Technical rule [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This document replaces VDI 3491 Blatt 11:1990-01 , VDI 3491 Blatt 12:1990-01 , VDI 3491 Blatt 13:1996-06 , VDI 3491 Blatt 2:1980-07 , VDI 3491 Blatt 3:1980-11 , VDI 3491 Blatt 5:1980-12 .