International Standardization Organizations ISO and IEC, as well as ASTM, allow free access to some standards that are available in “read only" form through the following links:
ISO standards: www.iso.org/covid19
IEC standards: https://go.iec.ch/covid19faq
ASTM standards: https://www.astm.org/COVID-19/
By the decision of the technical administrations of the European Standardization Organizations CEN and CENELEC, free access to European standards is no longer possible from March 31, 2021.