DIN Standards Committee for Process and Plant Technology
DIN 28139-2
Welding necks for glass lined vessels - Part 2: Form M manhole, handhole and assembly opening for clamp screw connections - Connecting dimensions
Vorschweißbunde für emaillierte Apparate - Teil 2: Form M Personeneinstiegsöffnung, Handlochstutzen, Montageöffnung mit Klammerschrauben - Anschlussmaße
Document: references other documents
Responsible national committee
NA 178-01-06 AA - Vessels and apparatus made of steel enamel