Yury Katkov: As far as I know, sometimes thedrafts of ISO standards are available for free. Is there a free draft version somewhere

One can get some text information within the ISO database, here is the documentation:
http://isotc.iso.org/livelink/livelink?func=ll&objId=8421449&objAction=Open&nexturl=%2Flivelink%2Flivelink%3Ffunc%3Dll%26objId%3D8422698%26objAction%3Dbrowse%26sort%3Dname

but you don't get RDF specifications etc.

that is a search at:
http://www.iso.org/obp/ui/#search

for for example: cutting and grinding

(there is sofar no direct link to a search request)

reveals a lot of unclickable items, but just ISO numbers and a little text. but then the database browsing is still in beta.