DIN 19227-1 Control technology; graphical symbols and identifying letters for process control engineering; symbolic representation for functions DIN DIN
DIN 19227-2 Control technology; graphical symbols and identifying letters for process control engineering; representation of details DIN DIN
To sem našel na strani
http://www.nssn.org/?source=google&keyw ... XgodwisIPw
Drugače pa je najboljše karkoli o teh standardih iskati v večjih knjižnicah. Jaz sem vse kar sem potreboval glede DIN standartdov našel v mariborski Univerzitetni knjižnici.