This standard is concerned with a number of commonly used quantities, and examples of decimal multiples and sub-multiples of SI units, as well as of some other units which may be used. It is suggested that the selection shown, while not intended to be restrictive, will be helpful in presenting values of quantities in an identical manner in similar contexts within the various sectors of technology. For some needs (for example, in applications in science and education), it is recognized that greater freedom will be required in the choice of decimal multiples and sub-multiples of SI units than is exemplified in the tables which follows.