Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (IEC 61346-1:1996); German version EN 61346-1:1996— 37 стр.
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 2: Classification of objects and codes for classes (IEC 61346-2:2000); German version EN 61346-2:2000— 20 стр.
Contract Procedure for Building Works; Part C: General Technical Specifications for Building Works; Systems for Central Heating and Central Raw Water Heating— 21 стр.
Flow measurement; differential pressure devices with corner taps; length of pressure taps stud and installation dimensions for determination of space required— 6 стр.