SI , conversion factors

Element Nuclide Gamma Ray Energy (keV) Cone, in Standard SRM 1633a CounP3 Analytical Precision SRM 679 RNL to SI Conversion Factors... 

Butcher, Kenneth S., Linda D. Crown, and Elizabeth J. Gentry. The International System of Units (SI) Conversion Factors for General Use. Gaithersbui, Md. National Institute of Standards and Technology, 2006. A governmental guide to the International System ofUnits. 

Throughout the book the forthcoming metrication of industry has been a consideration and the majority of data are presented in SI units. However, flexibility has also been a factor and a number of non-preferred SI units are used and, occasionally, where it is felt the subject warrants it British units are used and an SI conversion factor given. 

Since in most cases it is preferable to use SI units, especially for dynamics problems, the conversion factors are listed to convert English units by multiplying by the listed conversion factor to SI units. Obviously, to convert from SI units to English, one just has to divide the SI value by the conversion factor. The English to SI conversion factors for units of interest are listed in Table A.l. In addition, there are some conversions that are of interest due to their historical use in polymers and mechanics that are listed in Table A.2. 

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