DIN 28017-3:2012-04

This standard applies for the configuration and construction of vertical ladders on stationary accesses to process apparatus. As a rule they are walked on during controlling and maintenance work of these apparatus. Applicability shall be tested for enamelled, lined or coated apparatus as well as apparatus made of non-ferrous metals or plastics. Vertical ladders are designed for the following imposed loads: - rung load 1,5 kN - total load 6 kN (3 kN per stile). DIN 18799-1 is applicable for fixed vertical ladders for construction installations. DIN EN ISO 14122-4 is applicable for fixed vertical ladders for machinery installations. This standard has been prepared by NA 012 Chemical Apparatus Standards Committee (FNCA), Working Committee NA 012-00-01 AA "Anlagenteile" ("Process equipment").