{{CIAAW2017}} adds a full reference (<ref>...</ref>) for the
standard atomic weight (Ar, standard) of chemical elements as defined by IUPAC (commission:
CIAAW). The source citation is:
This template has options to use by refname, and as plain source (no <ref> tag). See
#Options.
Notes
As CIAAW publishes the atomic weights biannually, in 2015 the website published a new list of standard atomic weights.[2] It appears that in 2015, only the formal standard atomic weight of
ytterbium (70Yb) was changed.[3]