Here are some quick links to websites that list the harmonised standards for the different directives. MD is the machinery directive that will be required under the amended MDD and AIMD.
MDD
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:01993L0042-20071011
AIMD
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:01990L0385-20071011
IVDMD
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:01998L0079-20120111
RTTE
https://eur-lex.europa.eu/legal-content/EN/ALL/?uri=CELEX%3A31999L0005
EMC
entr-2009-00920-00-00-tra-00_en
MD
https://ec.europa.eu/growth/single-market/european-standards/harmonised-standards/machinery_en
Originally posted March 9, 2008. Links recently updated.