<std-ref> contains the value (as a string) of one standard reference designator, for example,
ISO 9001:2015
. This designator typically consists of an originator or SDO-abbreviated name (e.g.,
ISO
) and a standard number or identifier (such as 9001
), and it may also include a year (such as 2015
) or other information that uniquely identifies a given standard.
Any combination of:
Text, numbers, or special characters