main advantage of this system is internal coherence; i.e., no conversion factors are needed when using basic or derived SI units.
1 A guide for using the SI system is given by B. N. Taylor, 1995, MIST Special Publication 811, Washington: U.S. Government Printing Office.
In SI, mass is expressed in kilograms, force in newtons, and pressure in newtons per square meter (pascal). Usually, a prefix is attached to SI ...