measurement standard
realization of the definition of a given quantity used as reference
molecular weight size marker
set of similar molecules differing in size with known mol. weight, for comparison with a substance of unknown weight
open standard
standard that is openly accessible and usable by anyone
International Electrotechnical Vocabulary
vocabulary to promote the global unification of terminology in the field of electrotechnology, electronics and telecommunications
consumer basket
commodity bundles, used to track inflation
Darwin Core Archive
biodiversity informatics data standard
Vienna Standard Mean Ocean Water
water standard defining the isotopic composition of fresh water
primary standard
in metrology, highest quality standard accepted without reference to other standards of the same quantity
imaging phantom
object used as a substitute for live or cadaver subjects
measuring system
set of one or more measuring instruments used to generate measured quantity values
calibration standard
special reference device for verification and calibration
measure
in quantum physics
European Credit Transfer and Accumulation System
standard means for comparing academic credits across the European Union
material measure
physical object with a known value of some property, used for comparison
gauge block
a system for producing precision lengths by stacking components