NA 012

DIN Standards Committee Chemical Apparatus Engineering

DIN 28121 [Withdrawn] referenced in following documents:

Document number Edition Title
DIN 28148 1992-01 PTFE envelope gaskets for glass lined agitator vessels More 
DIN 28153-1 1994-04 Covers for DN 350 × 450, 500 and 600 openings in glass-lined apparatuses More 
DIN 28153-2 1994-04 Covers for DN 100 up to DN 250 openings in glass-lined apparatuses More