Condividiamo una raccolta di siti utili
International Organization for Standardization (ISO)
American National Standards Institute (ANSI)
American Bureau of Shipping (ABS)
Ministero dell’istruzione della Ricerca Scientifica
European Organization for Nuclear Research (C.E.R.N.)
European Space Agency (E.S.A.)
Istituto Nazionale di Fisica della Materia(I.N.F.M)
American Iron and Steel Institute (AISI)
American Society of Mechanical Engineers (ASME)
American Society for Testing and Materials (ASTM)
American Welding Society (AWS)
Deutches Institut für Normung (DIN)
International Electrotechnical Commission (IEC)
National association for corrosion Engineers (NACE)
Every Spec (free download specifiche militari)
Accuradio (per progettare in serenità!)