FREQUENCY
http://data.posccaesar.org/rdl/RDS351989
<http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003#SinglePropertyDimension>
2000.07.05
u82237
f = 1/T where T is a period Number of cycles divided by time (ISO 31-5:1992(E))
RDS351989
FREQUENCY
FREQUENCY
Qualified