The standard specifies technical specifications for pipe couplings.
DIN 86128-1:2005 history
2021DIN 86128-1:2021 Pipe couplings - Part 1: Technical delivery conditions for pipe couplings intended for connecting pipes and fittings
2015DIN 86128-1:2015 Pipe couplings - Part 1: Technical delivery conditions for pipe couplings intended for connecting pipes and fittings made of metal
2005DIN 86128-1:2005 Pipe couplings - Part 1: Technical specification