Precision of reference

1. dated reference (to standards)
reference to standards that identifies one or more specific standards in such a way that later revisions of the standard or standards are not to be applied unless the regulation is modified
NOTE: The standard is usually identified by its number and either date or edition. The title may also be given.

2. undated reference (to standards)
reference to standards that identifies one or more specific standards in such a way that later revisions of the standard or standards are to be applied without the need to modify the regulation
NOTE: The standard is usually identified only by its number. The title may also be given.

3. general reference (to standards)
reference to standards that designates all standards of a specified body and/or in a particular field without identifying them individually