APPENDIX I 



THE METRIC SYSTEM 



U.S. CUSTOMARY AND METRIC SYSTEM 

 UNITS OF MEASUREMENTS 



THESE PREFIXES MAY BE APPLIED 

 TO ALL SI UNITS 



Multiples and Stbmnltiplet 





Prtfiits 



Symbols 



1 000 000 000 000 = 



10 12 



tera (ter'a) 



T 



1 000 000 000 = 



10 9 



giga (ji'ga) 



G 



1 000 000 = 



10 6 



mega (meg 'a) 



M • 



1 000 = 



10 3 



kilo (kil'o) 



k • 



100 = 



10 2 , 



hecto (hek'to) 



h 



10 = 



10 



deka (dek'a) 



da 



0.1 = 



10-' 



deci (des'i) 



d 



0.01 = 



io- 2 



w ^ 



centi (sen'ti) 



c • 



0.001 = 



io- 3 



milli (mil'i) 



m • 



0.000 001 = 



10* 



micro (mi 'kro) 



a • 



0.000 000 001 = 



IO" 9 



nano (nan'o) 



n 



0.000 000 000 001 = 



io- 12 



pi co (pe'ko) 



P 



0.000 000 000 000 001 = 



IO' 15 



femto (fern 'to) 



f 



0.000 000 000 000 000 001 = 



io - ,e 



atto (at'to) 



a 



• MOST COMMONLY USED 







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