Quick Reference: http://rs.tdwg.org/dwc/terms/index.htm#MeasurementOrFact

• measurementUnit
• measurementDeterminedDate

measurementUnit

Quick Reference: http://rs.tdwg.org/dwc/terms/index.htm#measurementUnit

An explanation of the International System of Units can be found at http://physics.nist.gov/cuu/Units/.

measurementDeterminedDate

Quick Reference: http://rs.tdwg.org/dwc/terms/index.htm#measurementDeterminedDate

Further explanation of the International Standards Organization standard ISO 8601 can be found at http://en.wikipedia.org/wiki/ISO_8601.